Math & Everyday Calculators

Percentages, fractions, dates, ages, grades and general maths.

11 calculators. Your details are shared across all of them.

Percentage Calculator

Work out a percentage of a number, what percentage one number is of another, and increases or decreases.

Find the percentage increase or decrease between two numbers, plus the ratio and absolute difference.

Add, subtract, multiply and divide fractions, with the result simplified and shown as a decimal.

Work out your exact age in years, months and days, plus total days lived and your next birthday.

Count the days, weeks, months and working days between any two dates.

Find the mean, median, mode, range and standard deviation of a list of numbers.

Simplify a ratio to its lowest terms, convert it to a fraction and percentage, and scale it up.

Calculate a credit-weighted grade point average from your grades and course credits.

Find the score you need on a final exam to reach the overall grade you want.

Work out a sale price, how much you save, and what a stacked second discount actually comes to.

Calculate a tip, the total bill, and what each person owes when splitting it.