Basic Maths Calculators

Quick, clear tools for everyday number problems, from working out discounts to comparing values and checking percentage changes.

Everyday maths made simpler

Basic maths comes up more often than we realise: comparing prices, checking a bill, understanding a discount, dividing costs or tracking progress towards a target. These calculators are designed to give a clear answer without needing to set out the formula yourself.

Using our calculators

Enter the values you know, choose the calculation that matches your question and the result will appear immediately. Check that you have entered the correct units and starting values, particularly when calculating a percentage increase or decrease.

Popular basic maths questions

  • What is 20% of a price?
  • What percentage of my budget have I spent?
  • What was the original price before a discount?
  • How much will a value be after a percentage increase?