## 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 21 hours into minutes we have to multiply 21 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

21 hr → T(min)

Solve the above proportion to obtain the time T in minutes:

T(min) = 21 hr × 60 min

T(min) = 1260 min

The final result is:

21 hr → 1260 min

We conclude that 21 hours is equivalent to 1260 minutes:

21 hours = 1260 minutes

## Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 minute is equal to 0.00079365079365079 × 21 hours.

Another way is saying that 21 hours is equal to 1 ÷ 0.00079365079365079 minutes.

## Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that twenty-one hours is approximately one thousand two hundred sixty minutes:

21 hr ≅ 1260 min

An alternative is also that one minute is approximately zero point zero zero one times twenty-one 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)
22 hours 1320 minutes
23 hours 1380 minutes
24 hours 1440 minutes
25 hours 1500 minutes
26 hours 1560 minutes
27 hours 1620 minutes
28 hours 1680 minutes
29 hours 1740 minutes
30 hours 1800 minutes
31 hours 1860 minutes