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Calculators

Finance, school math, health, date and random calculators for everyday numbers.

What are Calculators?

A calculator turns a few numbers into an answer you can act on, such as a monthly loan payment, a body mass index or the total price with tax.

These calculators show their working so you can check the result.

What you will find in Calculators

This section groups calculators into math and numbers (calculator, percentages, averages, number bases, random numbers), finance (loan EMI, compound interest, discount, tip, salary, sales tax) and health (BMI, daily calories).

How to use these tools

  1. Choose the type of calculator you need.
  2. Enter your numbers.
  3. Read the result and, where shown, the breakdown.

Did you know?

  • Blaise Pascal built one of the first mechanical calculators, the Pascaline, in the 1640s.
  • Results are estimates for planning. For financial or medical decisions, check with a professional.