Math Calculators
Calculators you can check. Every answer is worked out to 40 digits, and the reference results are public.
Scientific calculatorFree online scientific calculator with exact answers: trig in degrees, radians or grads, logs, powers, factorials and fractions, accurate to 40 digits.Open the calculator →Percentage calculatorWork out what percent of a number another is, a percentage of a value, the percentage increase, decrease or difference between two figures, with the working.Open the calculator →Fraction calculatorAdd, subtract, multiply and divide fractions and mixed numbers with every step shown, simplify to lowest terms and convert between fractions and decimals.Open the calculator →