How do I convert Hour (h) to Second (s)?

1 h equals 3600 s using SI-based conversion and precise factors.

What is the formula to convert Hour (h) to Second (s)?

This is a linear unit conversion using a constant factor between units.

Yes, it uses exact definitions or standardized constants (e.g., 1 in = 25.4 mm).

Use the shareable URL pattern: /convert/h-to-s/1

Category: Time

Value From To Precision

3600 s

1 h = 3600 s

High-precision rounding: 6 decimals

We convert by pivoting through the SI base unit for Time and applying exact factors where applicable.

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Timekeeping blends SI seconds with civil conventions.

Hour (h)

60 minutes; 3,600 s.

History: Adopted globally in civil timekeeping.

Second (s)

SI base unit of time; defined via cesium-133.

History: Modern definition from atomic transitions.