Hours to Minutes Converter
1 hour is exactly 60 minutes. To convert hours to minutes, multiply by 60.
Sources: NIST SP 811, BIPM SI Brochure Updated
Result
1.5 h = 90 min
How to convert hours to minutes
minutes = hours × 60
1 hour is exactly 3,600 seconds (60 minutes). 1 minute is exactly 60 seconds.
The factor 60 is exact, not a rounded value. Nothing is rounded until you choose how many decimals to show.
Worked example: 2.5 h
- Start with the value in hours: 2.5 h.
- Multiply by 60, because 1 hour = 60 minutes: 2.5 × 60 = 150 min.
Hours and minutes side by side
Hours to minutes chart
Hours from 0.1 to 24 converted to minutes with the exact factor, shown to five significant digits.
| h | min |
|---|---|
| 0.1 | 6 |
| 0.2 | 12 |
| 0.25 | 15 |
| 0.3 | 18 |
| 0.4 | 24 |
| 0.5 | 30 |
| 0.6 | 36 |
| 0.7 | 42 |
| 0.75 | 45 |
| 0.8 | 48 |
| 0.9 | 54 |
| 1 | 60 |
| 1.25 | 75 |
| 1.5 | 90 |
| h | min |
|---|---|
| 1.75 | 105 |
| 2 | 120 |
| 2.5 | 150 |
| 3 | 180 |
| 4 | 240 |
| 5 | 300 |
| 6 | 360 |
| 7 | 420 |
| 7.5 | 450 |
| 8 | 480 |
| 9 | 540 |
| 10 | 600 |
| 12 | 720 |
| 24 | 1,440 |
minutes = hours × 60. Factors: NIST SP 811, BIPM SI Brochure. unitcheck.net/time/hours-to-minutes/
Decimal hours on a timesheet
Timesheets often record hours as decimals. To read 7.75 hours as clock time, keep the 7 hours and multiply the fraction by 60: 0.75 × 60 = 45 minutes, so 7.75 h is 7 h 45 min, or 465 minutes in total. The decimal to time converter does this in both directions.
Going the other way? Use the Minutes to Hours converter.
Frequently asked questions
How many minutes are in 1 hour?
1 hour is exactly 60 minutes. 1 minute is exactly 60 seconds.
How do I convert hours to minutes?
Multiply by 60: minutes = hours × 60. For example, 2.5 h = 150 min.
How many hours are in 1 minute?
1 minute is about 0.0166667 hours. To go the other way, use the minutes to hours converter.
Is the h to min conversion exact?
Yes. 1 minute is exactly 60 seconds. The factor 60 follows from the definitions, so the only rounding is in the number of decimals you display.
How do I read the result in minutes and seconds?
The line under the result splits it for you: the whole minutes stay as they are and the decimal part is converted to seconds. For example, 2.5 h is 150 min 0 s.
Sources
- NIST Special Publication 811, Guide for the Use of the International System of Units, Appendix B.8: Factors for Units Listed Alphabetically — exact factors are printed in bold in the NIST table (checked October 12, 2026)
- BIPM, The International System of Units (SI Brochure), 9th edition — defines the SI units, the prefixes and the units accepted for use with the SI