Hours To Days Conversion (hr To Day) - Inch Calculator

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• Hours to Days Converter
• How to Convert Hours to Days
• What Is an Hour?
• What Is a Day?
• Hour to Day Conversion Table

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Joe is the creator of Inch Calculator and has over 20 years of experience in engineering and construction. He holds several degrees and certifications.

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Sexton, J. (n.d.). Hours to Days Converter. Inch Calculator. Retrieved March 4, 2026, from https://www.inchcalculator.com/convert/hour-to-day/

How to Convert Hours to Days

To convert a measurement in hours to a measurement in days, divide the time by the following conversion ratio: 24 hours/day.

Since one day is equal to 24 hours, you can use this simple formula to convert:

days = hours ÷ 24

The time in days is equal to the time in hours divided by 24.

For example, here's how to convert 48 hours to days using the formula above.

days = (48 hr ÷ 24) = 2 d

Hours and days are both units used to measure time. Keep reading to learn more about each unit of measure.

What Is an Hour?

The hour is a period of time equal to 1/24 of a day or 60 minutes.

The hour is an SI accepted unit for time for use with the metric system. Hours can be abbreviated as hr (plural hrs); for example, 1 hour can be written as 1 hr, and 2 hours can be written as 2 hrs.

Learn more about hours.

What Is a Day?

One day is the time it takes for the Earth to complete a single 360-degree rotation about its axis. There are 24 hours in a day.

The day is an SI accepted unit for time for use with the metric system. Days can be abbreviated as d; for example, 1 day can be written as 1 d.

Learn more about days.

Hour to Day Conversion Table

Table showing various hour measurements converted to days.

Hours	Days
1 hr	0.041667 d
2 hr	0.083333 d
3 hr	0.125 d
4 hr	0.166667 d
5 hr	0.208333 d
6 hr	0.25 d
7 hr	0.291667 d
8 hr	0.333333 d
9 hr	0.375 d
10 hr	0.416667 d
11 hr	0.458333 d
12 hr	0.5 d
13 hr	0.541667 d
14 hr	0.583333 d
15 hr	0.625 d
16 hr	0.666667 d
17 hr	0.708333 d
18 hr	0.75 d
19 hr	0.791667 d
20 hr	0.833333 d
21 hr	0.875 d
22 hr	0.916667 d
23 hr	0.958333 d
24 hr	1 d
25 hr	1.0417 d
26 hr	1.0833 d
27 hr	1.125 d
28 hr	1.1667 d
29 hr	1.2083 d
30 hr	1.25 d
31 hr	1.2917 d
32 hr	1.3333 d
33 hr	1.375 d
34 hr	1.4167 d
35 hr	1.4583 d
36 hr	1.5 d
37 hr	1.5417 d
38 hr	1.5833 d
39 hr	1.625 d
40 hr	1.6667 d

More Hour & Day Conversions

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