Hours to Minutes Converter
1 hour = 60 minutes
Conversion formula
minutes = hours x 60
To convert hours to minutes, multiply by 60. This derives from the ancient Babylonian base-60 (sexagesimal) number system, which divided the hour into 60 minutes.
Hours to Minutes Table
| Hours (h) | Minutes (min) |
|---|---|
| 0.25 | 15 |
| 0.5 | 30 |
| 0.75 | 45 |
| 1 | 60 |
| 1.5 | 90 |
| 2 | 120 |
| 4 | 240 |
| 8 | 480 |
| 12 | 720 |
| 24 | 1,440 |
1 hour in every time unit
| Seconds | 3,600 s |
| Milliseconds | 3,600,000 ms |
| Microseconds | 3,600,000,000 us |
| Nanoseconds | 3.6e+12 ns |
| Minutes | 60 min |
| Days | 0.0416667 d |
| Weeks | 0.00595238 wk |
| Months | 0.00136893 mo |
| Years | 0.000114077 yr |
| Decades | 0.0000114077 dec |
| Centuries | 0.00000114077 cent |
About Hours to Minutes
The hours-to-minutes conversion is one of the most basic time calculations, but it's used constantly in scheduling, payroll, cooking, and project management.
Payroll is a key application. An 8-hour workday is 480 minutes. If an employee works 7 hours 45 minutes, that's 7.75 hours or 465 minutes. Time tracking software often requires decimal hours: 15 minutes = 0.25 hours, 30 minutes = 0.5 hours, 45 minutes = 0.75 hours.
Cooking times use this conversion regularly. A Thanksgiving turkey needs about 3.5-4 hours (210-240 minutes) for a 12-14 pound bird. Bread rises for 1-2 hours (60-120 minutes). A slow cooker recipe running 8 hours is 480 minutes.
In aviation, flight times are critical. A 2.5-hour domestic flight is 150 minutes. The longest commercial flight (Singapore to New York) is about 18.5 hours or 1,110 minutes. Pilot duty limits are tracked in both hours and minutes for safety regulations.
For exercise and fitness, training plans often mix hours and minutes. A marathon time of 3:45:30 is 225.5 minutes (or 225 minutes 30 seconds). A 1.5-hour gym session is 90 minutes.
There are exactly 1,440 minutes in a day (24 x 60), 10,080 in a week, and roughly 525,960 in a year. The average human lifespan of 73 years is about 38.4 million minutes.
Frequently Asked Questions
How many minutes in an hour?
There are exactly 60 minutes in 1 hour. This has been the standard since ancient Babylonian times, based on their base-60 number system.
How do I convert decimal hours to minutes?
Multiply the decimal part by 60. For example, 2.75 hours = 2 hours + (0.75 x 60) = 2 hours 45 minutes = 165 minutes total.
How many minutes in a day?
There are 1,440 minutes in a day (24 hours x 60 minutes). This is useful for time management and scheduling calculations.
How do I convert 7 hours 45 minutes to decimal hours?
Divide the minutes by 60 and add to the hours: 45/60 = 0.75, so 7 hours 45 minutes = 7.75 hours. For payroll, this means 7.75 billable hours.