On this page is an age in seconds calculator. Enter your birthday and we'll instantly tell you how many seconds […]

On this page is an age in hours calculator. Enter your birthday and we'll instantly tell you how many hours […]

Below is an age difference calculator. Enter the birth dates for two people, and we'll show you their age difference […]

Below is a month between dates calculator. Enter a start date and an end date and we'll return the number […]

Below is a week between dates calculator. Enter a start date and an end date and we'll return the number […]

Below is a minutes calculator. Enter a start and end time and we'll instantly show you the minutes between them […]

Below is a years between calculator or a years difference calculator. Enter a start date and an end date and […]

Below is an hours calculator. Use the easy-to-enter inputs and enter a starting time and an ending time, and optionally […]

When was 3 fortnights ago? This fortnights ago calculator subtracts any number of 2-week periods to find a past date. […]

Use this segment area calculator to find the area between a chord and its arc from the radius and central […]