Math
Fast calculators for percentages, discounts and other everyday math operations.
Percentage calculator
Find the % of an amount, what % one number is of another, or the percentage change between two values.
Discount calculator
Calculate the final price and how much you save when applying a discount.
Rule of Three Calculator
Calculate direct or inverse proportions between three known values and one unknown.
Fraction Calculator
Add, subtract, multiply or divide two fractions and get the simplified result.
Weighted Average Calculator
Calculate the weighted average of up to four values with their respective weights.
Successive Discounts Calculator
Calculate the final price when applying several successive discounts to the same price.
GCF and LCM calculator
Calculate the greatest common factor (GCF) and least common multiple (LCM) of two numbers.
Statistics calculator (mean, median, mode)
Calculate the mean, median, mode, range and standard deviation of a set of numbers.