calculator.com wishes everyone to BE WELL, STAY WELL, GET WELL. The most important thing you can do right now is STAY HOME as much as possible. Use our new COVID-19 social distancing impact calculator to see why you don’t need to take the risk, for you, for your family, for your friends, for all of us, calculate it!

The COVID-19 social distancing impact calculator was developed 100% @home.
 

×


Length Adding Calculator
The Length Adding calculator allows you to add feet and inches.


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.


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.

Financial

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.
Car Lease
This calculator lets you calculate your estimated lease payments.
General Loan
This calculator allows you to calculate monthly payment, interest rate, total payments, and total interest of your loan.
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!
Stocks vs. Bonds
How much do I keep in stocks and bonds?

Financial Savings

Future Value/Annuity 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!
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.
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!

Financial Home

Home Equity Calculator
Use this calculator to see how much you may be eligible to borrow.
How much house can I afford?
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.
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.
Simple Mortgage Payment Calculator
This calculator allows you to calculate monthly payment, average monthly interest, total interest, and total payment of your mortgage.

Fun

Astrological Signs Calculator
Find out your Western Sun Sign, and your Eastern or Chinese Sign.
Days until Christmas
Use this calculator to find out how many days are left until Christmas.
The Love Calculator
Fill in your name and his/her name and find out what are the chances for the two of you!
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.

Sports & Hobbies

High Performance Bass Fishing Boat Speed Calculator
Online High Performance Bass Fishing Boat Speed Calculator
Miles per Hour Calculator
This calculator allows you to calculate miles per hour.

Health & Fitness

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.
Pregnancy Calculator
This calculator allows you to calculate your due date, conception date, and fetal age.

Converters

Currency calculator
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.
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.

Math

Perches to square meters and square feet Calculator
Online Perches to meters and feet Calculator.
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).

Help and Tips

Color Coding

Simple number or constant.

Action that involves two numbers (i.e. 6+2).

Action that requires one number (i.e. 40%).

Clears something.

Gives a result.

Actions about the calculator or the tape.

Number formating actions fractions and scientific notation.

Keyboard

You can use your numeric keypad to insert numbers along with the keys 'enter', 'equals', 'backspace', 'delete', as well as the  + - * / keys.

Tape and Tape Buttons

All calculations are saved on the tape. Click on any number or operator on the tape and change it at any time. Hit equals and the new result will appear.

You can use the print button to print out the tape.

Clearing Buttons

Clear button clears the last input.

All clear button clears the calculator, tape, and resets any functions.

Memory clear button clears the memory.

×
Backspace button clears the last digit.

Memory Buttons

Memory recall button retrieves the number you have in memory and places it in the display field.

Memory plus button adds the number displayed to the contents of the memory.

Memory minus button subtracts the number displayed from the contents of the memory.

Function Buttons

 
Square root button is used to calculate the square root of a number. Enter a number, then click square root button.

Percent button is used to find the percentage of a number. Enter the percentage amount, click the % button, then enter the number you want the percentage of, and then click equals. i.e. 20% 125 = 25 where 25 is 20% of 125. Note: The percent function will also work if you enter the number first and then the percentage you want i.e. 125 %20 = 25.

Fractions

To enter a fraction of the form 3/4. Click a number and then click fraction bar, then click another number.

You can use fraction space button to create a number of the form 5 3/4. Enter a number, then click fraction space, click another number and then click on the fraction bar button, lastly enter another number.

Decimal format button and Fraction format button work as pair. When you choose the one the other is switched off.
Decimal format button is used for all decimal work. Also to change a fraction of the form 3/4 to the decimal 0.75, or a fraction of the form 7/4 or a mixed number of the form 1 3/4 to the decimal 1.75. Click on the decimal format button, enter a fraction or mixed number, then click equals. If the fraction or mixed number is only part of the calculation then omit clicking equals and continue with the calculation per usual. i.e. 3/4 DEC x 6 =.
Fraction format button is used to work with all fractions. Also to change a decimal of the form 0.5 to the fraction 1/2, or change a decimal of the form 1.75 to a mixed number of the form 1 3/4 or to the fraction 7/4, or a fraction of the form 7/4 to the mixed number 1 3/4. Click the fraction format button, enter a decimal, click equals and then click on a fraction form and then click equals. If the fraction of decimal is part of a calculation, omit clicking equals and continue with the calculation.

Proper fraction button and Improper fraction button work as pair. When you choose the one the other is switched off.
Proper fraction button is used to change a number of the form of 9/5 to the form of 1 4/5. A proper fraction is a fraction where the numerator (top number) is less than the denominator (bottom number).
Improper fraction button is used to change a number of the form of 1 4/5 to the form of 9/5. An improper fraction is a fraction where the numerator (top number is greater than or equal to the denominator (bottom number).