Scientific Calculator
Trig, logs, powers, roots and more.
Algebra Solver
Solve linear and quadratic equations with steps.
Graph Plotter
Plot any function y = f(x).
Calculus Solver
Derivatives and definite integrals.
Trigonometry
Trig ratios and right-triangle solver.
Equation Solver
Simplify expressions and solve for x.
Simpson’s Rule
Numerical integration by parabolas.
Mean Value Theorem
Find c where f'(c) equals the average rate.
Interval of Convergence
Radius of convergence via the ratio test.
Linear Regression
Line of best fit, r and R².
Square Root
Roots and simplified radicals.
Scientific Notation
Convert to and from standard form.
Free A-level maths calculators and tools
This is a collection of free online calculators covering the topics you meet in A-level and GCSE maths — from core algebra and trigonometry to calculus and statistics. Each tool runs instantly in your browser, shows working where it helps, and is built to support both UK and US curricula. Pick a tool above to get started.
What’s covered
The algebra solver handles linear and quadratic equations, while the calculus solver, Simpson’s rule, Mean Value Theorem, and interval of convergence tools cover the calculus and series topics in Year 13. For pure number work use the scientific calculator and trigonometry calculator, and for statistics try the linear regression calculator. The graph plotter ties it together by letting you visualise any function.
How to use these tools effectively
The best way to learn is to attempt a problem yourself first, then use these calculators to check your answer and the method. Many of the tools show the steps or key intermediate values, so you can see exactly where a mistake crept in — far more useful than just copying a final number.