Free Math and date calculators

Percentages, ages, date differences, GPA, fractions and a full scientific calculator, all in plain language.

8 tools

Percentage Calculator

Work out percentages, percentage change and percent of a number.
Age Calculator

Calculate exact age in years, months and days from a birth date.
GPA Calculator

Calculate your grade point average from courses and credits.
Grade Calculator

Find your weighted grade and what you need on the final exam.
Date Difference Calculator

Count the days, weeks and months between two dates.
Fraction Calculator

Add, subtract, multiply and divide fractions with steps.
Scientific Calculator

A full scientific calculator with trig, logs and powers.
Random Number Generator

Pick random numbers in any range, with or without repeats.

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