Evaluate arithmetic algebra expressions with + − × ÷, parentheses and decimals — digits-only evaluator, no variables. Check homework before class — free, local, no signup.
Raise any base to any power — squares, cubes, negative and fractional exponents with full precision. Students check 2^10 = 1024 homework in seconds — free, no signup, runs locally.
Evaluate mathematical expressions with sin, cos, tan, log, and sqrt functions. A versatile scientific calculator in your browser. No signup or account required.
Convert decimals to exact fractions — 0.75 to 3/4 with repeating-decimal support. Get exact answers for homework — free, local, no signup.
Validate IBAN structure, length, and mod-97 check digits for 80+ countries. Catch transfer typos before money moves — local ibantools work, free, no signup.
Count characters, letters, digits, spaces, and punctuation as you type — totals with and without spaces plus an upper/lowercase split. Fit a 280-character post exactly — free, local, no signup.
Plain arithmetic expressions with + − × ÷, parentheses and decimals (e.g. 2*(3+4)). No variables exist here, so linear equations, systems and quadratics need their dedicated solvers.
No — it returns the numeric result only, with no step-by-step isolation working. Copy the answer, then show your own working for class.
Decimals compute directly and parentheses group first, following standard precedence (* and ÷ before + and −). Try (5+5)/2 and 10+20*3 to see precedence in action.
No — solving runs locally in your browser. Nothing leaves your device.
There is no power operator, so write powers out longhand (2*2*2…): the preset shows 2^10 as ten multiplied 2s. Anything with x or = will not parse.
Math Equation Solver
Solve linear equations step by step — isolate x with operations shown. Check 3x + 7 = 22 → x = 5 before class — free, local, no signup.
Quadratic Equation Solver
This quadratic equation solver handles ax²+bx+c=0 with roots and discriminant shown — real, repeated, or complex. Check x²−5x+6=0 gives 2 and 3 before submission — free, runs locally.
Scientific Calculator
Evaluate mathematical expressions with sin, cos, tan, log, and sqrt functions. A versatile scientific calculator in your browser. No signup or account required.
Last updated October 2026