Math Calculators
Math calculators to quickly perform percentage calculations and other everyday computations.
Circle Area Calculator
Calculate the area, circumference and diameter of a circle from its radius or diameter. Free online circle area calculator.
Date Calculator — Days Between Dates
Free date calculator — calculate the number of days, weeks, months and years between two dates. Quick and easy date difference calculation.
Fraction calculator
Add, subtract, multiply and divide fractions with step-by-step solutions. Simplify fractions and convert mixed numbers — free online fraction calculator.
Paint calculator
Calculate how much paint you need for a room. Enter room dimensions to find total wall area and the amount of paint required in liters.
Percentage calculator
Calculate percentages quickly and accurately. Find what percentage a number is, percentage change, increase or decrease with this free tool.
Mean, Median, Mode Calculator
Calculate the mean, median, and mode of a set of numbers. Free statistics calculator with sum, range, and other descriptive statistics.
Triangle calculator
Triangle calculator – calculate area, perimeter, and angles. Uses Heron's formula, law of cosines, law of sines, and base-height method.
Word & Character Counter
Count words, characters, sentences and paragraphs in your text instantly. Free word counter tool with reading time estimation for writers.