Hours to days
days = hours × 0.04166667
Reverse: days to hours
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How to convert hours to days
One hour is 0.04166667 days, so multiply the number of hours by 0.04166667. For example, 20 hours is 20 × 0.04166667 = 0.83333333 days. To go back, divide by the same number, or multiply by 24.
Quick estimate
Multiplying by about 0.04 gets within 4.0% of the exact answer, which is enough to check that a result makes sense.
Where it comes up
Time conversions come up in planning and scheduling, timesheets and pay, project estimates and working out ages or durations.
| hours | days |
|---|---|
| 1 h | 0.04166667 d |
| 2 h | 0.08333333 d |
| 3 h | 0.125 d |
| 4 h | 0.16666667 d |
| 5 h | 0.20833333 d |
| 6 h | 0.25 d |
| 7 h | 0.29166667 d |
| 8 h | 0.33333333 d |
| 9 h | 0.375 d |
| 10 h | 0.41666667 d |
| 11 h | 0.45833333 d |
| 12 h | 0.5 d |
| 13 h | 0.54166667 d |
| 14 h | 0.58333333 d |
| 15 h | 0.625 d |
| 16 h | 0.66666667 d |
| 17 h | 0.70833333 d |
| 18 h | 0.75 d |
| 19 h | 0.79166667 d |
| 20 h | 0.83333333 d |
| 25 h | 1.041667 d |
| 30 h | 1.25 d |
| 40 h | 1.666667 d |
| 50 h | 2.083333 d |
| 60 h | 2.5 d |
| 70 h | 2.916667 d |
| 75 h | 3.125 d |
| 80 h | 3.333333 d |
| 90 h | 3.75 d |
| 100 h | 4.166667 d |
| 120 h | 5 d |
| 150 h | 6.25 d |
| 200 h | 8.333333 d |
| 250 h | 10.416667 d |
| 300 h | 12.5 d |
| 400 h | 16.666667 d |
| 500 h | 20.833333 d |
| 750 h | 31.25 d |
| 1,000 h | 41.666667 d |
| 1,500 h | 62.5 d |
| 2,000 h | 83.333333 d |
| 5,000 h | 208.333333 d |
| 10,000 h | 416.666667 d |
Questions
How many days are in a hour?
0.04166667 days.
How do I convert hours to days in a spreadsheet?
Put the value in A1 and type =A1*0.04166667, then fill the formula down the column.
Are the values in the table exact?
They are calculated from the exact definitions of the units and rounded only for display. Open any row for the full working.