Math Calculators

Everyday math made simple — with the formulas and worked examples to back it up.

+ Average Calculator Free average calculator. Find the mean, median, mode, and range of any set of numbers. Also shows sum and count. No sign-up. + Fraction Calculator Free fraction calculator. Add, subtract, multiply, and divide fractions with step-by-step results. Simplifies automatically. No sign-up. + GPA Calculator Free GPA calculator. Calculate your Grade Point Average on a 4.0 scale. Add courses, credits, and grades. Instant results. No sign-up. + Grade Calculator Free grade calculator. Calculate your final grade from current grade and exam weight. Find what score you need on the final to reach your target. + Percentage Calculator Free percentage calculator. Find X% of Y, what percent X is of Y, and percentage increase or decrease. Instant results, no sign-up. + Ratio Calculator Free ratio calculator. Simplify ratios, solve proportions, and scale ratios. Enter two or three values to find the missing one. No sign-up. + Scientific Calculator Free scientific calculator online. Perform calculations with trigonometry, logarithms, exponents, square roots, factorials, π, and e. No sign-up, works in browser.

Everyday Math, Simplified

Our math calculators handle the calculations you reach for most — percentages, fractions, averages and more — with clear formulas and step-by-step examples so the answer always makes sense.