Hours and Minutes to Decimal
Convert a duration in hours, minutes and seconds into decimal hours.
Results
Hours
7.75000
h
Minutes
465.000
min
Seconds
27,900
s
What this tool does
Seven hours forty-five minutes is 7.75 hours, not 7.45 — the single most common mistake on a timesheet. This converts a duration into the decimal form that payroll and spreadsheets expect.
Formula
decimal = h + m ÷ 60 + s ÷ 3600
Variables
| Symbol | Meaning | Unit |
|---|---|---|
h | Hours | — |
m | Minutes | — |
s | Seconds | — |
D | Hours | h |
M | Minutes | min |
S | Seconds | s |
Worked example
- Hours7
- Minutes45
- Seconds0
- Hours7.75000 h
- Minutes465.000 min
- Seconds27,900 s
Limitations
- The calculation runs at full precision and only the display is rounded. If you copy an intermediate value and retype it, small differences can appear.