Hours to Seconds Converter

Enter hours to calculate total seconds.

Hours type here

Seconds or here

Converted value

—

Seconds

—

—1 Hours → Seconds

—1 Seconds → Hours

LiveTwo-way conversion

All units

Precision, factor & reference table

Display precision

1 Hours = 3600 Seconds

Hours	Seconds
1	3600
2	7200
5	18000
10	36000
20	72000
50	180000
100	360000

Build custom table

Core timing workflows

Start with a direct timer, stopwatch, alarm or focus workflow. Calendar, date arithmetic, clocks and scheduling specialists remain available from the full Date & Time hub.

All 76 date & time tools

Online TimerCountdown, sound, repeat & fullscreen StopwatchLaps, precision & fullscreen Countdown TimerFocused countdown workflow Alarm ClockAlarm at a local clock time PomodoroFocus and break cycles Interval TimerWork/rest rounds Presentation TimerTalk timing with warnings Classroom TimerProjector-friendly countdown

How to use this Hours to Seconds Converter

Type a value in either Hours or Seconds. The other field updates immediately, so you can work in either direction without a separate Convert step.

Conversion factor

1 Hours = 3600 Seconds. Display rounding changes only what is shown; the declared factor remains the calculation basis.