Calculator Solver is a free website of math tools: a scientific calculator and 43 step-by-step solvers for algebra, fractions, number theory, statistics, geometry, calculus, money and units.
Why it exists
Most online calculators give an answer and nothing else. That helps when you only need a number, but it does not help you learn. Every solver on this site shows its working, so you can follow the method, check your own homework and see where a mistake crept in.
Who it is for
- Students checking homework or studying for a test
- Teachers who want a quick, clear demonstration for a class
- Parents helping with math at home
- Anyone who needs a fast calculation without installing an app
How it works
Everything runs in your browser. Calculations are not sent to a server, there is no sign-up, and the site works on phones, tablets, laptops and Chromebooks.
Accuracy
Each tool is tested against known results, including edge cases such as division by zero and impossible triangles. If you ever find an answer that looks wrong, please tell us through the contact page so we can fix it.