Hours to Seconds converter
Convert hours (h) to seconds (s). Exact: 1 h = 3600 s.
Converter tool
Formula: s = h × 3600
Quick examples
| Hours | Seconds |
|---|---|
| 0.25 | 900.0 |
| 0.5 | 1800.0 |
| 1 | 3600 |
| 2 | 7200 |
| 3 | 10800 |
| 4 | 14400 |
| 8 | 28800 |
| 24 | 86400 |
How to convert Hours to Seconds
Formula: s = h × 3600.
Reverse conversion: h = s ÷ 3600
Tip: Use the swap button to reverse the calculation instantly.
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Hours → Seconds FAQs
What definitions are used?
Exact: 1 min = 60 s; 1 h = 60 min; 1 d = 24 h; 1 wk = 7 d. For years we use 365 d = 1 yr.
How do I go the other way?
h = s ÷ 3600
Are the results rounded?
Calculations use exact constants; values are displayed with sensible rounding for readability.