Hours to Decimal Calculator
Convert hours and minutes (h:mm or h:mm:ss) into decimal hours and total minutes for payroll and billing.
Your inputs
Results
Decimal hours
7.75
- Total minutes
- 465
- Rounded to hundredths (payroll style)
- 7.75
✓Exact calculation — rounded only for display
What this calculator does
Payroll and invoicing usually need decimal hours: 7 hours 45 minutes is 7.75 hours.
Formula and method
Decimal hours = hours + minutes ÷ 60 + seconds ÷ 3600
Worked example
Calculated by this tool with its default inputs:
Inputs
- Time (h:mm or h:mm:ss): 7:45
Results
- Decimal hours: 7.75
- Total minutes: 465
- Rounded to hundredths (payroll style): 7.75
How to read the results
Rounded to hundredths for payroll-style figures.
Assumptions and limitations
- Check whether your employer rounds to quarter hours.
Questions
What is 15 minutes in decimal?
0.25 hours.
Methodology and verification
- Result type
- Exact mathematical calculation (rounded only for display)
- Formula version
- 1.0
- Automated verification
- 3 reference and validation test cases, checked against independently computed values. The site cannot be built if any of them fail.
- Editorial review
- Awaiting human editorial review. The explanation was drafted with AI assistance; the formula and examples are verified by the automated tests above.
Privacy
Everything you enter is calculated in this browser and is not sent to Numerith or anyone else. Inputs are added to a share link only if you choose to include them. Privacy policy