Maths Calculator - Online Maths Calculator

This is our Online Maths Calculator - Easy to use online and free and with a Sums History!
Check out the Maths Calculator!
The history of sums entered will be great when showing workings out in classrooms or meetings.

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Use the Maths Calculator Full Screen

Site Menu

Home Page - Go Back to the Home Page... :-)
Full Screen Calculator - The Online Calculator that can be used free and full screen
Scientific Calculator - A great Scientific Calculator. Clear and Free!
Simple Calculator - A nice Simple Free Online Calculator. Easy to use and read.
Online Abacus - An Online Abacus! Teach numbers from 1 to 50 :-)
Darts Calculator - Forget the maths, and play Darts!
Maths Calculator - This Online Maths Calculator show the history of your sums. Very helpful!
BMI Calculator - Work out your BMI / Body Mass Index
Patio Calculator - How many slabs for that patio?
Ring Size Converter - What size ring do you need? Know the differences
Length Converter - Convert Lengths! CM, Feet, and more!
Percentage Calculator - Work out all the percentages you need!
Volume Converter - Find the Volume of a cube!
Weight Converter - Convert between weights
Length Conversions - A collection of Length conversion tools
Speed Conversions - A collection of Speed conversion tools
Temperature Conversions - A collection of Temperature conversion tools
Time Conversions - A collection of Time conversion tools
Weight Conversions - A collection of Weight conversion tools

Stopwatch - Online Stopwatch, FULL SCREEN Stopwatch. Great for meetings, classrooms, conferences, schools, anywhere really... :-)
Random Name Pickers - Random Name Picker Wheel and More Random Generators!
Distance Converter - Convert Distances! Miles, KM, and more!
Temperature Converter - Too Hot/ Too Cold? / Just Right!
Circle Tools - Circle Radius, Circle Diameter, or Circle Circumference

Conversions Calculators

Effortlessly convert units, currencies, and more with our comprehensive range of simple to use conversion calculators! Here are just a few, make sure you check our all the others we have to offer!

Our weight conversion tools are accurate, easy to use, and offer a wide range of units.

Weight Conversions

Get precise and hassle-free length conversions with our user-friendly and comprehensive length conversion calculators.

Length Conversions

Our temperature conversion calculators are accurate, simple to use, and covers various temperature units.

Temperature Conversions

Loads of other easy to use conversion tools!

More Conversions...

Featured Tools:

These are some of the most popular calculators and tools on the site!

Darts Calculator

Our Darts Calculator helps players calculate scores and checkouts quickly and accurately, making the game more enjoyable and competitive!

Darts Calculator

BMI Calculator

Our BMI Calculator quickly calculates Body Mass Index to help users understand their weight status and make informed health decisions.

BMI Calculator

Online Abacus

Our Online Abacus is a virtual version of the traditional counting tool, designed to help children learn and practice basic math skills.

Online Abacus

Scientific Calculator

Our Scientific Calculator is a powerful tool that performs complex mathematical calculations and functions.

Scientific Calculator

The History of the Calculator!

Online-Calculator.com has been around since 2007! That's a long time!

The original calculator was invented in the 17th century by a Frenchman called Blaise Pascal! He was just 18 years old, and wanted to help his father do his tax calculations. Join us on the fascinating history of the calculator!

The History of the Calculator!