Online calculators and maths guides

Fast, simple and easy to use online calculators with step by step guides on how to work out maths questions.

Percentage calculators

• Percentage difference
• Percentage increase and decrease
• Percent of a number
• Sale price
• What percentage one number is of another
• Fraction to percentage calculator

Average calculators

• Mean average
• Median average
• Mode average
• The range

Fraction calculators

• Fraction to decimal calculator
• Mixed Fraction to decimals calculator
• Fraction to percent calculator
• Adding fractions calculator
• Subtracting fractions calculator
• Multiplying fractions calculator

Number conversions

• Binary to decimal calculator
• Decimal to binary calculator
• Binary addition calculator
• Binary subtraction calculator
• Binary to hexadecimal conversion calculator
• Hexadecimal to binary conversion calculator
• Hexadecimal addition calculator
• Hexadecimal subtraction calculator
• Maximum value based on the number of Hexadecimal digits calculator

Conversions

• Mass calculator

Tools

• Grade calculator
• Gold Jewellery Price Calculator
• Mobile Phone Contract Calculator

Games

• T accounts game (Credits and debits)
• Binary to Hexadecimal Conversion Game

How to guides

• How to calculate percentages
• How to calculate average
• How to calculate mass
• How to calculate volume
• How to calculate time

Useful links

• A level help
• Help in Python