Welcome to Calculators.net!

Home of free online calculators — Calculators.net's mission statement is to be the world's largest and most comprehensive collection of online calculators on the Web.

Calculators.net provide a seemingly endless array of handy and useful calculators along with plenty of conversion toolsorganized by a large variety of categoriesfrom math & science to financehealth & everyday cooking — and it's always FREE!

Length

Our length converter tool enables quick and accurate conversions between many units of length measurements.

Kilometer to MileMile to Kilometermore »

Area

This area converter tool can help you quickly switch between any units of area such as acres and square feet.

Dunam to AcreAcre to Dunammore »

Weight

The useful weight converter tool is here to assist with any conversions between different weight unitssuch as pounds and kilograms.

Kilogram to poundPound to Kilogrammore »

Time

How many minutes are in a day? If this kept you up at night you arrived to the right place — our time units conversion tool is here to help!

Second to MillisecondHour to Minutemore »

Volume

How many pints are in a gallon? Our volume conversion tool makes converting between 12 different volume variants a snap.

Pint to QuartLiter to Gallonmore »

Temperature

Is it getting hot in here? Temperature conversions can get tricky sometimgesunless you use our temperature conversion tool!

Celsius to FahrenheitKelvin to Celsiusmore »

Velocity

Miles per hour to Kilometer per hour and backwards — In the need for speed our velocity conversion calculator is your tool for success!

Knot to Mile / HourMile / Hour to Knotmore »

Power

Feeling energized? Our power conversion tool is equipped with everything you need to go from watts to kilowatts and up to megawatts.

Watt to HorsepowerKilowatt to Wattmore »

Angles

Need to know how to convert degrees to radians? Then come on inwe also master degreespoints and circles in our angle conversion tool.

Degree to RadianRadian to Gradientmore »

Data Storage

Everything in computing is zeros and ones. Bits and bytes are essentially building our computer worldand our data storage conversion tool is here to make some order out of the chaos.

Terabyte to GigabyteGigabyte to Bytemore »

Number Systems

There are 10 types of people in this worldthose who understand binary and those who don't — Our number systems converter will make you the former :-)

Binary to DecimalDecimal to Octalmore »

Cooking

First step in becoming a master chef is knowing how to read the recipe right — How many teaspoons are in a tablespoon? The answer for this and many more is inside...

Teaspoon to TablespoonCup to Shotmore »

Time Zones

What is the time in Russia? Wellwith eleven different time zonesthe answer is "it depends"... In any caseour time zones converter makes it easy to find out.

New YorkUSA to JerusalemIsraelmore »

Math

"Nature is written in mathematical language" — With our collection of math calculators and expression evaluator everyone can perform useful mathematical calculations in seconds.

(100 * 0.3) + 15gcd(10015)more »

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A circle is a simple closed shape. It is the set of all points in a plane that are at a given distance from a given pointthe centre; equivalently it is the curve traced out by a point that moves so that its distance from a given point is constant.
Area = π * radius2




A = π * r2 =
Rate this calculator:3.8 / 8 votes

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4 Comments
  • yfa_k
    yfa_k
    the best calculator everseen
    LikeReply 32 years ago
  • courtneye
    courtneye
    Calculators.net is my go-to destination for all things calculation-related. From basic arithmetic to complex scientific functionsthis website has a user-friendly interface and an impressive array of calculators that make number crunching a breeze. The convenience and accuracy of the calculators have been a game-changer for me in both work and personal projects. It's a reliable tool that simplifies the mathand I highly recommend it for anyone seeking efficient and accessible online calculators. 
    LikeReply 12 years ago
  • alebadah_c
    alebadah_c
    It's Very Good website Continue
    LikeReply 63 years ago
    • imels.44823
      imels.44823
      I agree. They got all the numbers information here. Very educational.
      LikeReply 32 years ago
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