Financial Calculators Calculators for mortgages, loans, leases, savings, investments, retirement, and other financial decisions. Mortgage Calculators Estimate mortgage payments, home equity, affordability, qualification, and rent-versus-buy comparisons. Home Equity Calculator Use this home equity calculator to estimate how much equity you may have in your home after subtracting mortgage and loan balances. Enter your home’s current value and any outstanding balances to see estimated available equity at 80%, 100%, and 125% of home value. Use this home equity calculator to estimate how much equity you may have in your home after subtracting mortgage and loan balances. Enter your home’s current value and any outstanding balances to see estimated available equity at 80%, 100%, and 125% of home value. How much house can I afford? This calculator allows you to calculate the amount you can afford to pay for a mortgage. This calculator allows you to calculate the amount you can afford to pay for a mortgage. Mortgage Payment The Mortgage Payment Calculator allows you to calculate monthly payments, average monthly interest, total interest, and total payment. The Mortgage Payment Calculator allows you to calculate monthly payments, average monthly interest, total interest, and total payment. Mortgage Qualification Calculator This calculator will try to calculate what kind of income lenders will expect you to be making to qualify for the specific values. This calculator will try to calculate what kind of income lenders will expect you to be making to qualify for the specific values. Rent versus Buy Calculator This calculator allows you to compare renting versus buying by entering how much you want to spend a month and how much down you would put into your house. This calculator allows you to compare renting versus buying by entering how much you want to spend a month and how much down you would put into your house. Simple Mortgage Payment Calculator This calculator allows you to calculate monthly payment, average monthly interest, total interest, and total payment of your mortgage. This calculator allows you to calculate monthly payment, average monthly interest, total interest, and total payment of your mortgage. Loan Calculators Calculate loan payments, interest, balances, and borrowing costs. Loan calculator Easily calculate the payments and interest amount on a loan based on the principal amount, annual interest and the number of payments with the free Loan calculator. Easily calculate the payments and interest amount on a loan based on the principal amount, annual interest and the number of payments with the free Loan calculator. Lease Calculators Estimate lease payments and compare lease terms. Car Lease This calculator lets you calculate your estimated lease payments. This calculator lets you calculate your estimated lease payments. Investment Calculators Explore investment returns, stocks, bonds, and related financial choices. Bond Valuation The purpose of this calculator is to provide calculations and details for bond valuation problems. It is assumed that all bonds pay interest semi-annually. Future versions of this calculator will allow for different interest frequency. The purpose of this calculator is to provide calculations and details for bond valuation problems. It is assumed that all bonds pay interest semi-annually. Future versions of this calculator will allow for different interest frequency. Stock Calculator Deciding when to buy and sell stocks is difficult enough - figuring the profit or loss from that trade should not have to be. Just enter the number of shares, your purchase price, your selling price, and the commission fees for the trade and this calculator instantly figures your resulting profit or loss after commission fees. Deciding when to buy and sell stocks is difficult enough - figuring the profit or loss from that trade should not have to be. Just enter the number of shares, your purchase price, your selling price, and the commission fees for the trade and this calculator instantly figures your resulting profit or loss after commission fees. Stocks vs. Bonds How much do I keep in stocks and bonds? How much do I keep in stocks and bonds? Retirement Calculators Estimate retirement savings, tax-deferred contributions, and future withdrawals. IRA/401(k)/403(b) Retirement Calculation Find out how much to put away tax deferred to get a certain amount of money in the future, and how much you could expect to draw out of that money. Just put in some numbers to see! Find out how much to put away tax deferred to get a certain amount of money in the future, and how much you could expect to draw out of that money. Just put in some numbers to see! Savings Calculators Estimate savings growth, account balances, and time needed to reach financial goals. How long until you are a millionaire? This calculator allows you to calculate how long it will take until you reach your desired account balance. This calculator allows you to calculate how long it will take until you reach your desired account balance. Savings Estimator Enter how much you can afford to save each month, how long you can save this amount, and the interest rate you can get on your savings and this calculator will display your total savings. Enter how much you can afford to save each month, how long you can save this amount, and the interest rate you can get on your savings and this calculator will display your total savings. Ad Calculator Selling ad banners has just got easier! Just enter two of the three fields of information, such as the total cost, CPM (cost per thousand impressions), and exposures (number of ads shown), and the calculator will solve the last field for you. Selling ad banners has just got easier! Just enter two of the three fields of information, such as the total cost, CPM (cost per thousand impressions), and exposures (number of ads shown), and the calculator will solve the last field for you. College Savings Projection Calculator Project what your current college savings plan may cover and estimate any funding gap. Project what your current college savings plan may cover and estimate any funding gap. College Savings Goal Calculator Calculate the monthly or annual contribution needed to meet a college savings goal. Calculate the monthly or annual contribution needed to meet a college savings goal. Loan Comparison Compare two fixed-rate loan scenarios, including monthly payments, total interest, total cost, closing costs, and a simple closing-cost recovery estimate. Compare two fixed-rate loan scenarios, including monthly payments, total interest, total cost, closing costs, and a simple closing-cost recovery estimate. Loan Length Calculator Enter how much you want to spend each month, an interest rate, and a loan amount and the calculator tells you how long it will take you to pay it off! Enter how much you want to spend each month, an interest rate, and a loan amount and the calculator tells you how long it will take you to pay it off! Money Counter This calculator allows you to calculate the total amount of money you have, just enter the number of bills and coins. This calculator allows you to calculate the total amount of money you have, just enter the number of bills and coins. Student Loan Calculator Estimate student-loan payments, total interest, payoff timing, or an affordable loan amount. Estimate student-loan payments, total interest, payoff timing, or an affordable loan amount. Math Calculators Calculators for percentages, equations, geometry, trigonometry, prime numbers, and other math problems. Compact Scientific Calculator Use this compact scientific calculator for arithmetic, trigonometry, logarithms, powers, roots, fractions, and other scientific calculations. Use this compact scientific calculator for arithmetic, trigonometry, logarithms, powers, roots, fractions, and other scientific calculations. Cosine Calculator Enter the adjacent and hypotenuse angle values and this calculator will solve the cosine angle for you. Enter the adjacent and hypotenuse angle values and this calculator will solve the cosine angle for you. Expression Solver Just enter a math expression and this calculator will evaluate the expression for you. Just enter a math expression and this calculator will evaluate the expression for you. Length Adding Calculator The Length Adding calculator allows you to add feet and inches. The Length Adding calculator allows you to add feet and inches. Fractions Calculator Use this fractions calculator for fraction and decimal arithmetic with a running calculation tape. Use this fractions calculator for fraction and decimal arithmetic with a running calculation tape. Graphing Calculator Graph explicit functions of x with a simple responsive graphing calculator. Graph explicit functions of x with a simple responsive graphing calculator. Percentage Calculator The percentage calculator allows you to find out what the amount, the percentage, the percent amount, the percent increase or the percent decrease is, if you know any of the two. The percentage calculator allows you to find out what the amount, the percentage, the percent amount, the percent increase or the percent decrease is, if you know any of the two. Perches to Square Meters and Square Feet Calculator Online Perches to Square Meters and Square Feet Calculator. Online Perches to Square Meters and Square Feet Calculator. Prime Number Calculator Enter a number and this calculator will instantly tell you if it is a prime number or not. Enter a number and this calculator will instantly tell you if it is a prime number or not. Pythagorean Theorem Calculator Enter any two sides of a right triangle and leave the unknown side blank. The calculator solves for side A, side B, or hypotenuse C, or verifies whether all three sides form a right triangle. Enter any two sides of a right triangle and leave the unknown side blank. The calculator solves for side A, side B, or hypotenuse C, or verifies whether all three sides form a right triangle. Quadratic Equation Calculator A calculator to figure the square root of the number you enter. Just enter the coefficients for the Ax^2 + Bx + C = 0 equation and the calculator will output the solutions (if they are not imaginary!). Neat! A calculator to figure the square root of the number you enter. Just enter the coefficients for the Ax^2 + Bx + C = 0 equation and the calculator will output the solutions (if they are not imaginary!). Neat! Advanced Scientific Calculator Use this advanced scientific calculator for arithmetic, trigonometry, statistics, matrices, constants, and complex mathematical expressions. Use this advanced scientific calculator for arithmetic, trigonometry, statistics, matrices, constants, and complex mathematical expressions. Sine Calculator Enter the opposite and hypotenuse angle values and this calculator will solve the sine angle for you. Neat! Enter the opposite and hypotenuse angle values and this calculator will solve the sine angle for you. Neat! Standard Calculator Use this standard tape calculator for everyday arithmetic with a running calculation tape. Use this standard tape calculator for everyday arithmetic with a running calculation tape. Stem and Leaf Plot This calculator allows you to create a special table where each data value is split into a stem (the first digit or digits) and a leaf (usually the last digit). This calculator allows you to create a special table where each data value is split into a stem (the first digit or digits) and a leaf (usually the last digit). Tangent Calculator This calculator will solve the tangent angle for you, just enter the opposite and adjacent angle values and press Calculate. This calculator will solve the tangent angle for you, just enter the opposite and adjacent angle values and press Calculate. Date & Time Calculators Calculators for calendar dates, elapsed days, countdowns, age, business days, and time durations. Days until Christmas Use this calculator to find out how many days are left until Christmas. Use this calculator to find out how many days are left until Christmas. Days Between Dates Calculator Calculate the exact number of calendar days between two dates. Enter a start date and an end date, and the result updates automatically. Calculate the exact number of calendar days between two dates. Enter a start date and an end date, and the result updates automatically. Conversion Calculators Convert currencies, temperatures, measurements, data sizes, and other units. Angle Converter Convert between degrees, radians, turns, arcminutes, arcseconds, gradians, angular mils, and other angle units. Convert between degrees, radians, turns, arcminutes, arcseconds, gradians, angular mils, and other angle units. Area Converter Convert between metric, imperial, land, and scientific area units. Convert between metric, imperial, land, and scientific area units. Color Calculator Convert colors between Hex, RGB, HSL, HSV, and CMYK, and view complementary and inverted colors. Convert colors between Hex, RGB, HSL, HSV, and CMYK, and view complementary and inverted colors. Currency calculator Currency calculator allows you to convert between currencies. Exchange between dollars, pounds, euro, yen, yuan, and many more. Currency calculator allows you to convert between currencies. Exchange between dollars, pounds, euro, yen, yuan, and many more.

Data Size Calculator This calculator allows you to calculate data size in bits, nibbles, bytes, kilobytes, megabytes, gigabytes, and terabytes. This calculator allows you to calculate data size in bits, nibbles, bytes, kilobytes, megabytes, gigabytes, and terabytes. Density Converter Convert between kilograms per cubic meter, grams per cubic centimeter, grams per milliliter, pounds per cubic foot, and other density units. Convert between kilograms per cubic meter, grams per cubic centimeter, grams per milliliter, pounds per cubic foot, and other density units. Energy Converter Convert between joules, calories, kilocalories, watt-hours, kilowatt-hours, BTU, electronvolts, and other energy units. Convert between joules, calories, kilocalories, watt-hours, kilowatt-hours, BTU, electronvolts, and other energy units. Flow Rate Converter Convert between liters per minute, gallons per minute, cubic feet per minute, cubic meters per second, and other flow-rate units. Convert between liters per minute, gallons per minute, cubic feet per minute, cubic meters per second, and other flow-rate units. Force Converter Convert between newtons, kilonewtons, pound-force, kilogram-force, dynes, kip, and other force units. Convert between newtons, kilonewtons, pound-force, kilogram-force, dynes, kip, and other force units. Frequency Converter Convert between hertz, kilohertz, megahertz, gigahertz, terahertz, cycles per second, and rpm. Convert between hertz, kilohertz, megahertz, gigahertz, terahertz, cycles per second, and rpm. Fuel Economy Converter Convert between miles per gallon, kilometers per liter, liters per 100 kilometers, and other fuel economy units. Convert between miles per gallon, kilometers per liter, liters per 100 kilometers, and other fuel economy units. Length Converter Convert between metric, imperial, nautical, astronomical, typographic, and other length units. Convert between metric, imperial, nautical, astronomical, typographic, and other length units. Power Converter Convert between watts, kilowatts, megawatts, horsepower variants, BTU per hour, foot-pounds per second, and other power units. Convert between watts, kilowatts, megawatts, horsepower variants, BTU per hour, foot-pounds per second, and other power units. Pressure Converter Convert between pascals, bars, atmospheres, psi, torr, mercury column, water column, and other pressure units. Convert between pascals, bars, atmospheres, psi, torr, mercury column, water column, and other pressure units. Speed Converter Convert between meters per second, kilometers per hour, miles per hour, knots, Mach, and other speed units. Convert between meters per second, kilometers per hour, miles per hour, knots, Mach, and other speed units. Temperature calculator The temperature calculator allows you to convert temperature degrees between Celsius, Fahrenheit, Kelvin, Rankine, Delisle, Newton, Réaumur and Rømer. Enter a value in any field to see the other values. The temperature calculator allows you to convert temperature degrees between Celsius, Fahrenheit, Kelvin, Rankine, Delisle, Newton, Réaumur and Rømer. Enter a value in any field to see the other values. Time Converter Convert between seconds, minutes, hours, days, weeks, months, years, and other duration units. Convert between seconds, minutes, hours, days, weeks, months, years, and other duration units. Torque Converter Convert between newton-meters, pound-feet, pound-inches, ounce-inches, and kilogram-force torque units. Convert between newton-meters, pound-feet, pound-inches, ounce-inches, and kilogram-force torque units. Unit Converter Convert length, area, volume, speed, pressure, energy, power, time, and weight or mass units using curated unit choices. Convert length, area, volume, speed, pressure, energy, power, time, and weight or mass units using curated unit choices. Volume Converter Convert between metric, cubic, US liquid, Imperial, dry, and other volume units. Convert between metric, cubic, US liquid, Imperial, dry, and other volume units. Weight / Mass Converter Convert between grams, kilograms, pounds, ounces, stones, tons, and metric tons. Convert between grams, kilograms, pounds, ounces, stones, tons, and metric tons. Health & Fitness Calculators Calculators for body measurements, calories, pregnancy dates, and other health-related estimates. BAC Calculator This calculator allows you to calculate blood alcohol content (BAC) based on the quantity of beverages consumed, the alcohol percentage in each drink, the weight of the person, and the time spent consuming the drink. This calculator allows you to calculate blood alcohol content (BAC) based on the quantity of beverages consumed, the alcohol percentage in each drink, the weight of the person, and the time spent consuming the drink. Body Mass Index Calculator This calculator allows you to calculate your Body Mass Index (BMI). Body Mass Index (BMI) is a person's weight in kilograms divided by the square of height in meters. Find out your BMI and what it means for your health. This calculator allows you to calculate your Body Mass Index (BMI). Body Mass Index (BMI) is a person's weight in kilograms divided by the square of height in meters. Find out your BMI and what it means for your health. Calories Calculator This calculator allows you to figure out how many calories you have burned. This calculator allows you to figure out how many calories you have burned. Pregnancy Calculator This calculator allows you to calculate your due date, conception date, and fetal age. This calculator allows you to calculate your due date, conception date, and fetal age. Social Distancing Calculator We stay home! To understand why, adjust the 'Social distancing factor' slider to see the effect and impact of social distancing. We stay home! To understand why, adjust the 'Social distancing factor' slider to see the effect and impact of social distancing. Automotive Calculators Calculators for fuel economy, speed, horsepower, vehicles, boats, and other automotive-related estimates. High Performance Bass Fishing Boat Speed Calculator This calculator allows you to calculate a bass fishing boat's speed. This calculator allows you to calculate a bass fishing boat's speed. Horsepower Calculator This calculator allows you to find out your vehicle's horsepower. This calculator allows you to find out your vehicle's horsepower. Miles per Gallon Calculator This calculator allows you to compute the miles per gallon of your car via the miles travelled and the number of gallons used. Also, if you enter the cost per gallon and how many miles you drive a day, it will estimate your monthly and yearly gas expenses. This calculator allows you to compute the miles per gallon of your car via the miles travelled and the number of gallons used. Also, if you enter the cost per gallon and how many miles you drive a day, it will estimate your monthly and yearly gas expenses. Miles per Hour Calculator This calculator allows you to calculate miles per hour. This calculator allows you to calculate miles per hour. Sports & Hobbies Calculators Calculators for vehicles, sports, hobbies, speed, power, and related activities. Armor Penetration Calculator This calculator allows you to figure armor penetration. This calculator allows you to figure armor penetration. Soccer Statistics Calculator Calculate goalkeeper saves, save percentage, scoring percentage, shot ratios, and win percentages for soccer teams. Calculate goalkeeper saves, save percentage, scoring percentage, shot ratios, and win percentages for soccer teams. Computing Calculators Calculators for data, downloads, computer storage, and other computing tasks. Download Calculator This calculator allows you to estimate how long it will take to download a file at any of a number of modem speeds. Try it out! This calculator allows you to estimate how long it will take to download a file at any of a number of modem speeds. Try it out! Weather Calculators Calculators for weather, atmosphere, wind chill, and related atmospheric estimates. Atmosphere Calculator Calculate standard-atmosphere properties from altitude, speed, and reference length. Calculate standard-atmosphere properties from altitude, speed, and reference length. Cricket Chirp Temperature Calculator Estimate the outdoor temperature from cricket chirps counted during 25 seconds. Estimate the outdoor temperature from cricket chirps counted during 25 seconds. Fun Calculators Lighthearted calculators for dates, compatibility, signs, and other fun uses. Astrological Signs Calculator Find out your Western Sun Sign, and your Eastern or Chinese Sign. Find out your Western Sun Sign, and your Eastern or Chinese Sign. Love calculator Are you in love and want to know if it could be a good match? Calculate your chances of a successful relationship based on your first names with the free Love calculator! Are you in love and want to know if it could be a good match? Calculate your chances of a successful relationship based on your first names with the free Love calculator! Love Compatibility Calculator To find out what the chances for you and your dream partner are, just fill in your and his or her Info and click Calculate. To find out what the chances for you and your dream partner are, just fill in your and his or her Info and click Calculate. Phone Number Converter Have you ever wondered if your phone number has a memorable text equivalent, like 555-HELP? Just type it in and this calculator will generate all possible combinations, just pick your favourite one and tell the world how to reach you. Have you ever wondered if your phone number has a memorable text equivalent, like 555-HELP? Just type it in and this calculator will generate all possible combinations, just pick your favourite one and tell the world how to reach you. Other Calculators Useful calculators that do not fit neatly into the main categories. Airport Calculator This useful calculator will tell you the degrees, Nautical Miles, Statute Miles, and Kilometers between your originating and destination airports. It has a built-in database of over 150 of the most travelled airports! This useful calculator will tell you the degrees, Nautical Miles, Statute Miles, and Kilometers between your originating and destination airports. It has a built-in database of over 150 of the most travelled airports! Final Grade Calculator Calculate the exam score needed for a target grade or project a final course grade. Calculate the exam score needed for a target grade or project a final course grade. Final Grade Projection Calculator Project a final course grade from the current grade, final exam weight, and expected exam score. Project a final course grade from the current grade, final exam weight, and expected exam score. GPA Calculator Calculate semester and cumulative GPA from letter or numeric grades and course credits. Calculate semester and cumulative GPA from letter or numeric grades and course credits. Grade Calculator Calculate an overall course grade using points or weighted categories. Calculate an overall course grade using points or weighted categories. Group Work Calculator Ever had to work with another person to complete a task? This calculator will tell you how long it would take two people to complete the task if you know how long it would take each person to complete the task individually. Ever had to work with another person to complete a task? This calculator will tell you how long it would take two people to complete the task if you know how long it would take each person to complete the task individually. Required Final Score Calculator Calculate the score needed on a final exam to reach a desired course grade. Calculate the score needed on a final exam to reach a desired course grade. Room Size Calculator This calculator allows you to find the approximate room size you will need depending on your room setup and arrangement. This calculator allows you to find the approximate room size you will need depending on your room setup and arrangement. Test Grade Calculator Calculate a test percentage, fraction, and letter grade from correct or incorrect answers. Calculate a test percentage, fraction, and letter grade from correct or incorrect answers. Simple Tiling Calculator This calculator allows you to calculate how many tiles you need to cover a simple rectangular area. Works both in metric and imperial units. Works for both rectangular and square tiles. This calculator allows you to calculate how many tiles you need to cover a simple rectangular area. Works both in metric and imperial units. Works for both rectangular and square tiles. Wind Chill Calculator Wind Chill is a mysterious and often misunderstood phenomenon. This calculator describes what the wind chill factor really is and offers a form to calculate the wind chill factor when given the air temperature and wind speed. Wind Chill is a mysterious and often misunderstood phenomenon. This calculator describes what the wind chill factor really is and offers a form to calculate the wind chill factor when given the air temperature and wind speed.