## Conversion formula

The conversion factor from days to hours is 24, which means that 1 day is equal to 24 hours:

1 d = 24 hr

To convert 13 days into hours we have to multiply 13 by the conversion factor in order to get the time amount from days to hours. We can also form a simple proportion to calculate the result:

1 d → 24 hr

13 d → T(hr)

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

T(hr) = 13 d × 24 hr

T(hr) = 312 hr

The final result is:

13 d → 312 hr

We conclude that 13 days is equivalent to 312 hours:

13 days = 312 hours

## Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 hour is equal to 0.0032051282051282 × 13 days.

Another way is saying that 13 days is equal to 1 ÷ 0.0032051282051282 hours.

## Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that thirteen days is approximately three hundred twelve hours:

13 d ≅ 312 hr

An alternative is also that one hour is approximately zero point zero zero three times thirteen days.

## Conversion table

### days to hours chart

For quick reference purposes, below is the conversion table you can use to convert from days to hours

days (d) hours (hr)
14 days 336 hours
15 days 360 hours
16 days 384 hours
17 days 408 hours
18 days 432 hours
19 days 456 hours
20 days 480 hours
21 days 504 hours
22 days 528 hours
23 days 552 hours