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UK Decimal Hours Calculator
Payroll systems usually want time as a decimal — 7 hours 30 minutes becomes 7.5. This converter works in both directions.
Switch the conversion mode to go from hours and minutes to decimal, or from a decimal figure back to hours and minutes.
UK Decimal Hours Calculator
Results update as you type. Nothing you enter is stored.
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How to use this calculator
- Choose the direction of the conversion.
- Enter hours and minutes, or a decimal value, depending on the mode.
- Copy the result straight into your timesheet.
How the calculation works
- To decimal: minutes ÷ 60, added to the whole hours. 45 minutes ÷ 60 = 0.75.
- From decimal: the fractional part × 60 gives the minutes. 0.25 × 60 = 15 minutes.
- Results are rounded to two decimal places, which matches most payroll software.
Example calculation
Inputs
- 7 hours 30 minutes
Result
- 7.50 decimal hours
- 450 minutes
Things to keep in mind
- Some decimal values do not convert to whole minutes — 7.33 hours is 19 minutes and 48 seconds, shown rounded to the nearest minute.
- Always use the rounding your employer's payroll system expects.
- These results are for general guidance. See our disclaimer — this is not legal, tax or financial advice.
Frequently asked questions
What is 45 minutes in decimal hours?
0.75 hours, because 45 ÷ 60 = 0.75.
What is 7.75 hours in hours and minutes?
7 hours 45 minutes.
Why do timesheets use decimal hours?
Decimal hours multiply cleanly by an hourly rate, so payroll systems avoid converting minutes at every step.
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