Rex says
Everyday utility math — the kind you'd otherwise pull up four browser tabs for. I keep it to one clean answer.
Try a scenario
Click to load — tweak from there.Inputs
Result
Duration
8h 30m
Total hours
8.50
Total minutes
510
Psst — share this and help Rex grow
One click, a permanent link with your numbers baked in.
How to use this
- 1Enter start hour.
- 2Enter start minute.
- 3Enter end hour.
- 4Enter end minute.
- 5Read your duration on the right — it updates as you type.
- 6Hit Share to keep the scenario or send it to someone.
About this calculator
Enter start and end times in 24-hour format to get the duration.