Calculators

Practical number and date calculators with instant browser-local results.

Age Calculator

Calculate exact age, total months, weeks, days and the next birthday.

Calculate a percentage of any number instantly.

Find the percentage increase or decrease between two values.

Calculate sale price and savings from an original price and discount.

Calculate a tip, total bill and amount per person.

Find the mean, sum, minimum and maximum of a number list.

Simplify a two-number ratio to its lowest whole-number terms.

Convert a fraction into a decimal and percentage.

Convert a terminating decimal into a simplified fraction.

Compare package value by calculating price per unit.

Calculate gross profit and margin from cost and selling price.

Calculate selling price from cost and markup percentage.

Generate an unbiased random whole number within a chosen range.

Calculate the exact elapsed years, months and days between two dates.

Count the exact number of calendar days between two dates.

Count weekdays between two dates, excluding Saturdays and Sundays.

Find how many days remain until your next birthday.

Calculate elapsed hours and minutes between two times.