Hours to Seconds Converter

What is Hours to Seconds Converter?

A quick, exact conversion between hours and seconds (1 hour = 3,600 seconds), useful for working out timeouts, durations, or scheduling values that need to be expressed in seconds. Comes up often in code that expects a duration in seconds (a cache TTL, a cron interval, an API timeout) when you're thinking in hours. Both fields update live as you type, in either direction, entirely in your browser.

Hours to Seconds Converter Table

How to Use the Hours to Seconds Converter

1. 1

   Type a Value: Enter a value in either the hours or seconds field.

2. 2

   Read the Converted Result Instantly: The other field updates automatically as you type.

Hours to Seconds Formula

seconds = hours × 3600 Reverse: hours = seconds ÷ 3600

Common Hours to Seconds Conversions

1 hour = 3,600 seconds 2 hours = 7,200 seconds 0.5 hours (30 minutes) = 1,800 seconds 8 hours (a workday) = 28,800 seconds 24 hours = 86,400 seconds

How to Convert Hours to Seconds

Multiply the number of hours by 3,600, the number of seconds in one hour. For a value given in minutes instead, multiply the minutes by 60 directly, or convert to hours first (divide by 60) and then multiply by 3,600.

Hours to Seconds Examples

A cache that should expire after 2 hours needs a TTL of 2 × 3,600 = 7,200 seconds. A cron interval described as "every 0.25 hours" (15 minutes) is 0.25 × 3,600 = 900 seconds. 90,000 seconds converts back to 90,000 ÷ 3,600 = 25 hours.