CalcSolver is a free scientific calculator and a set of free math and finance calculators — no sign-up, no app, no cost. It works on any device: phone, tablet, laptop, or school Chromebook.
Who is CalcSolver for?
CalcSolver is made for students — from middle school to college — and for anyone who needs a quick, correct answer: homework, revision, budgeting, loans, and everyday maths. Teachers can use it in class, and parents can use it to help with homework.
What can you do here?
- Use the free scientific calculator on the home page — sin, cos, tan, log, fractions, powers, roots and more.
- Browse all 52 free calculators on the All Tools page.
- Learn the maths behind the answers with the Algebra and Fractions guides.
- Test yourself with the Quizzes.
Is CalcSolver really free?
Yes. Every calculator and guide on this site is free to use, with no account and no sign-up. Results are shown with the working, so you can learn from them — not just copy the answer.