⏰ Hours to Seconds
Break down hours into seconds for precise timing.
Ideal for automation scripts, electronics timing, and any scenario where you need exact seconds or microseconds from hour-based durations.
1.5 hours equals
5,400 seconds
Minutes: 90
Microseconds: 5,400,000,000
How to Use This Calculator
Enter hours
Type the duration in hours (decimals allowed).
Read seconds
The converter multiplies by 3,600 to produce the total seconds.
Check minutes & microseconds
Additional values support intermediate precision and high-resolution timing.
Formula
Seconds = Hours × 3,600
Minutes = Hours × 60
Microseconds = Hours × 3,600,000,000
Use the formula breakdown to confirm the calculation logic or perform the conversion manually if needed.
Full Description
When configuring schedules, electronics, or code that requires raw seconds, converting from hours manually is both tedious and error-prone. This tool handles the math instantly and adds derived units for convenience.
Decimals are supported, making partial hours straightforward to convert into exact seconds and microseconds.
Pair it with the hour converter for reverse conversions or to compare against larger units like days and weeks.
Frequently Asked Questions
Can the result exceed JavaScript precision?
Very large hour values may exceed integer precision when converted to microseconds. For extreme values, use scientific notation or arbitrary-precision libraries.
Does it handle negative durations?
Negative hours convert mathematically, representing negative seconds as expected.
What about milliseconds?
Milliseconds are the seconds value multiplied by 1,000. Adjust the formula section if you need to display them explicitly.
Can I convert seconds back to hours?
Divide seconds by 3,600, or use the hour converter to handle the reverse direction.