HH:MM:SS → hours, minutes, seconds.
A precise duration converter. Type a duration; read the equivalent in hours, minutes, and seconds. Free, no sign-up, runs in your browser.
Result
| Input | Meaning | In seconds |
|---|---|---|
| one minute | 60 | |
| half hour | 1,800 | |
| one hour | 3,600 | |
| two and a half hours | 9,000 | |
| one day | 86,400 |
About this tool
Built for video editors marking cuts, athletes splitting laps, podcasters logging timecodes, developers handling ISO 8601 durations, and anyone tired of opening the calculator to multiply by 3600. The math is trivial; the friction was the problem.
Questions
How do I convert HH:MM:SS to seconds?
Multiply hours by 3600, minutes by 60, and add the seconds. Example: 01:30:45 = 3600 + 1800 + 45 = 5,445 seconds.
How do I convert HH:MM:SS to minutes?
Multiply hours by 60, add minutes, then add seconds divided by 60. Example: 01:30:45 = 60 + 30 + 0.75 = 90.75 minutes.
Does this run offline?
Yes. The conversion runs entirely in your browser with plain JavaScript. Nothing is sent to a server.
Who made it?
HiveCode. Same team behind a few other small tools at hivecode.cloud.