Math Calculators
From homework to the office: a full scientific calculator, step-by-step fraction maths, percentage change, standard deviation and a triangle solver. Fast, keyboard-friendly and free.
6 free calculators
Scientific Calculator
Full-featured scientific calculator with trigonometry, logarithms, powers, and history log.
Fraction Calculator
Add, subtract, multiply, and divide fractions with step-by-step solutions and simplified results.
Percentage Calculator
Calculate percentages in three modes: X% of Y, X is what % of Y, and percentage change.
Random Number Generator
Generate random numbers within a custom range, with or without duplicates, any quantity.
Triangle Calculator
Solve any triangle by SSS, SAS, ASA, or AAS — find all sides, angles, area, and perimeter.
Standard Deviation Calculator
Calculate population and sample standard deviation, variance, mean, and more from a data set.