Unit Converter
Conversion formula
The conversion factor from hours to minutes is 60, which means that 1 hour is equal to 60 minutes:
1 hr = 60 min
To convert 4.5 hours into minutes we have to multiply 4.5 by the conversion factor in order to get the time amount from hours to minutes. We can also form a simple proportion to calculate the result:
1 hr → 60 min
4.5 hr → T(min)
Solve the above proportion to obtain the time T in minutes:
T(min) = 4.5 hr × 60 min
T(min) = 270 min
The final result is:
4.5 hr → 270 min
We conclude that 4.5 hours is equivalent to 270 minutes:
4.5 hours = 270 minutes
Alternative conversion
We can also convert by utilizing the inverse value of the conversion factor. In this case 1 minute is equal to 0.0037037037037037 × 4.5 hours.
Another way is saying that 4.5 hours is equal to 1 ÷ 0.0037037037037037 minutes.
Approximate result
For practical purposes we can round our final result to an approximate numerical value. We can say that four point five hours is approximately two hundred seventy minutes:
4.5 hr ≅ 270 min
An alternative is also that one minute is approximately zero point zero zero four times four point five hours.
Conversion table
hours to minutes chart
For quick reference purposes, below is the conversion table you can use to convert from hours to minutes
hours (hr) | minutes (min) |
---|---|
5.5 hours | 330 minutes |
6.5 hours | 390 minutes |
7.5 hours | 450 minutes |
8.5 hours | 510 minutes |
9.5 hours | 570 minutes |
10.5 hours | 630 minutes |
11.5 hours | 690 minutes |
12.5 hours | 750 minutes |
13.5 hours | 810 minutes |
14.5 hours | 870 minutes |