15 Minutes as a Decimal

How to convert 15 minutes to decimal hours

The formula is:

Minutes ÷ 60 = decimal hours

For 15 minutes:

15 ÷ 60 = 0.25

Therefore: 15 minutes = 0.25 decimal hours

15 minutes on a timesheet

If you are converting a full working time, keep the whole hours and add the decimal value of the minutes.

For example: 7 hours 15 minutes

15 minutes = 0.25 hours

So: 7h 15m = 7.25 hours

Another example: 8 hours 15 minutes = 8.25 hours

This format is commonly useful when working with timesheets, payroll, shift records or other systems that use decimal hours.

Why 15 minutes is not 0.15 hours

A common mistake is to assume that 15 minutes can simply be written as 0.15 hours.

It cannot.

15 minutes ≠ 0.15 hours

To see why, convert 0.15 hours back into minutes:

0.15 × 60 = 9

So: 0.15 hours = 9 minutes

The correct decimal value for 15 minutes is 0.25 hours.

15 minutes is a quarter of an hour

Another simple way to understand the conversion is to think of 15 minutes as a fraction of an hour.

An hour contains 60 minutes.

15 minutes is one quarter of 60 minutes.

So: 15 minutes = ¼ hour

One quarter written as a decimal is 0.25.

Therefore: 15 minutes = 0.25 hours

Check the conversion

You can check the answer by converting the decimal back into minutes.

0.25 × 60 = 15

So: 0.25 hours = 15 minutes

This confirms that the conversion is correct.

Decimal hours conversion chart

Use this quick-reference chart to convert common minute values into decimal hours.

Some minute values produce repeating decimals, so figures such as 10, 20, 40 and 50 minutes are shown rounded to two decimal places.

For a full reference covering every minute from 1 to 60, see our Minutes to Hundredths of an Hour Chart.