iCalculator™ - Free Online Calculators

Calculator™: Free Online Calculators

iCalculator™ is a specialist site which provides free online calculators with supporting articles and guides, we have:

  1. The largest selection of salary and tax calculators in the world
  2. Dedicated, free educational material for Maths, Physics, Chemistry and Engineering with supporting calculators, tutorials, lessons, video lessons, revision guides and practice questions with answers.
  3. Over 150,000 calculators that are free for you to use on our website

Popular Calculators

Calculator Categories

About iCalculator™

The calculators provided on this website are free to use, we make no guarantee of their accuracy though clearly aim for 100%. iCalculator™ supports a broad range of free to use online calculators like math ratio calculators so we need your support. We kindly ask that if you:

  1. Spot a mistake (a bug)
  2. Have a new feature request
  3. Would like us to build a new calculator

You can provide feedback and raise feature requests by contacting us through our website. Your time and support helps us keep the tools free.