Free Online Calculators
Step-by-step math tools that show every working step, not just the final answer.
StepSolvers is a free collection of math and science calculators that show every step of the working, not just the answer. Whether you need to calculate the mean of a dataset, solve a quadratic equation, simplify a fraction, or find the hypotenuse of a right triangle, every result comes with a complete step-by-step explanation. No signup. No paywall. No limits.
All Calculators
Pick a tool and get step-by-step solutions instantly.
Average Calculator
Calculate mean, median, and mode with full step-by-step breakdown.
Pythagorean Theorem
Find the hypotenuse or any missing side of a right triangle, with step-by-step working and SVG diagram.
Scientific Notation
Convert numbers to and from scientific notation with step-by-step explanation.
Fraction Calculator
Add, subtract, multiply, and divide fractions with full simplification steps.
Percent Increase / Decrease
Find percentage change, new values, or original values with clear steps.
Standard Deviation
Compute population or sample standard deviation with every step shown.
Quadratic Formula
Solve ax²+bx+c=0 and find roots, real or complex, step by step.
Square Root Calculator
Simplify radicals, factor perfect squares, and get decimal approximations.
Log / Exponent Calculator
Compute log, ln, and exponential functions with change-of-base steps.
Slope / Linear Equation
Find slope, y-intercept, and the full equation from two points.
P-Value / Probability
Calculate p-values from z-scores or t-scores, one-tailed and two-tailed, with a normal distribution diagram.
Volume / Geometry Calculator
Calculate the volume and surface area of 8+ shapes, sphere, cylinder, cone, cube, with formula and steps.
Why Use StepSolvers?
Most calculators show you the answer. StepSolvers shows you how to get there, every formula, every step, every intermediate calculation, laid out clearly so you can follow and learn.
- Always free, no subscription, no trial, no hidden paywall
- Step-by-step working shown for every single calculation
- Works on mobile, fast, clean, and easy to use on any screen
- No signup required, open a tool and start calculating instantly
- Covers the most common math and science calculations students need
- Each tool includes worked examples, formulas, and an FAQ section