Everyday Calculators

Age, dates, GPA, tips, discounts and the practical calculations that come up in daily life.

All Everyday Calculators 8

Calculate exact age in years, months and days from a date of birth, plus total days lived and days until your next birthday.

Count the days, weeks, months and years between any two dates — for deadlines, events, projects and anniversaries.

Work out the tip and total for any bill, split evenly between any number of people — with common tipping percentages explained.

Find the sale price and savings for any discount, including stacked double discounts like an extra 20% off a 30%-off price.

Generate one or many random numbers in any range — whole numbers or decimals, with or without repeats.

Add or subtract hours, minutes and seconds — get the total as clock time and as decimal hours for timesheets.

Work out your weighted course grade from assignments and exams — and the score you need on the final to hit your target.

Calculate your grade point average on the 4.0 scale from course grades and credit hours — add as many courses as you need.