Algebra tools and lessons from CalcSolver. Solve equations, work with polynomials, and practise the algebra you meet at school — free, in your browser, with no sign-up.
Algebra calculators
Choose a tool below. Every calculator shows its working, so you can follow each step and check your answer.
- Equation Solver
- Quadratic Equation Solver
- System of Equations Solver
- Polynomial Calculator
- Exponent Calculator
- Logarithm Calculator
- Slope Calculator
What is algebra?
Algebra is the part of maths that uses letters and symbols to stand for numbers. It lets you write general rules, solve for unknown values, and describe patterns — from a simple equation like x + 5 = 12 to the quadratic formula.
How to use these tools
Pick a calculator, enter your numbers, and tap Calculate. Read the step-by-step working underneath the answer, and try changing one value at a time to see how the result moves.
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