Math Calculators

Percentages, fractions, ratios, averages, exponents and more — every result explained step by step.

All Math Calculators 10

Find what X% of a number is, what percent one number is of another, and percentage increase or decrease — with steps.

Add, subtract, multiply and divide fractions. Results are automatically simplified and shown with steps and decimal form.

Simplify ratios to lowest terms or solve for the missing value in equivalent ratios like A:B = C:D.

Solve proportions by cross-multiplication: enter three known values of a/b = c/d and find the fourth instantly, with steps.

Round any number to the nearest whole number, tenth, hundredth, thousandth or any decimal place — with the rounding rule explained.

Find the square root of any number, including simplified radical form for whole numbers (√48 = 4√3) and step-by-step working.

Calculate powers like 2⁸ or 5⁻³, including negative and fractional exponents, with the exponent rules explained.

Find the greatest common factor and least common multiple of two or more numbers, with prime factorizations shown.

Free online scientific calculator with trig (degrees or radians), logarithms, powers, roots, π and parentheses — keyboard friendly.

Add, subtract and multiply matrices up to 5×5, and find the determinant, inverse and transpose — with dimension rules explained.