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Free time unit converter. Calculate hours to minutes, minutes to seconds, days to hours, and milliseconds. Exact duration calculations for schedules & science.
Live visual readout for your conversion
| Hour (h) | Minute (min) | Minute (Reverse) | Hour Equivalent | Action |
|---|---|---|---|---|
| 0.1 h | 6.00000 min | 0.1 min | 0.00167 h | |
| 0.5 h | 30.00000 min | 0.5 min | 0.00833 h | |
| 1 h | 60.00000 min | 1 min | 0.01667 h | |
| 2 h | 120.00000 min | 2 min | 0.03333 h | |
| 5 h | 300.00000 min | 5 min | 0.08333 h | |
| 10 h | 600.00000 min | 10 min | 0.16667 h | |
| 20 h | 1,200.00000 min | 20 min | 0.33333 h | |
| 50 h | 3,000.00000 min | 50 min | 0.83333 h | |
| 100 h | 6,000.00000 min | 100 min | 1.66667 h | |
| 500 h | 30,000.00000 min | 500 min | 8.33333 h | |
| 1000 h | 60,000.00000 min | 1000 min | 16.66667 h |
Symbol: ns. Commonly used in: metric.
Symbol: µs. Commonly used in: metric.
Symbol: ms. Commonly used in: metric.
Symbol: s. Commonly used in: si.
Symbol: min. Commonly used in: other.
Every conversion starts with the standard baseline rate between these two units:
Multiply your entered number by the conversion rate to calculate the exact target value:
The result is neatly rounded to your preferred decimal setting so it is clear and ready to use:
| Unit Name | Symbol | System | Conversion Rate | Common Uses |
|---|---|---|---|---|
| Nanosecond | ns | metric | 1 ns = 1.000000 ns | Everyday, home, and school measurements in Time. |
| Microsecond | µs | metric | 1 µs = 1,000.000000 ns | Everyday, home, and school measurements in Time. |
| Millisecond | ms | metric | 1 ms = 1,000,000.000000 ns | Everyday, home, and school measurements in Time. |
| Second | s | si | 1 s = 1,000,000,000.000000 ns | Everyday, home, and school measurements in Time. |
| Minute | min | other | 1 min = 60,000,000,000.000000 ns | Everyday, home, and school measurements in Time. |
| Hour | h | other | 1 h = 3,600,000,000,000.000000 ns | Everyday, home, and school measurements in Time. |
| Day | d | other | 1 d = 86,400,000,000,000.000000 ns | Everyday, home, and school measurements in Time. |
| Week | wk | other | 1 wk = 604,800,000,000,000.000000 ns | Everyday, home, and school measurements in Time. |
| Month (Average 30.44d) | mo | other | 1 mo = 2,629,800,000,000,000.000000 ns | Everyday, home, and school measurements in Time. |
| Year (Julian 365.25d) | yr | other | 1 yr = 31,557,600,000,000,000.000000 ns | Everyday, home, and school measurements in Time. |
Ancient Babylonians divided the day sexagesimally (base 60), giving us 60 minutes in an hour and 60 seconds in a minute.
Calendar months vary from 28 to 31 days; for scientific conversion, an average month is 30.4375 days.
There are exactly 86,400 seconds in a 24-hour day (24 × 60 × 60).
Take the fractional portion and multiply by 60. For example, 4.35 hours = 4 hours and (0.35 × 60) = 21 minutes.
Every calculation uses trusted, standard definitions so your results are 100% accurate for school, home, work, and recipes.
