Math Calculators
Free math calculators for percentages, fractions, statistics, GPA, grades, and everyday arithmetic. Get exact answers instantly with clear, step-friendly tools.
8 free math calculators
Percentage Calculator
Calculate any percentage in seconds. Find what percent one number is of another, work out percentage increase or decrease, and solve percentage-of problems.
Discount Calculator
Calculate the sale price after a discount and see exactly how much you save. Works with percent off, dollar off, stacked discounts, and added sales tax.
GPA Calculator
Calculate your GPA for a semester or cumulative record. Enter each course grade and credit hours to find your Grade Point Average on the standard 4.0 scale.
Unit Price Calculator
Calculate and compare unit prices to find the best deal fast. Compare products of different sizes and prices to see which one offers the best value per unit.
Sales Tax Calculator
Calculate sales tax for any purchase. Enter the price and tax rate to find the total cost, or work backwards from the total to find the pre-tax price.
School Grade Calculator
Free school grade calculator: find your current grade and the mark or score you need on the final exam. Enter assignment scores and weights for any class.
Statistics Calculator
Calculate mean, median, mode, range, variance, and standard deviation for any dataset. A free statistics calculator with clear, step-by-step results shown.
Fraction Calculator
Calculate fractions with step-by-step solutions. Add, subtract, multiply, or divide fractions and mixed numbers, then simplify the answer to its lowest terms.