Hours to Seconds Converter
1 hour = 3,600 seconds
1 hour equals 3,600 seconds
How to convert hours to seconds
A day here is a duration of 86,400 seconds. Unless explicitly labeled Julian, months and years use the mean Gregorian convention (365.2425 days per year; one twelfth per month), rather than the actual length of a particular calendar interval.
s = h × 3600One hour is 3600 seconds, so a single multiplication converts any value.
36,000 s = 10 × 3600Hours to seconds conversion table
Common values in hours, converted to seconds.
| Hours (h) | Seconds (s) |
|---|---|
| 1 | 3,600 |
| 2 | 7,200 |
| 5 | 18,000 |
| 10 | 36,000 |
| 15 | 54,000 |
| 30 | 108,000 |
| 60 | 216,000 |
| 90 | 324,000 |
| 120 | 432,000 |
About these units
hourh
Exactly 60 minutes, or 3,600 seconds.
seconds
The SI base unit of time, defined by the caesium-133 hyperfine transition frequency.
Reference: BIPM SI Brochure (9th ed.).
Sources and precision
Table results are rounded to 8 significant digits; formula constants may be rounded to 10. Worked example answers use 6 significant digits. The converter starts at 6 significant digits and lets you change display precision. Calculations use the stored factors without intermediate rounding. Exact unit definitions do not make an input measurement more precise; conventional and measured factors follow the assumptions stated here.