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 18 days into hours we have to multiply 18 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

18 d → T(hr)

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

T(hr) = 18 d × 24 hr

T(hr) = 432 hr

The final result is:

18 d → 432 hr

We conclude that 18 days is equivalent to 432 hours:

18 days = 432 hours

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 hour is equal to 0.0023148148148148 × 18 days.

Another way is saying that 18 days is equal to 1 ÷ 0.0023148148148148 hours.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that eighteen days is approximately four hundred thirty-two hours:

18 d ≅ 432 hr

An alternative is also that one hour is approximately zero point zero zero two times eighteen 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)
19 days 456 hours
20 days 480 hours
21 days 504 hours
22 days 528 hours
23 days 552 hours
24 days 576 hours
25 days 600 hours
26 days 624 hours
27 days 648 hours
28 days 672 hours