3 Day (d) to Hour (h)

3 d = 72 h

3 Day equals 72 Hour — that is, 3 d = 72 h. You get there by multiplying the value in Day by 24, the conversion factor between these two Time units. The table below covers the other most-searched values, and the converter accepts any number.

Formula

h = d × 24

d to h conversion table

d	h
1 d	24 h
2 d	48 h
3 d	72 h
5 d	120 h
10 d	240 h
15 d	360 h
20 d	480 h
25 d	600 h
30 d	720 h
50 d	1200 h
75 d	1800 h
100 d	2400 h
150 d	3600 h
200 d	4800 h
500 d	12000 h
1000 d	24000 h

Open the full unit converter Reverse conversion: Hour → Day

Frequently asked questions

How many h are in 3 d?+

3 Day equals 72 Hour, so 3 d = 72 h.

What is the formula to convert d to h?+

Multiply the number of Day by 24. In other words: h = d × 24.

How much is 1 d in h?+

1 Day = 24 Hour (1 d = 24 h).

Is this conversion exact?+

Yes. The factor used is the unit’s official definition; results are rounded to 10 significant digits for readability.

Other common conversions

1 d → h 2 d → h 3 d → h 5 d → h 10 d → h 15 d → h 20 d → h 25 d → h 30 d → h 50 d → h 75 d → h 100 d → h 150 d → h 200 d → h 500 d → h 1000 d → h