HH:MM:SS to Seconds Converter - Free, Instant, In Your Browser
Enter a value in HH:MM:SS to get the equivalent in Seconds (e.g. 1:01:01 = 3661).
How to use HMS → SECONDS
- 1Paste your text or data into the input box above.
- 2HMS → SECONDS runs instantly, right in your browser.
- 3Copy the result or use it directly.
Your file is only processed temporarily for the conversion and is automatically deleted within 24 hours.
Frequently Asked Questions
How does the conversion work?
Seconds are split into hours, minutes, and remaining seconds (or the reverse: each unit is multiplied back into total seconds).
What format should I enter?
HH:MM:SS or MM:SS for a duration, or a plain number of seconds - the tool accepts either.