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Hours to Seconds

Convert hours to seconds for precise timing calculations. Essential for programming, scientific experiments, and technical applications.

Converting Hours to Seconds

Hours to seconds conversion is crucial in programming, science, and technical fields. Computer timers, API rate limits, and experiments often require time in seconds.

The conversion: 1 hour = 60 minutes × 60 seconds = 3,600 seconds.

Technical Applications

  • Programming - setTimeout, setInterval in milliseconds
  • APIs - Rate limits and token expiration
  • Science - Experiment duration tracking
  • Video production - Timeline calculations
  • Audio engineering - Sample rate calculations

Reference Table

HoursSeconds
0.51,800
13,600
27,200
828,800
1243,200
2486,400

How to Convert Hours to Seconds

Steps

  1. Enter hours in the input
  2. See seconds calculated instantly
  3. Copy for your code or calculations

The Formula

Seconds = Hours × 3,600

Examples

  • 2 hours: 2 × 3,600 = 7,200 seconds
  • 8 hours: 8 × 3,600 = 28,800 seconds
  • 0.5 hours: 0.5 × 3,600 = 1,800 seconds

Programming Context

For JavaScript timers (which use milliseconds):

  • 1 hour = 3,600,000 ms
  • Seconds × 1000 = milliseconds

Features

Precise Calculation

Exact multiplication by 3,600 - no rounding errors.

Instant Results

Seconds appear immediately as you type hours.

Bidirectional

Swap to convert seconds back to hours.

Copy Ready

Copy results directly into code, spreadsheets, or documentation.

Reference Table

Common hour-to-second conversions displayed.

Developer Friendly

  • Clean numbers - Easy to copy into code
  • High precision - Decimal hours supported
  • No dependencies - Works offline

Frequently Asked Questions

How many seconds in 1 hour?

1 hour equals exactly 3,600 seconds (60 minutes × 60 seconds).

How many seconds in 24 hours?

24 hours equals 86,400 seconds. This is one full day in seconds.

How do I use this for JavaScript setTimeout?

Multiply seconds by 1000 for milliseconds. For 1 hour: 3,600 × 1000 = 3,600,000 ms.

How many seconds in an 8-hour workday?

8 hours equals 28,800 seconds.

Why is 3600 the magic number?

It's 60 × 60. There are 60 seconds in a minute and 60 minutes in an hour, giving 3,600 seconds per hour.

What's 30 minutes in seconds?

30 minutes (0.5 hours) equals 1,800 seconds.

h
s

Sports & Racing

0.5 h=1,800 s
1 h=3,600 s
1.5 h=5,400 s
2 h=7,200 s
3 h=10,800 s
4 h=14,400 s

Hour (h)

Equal to 60 minutes or 3,600 seconds. The primary unit for daily scheduling and work time.

Second (s)

Essential in sports timing where fractions of seconds determine winners. Used in racing, swimming, and athletics.

Multiply hours by 3600 for seconds
Essential for programming timers
1 hour = 3,600 seconds
Used in scientific experiments
Want to learn more? Read documentation →
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