1 Hour to Days

1 h ≈ 0.041667 d

Calculation: d = 1 h × 0.0416667 ≈ 0.041667 d

Hour to Day Converter

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How long is 1 h?

1 hour (1.0 hours) is comparable to the length of a movie.

What does 1 h look like?

Illustration of a movie theater with screen
1 hour (1.0 hours) is comparable to the length of a movie.

How to Convert Hour to Day

1 hour = 0.0416667 days exact

Day = Hour × 0.0416667

Example: 1 h × 0.0416667 = 0.041667 d

Reverse Conversion

To convert days back to hours:

  • Remember, 1 day equals 24 hours.
  • To convert 0.041667 d to h, multiply 0.041667 x 24, resulting in 1 h.

exact This conversion factor is exact by international definition.

1 hour equals 0.04167 days (1/24 of a day). There are exactly 24 hours in a civil day — a convention from ancient Egypt, where day and night were each divided into 12 parts.

1 h is also equal to:

  • 3600 second
  • 60 minute
  • 0.0059524 week
  • 0.0013689 month (mean)
  • 0.00011408 year (mean)
About these units

Hour: h — The hour is a unit of time equal to exactly 3,600 seconds or 60 minutes. It is not an SI unit but is accepted for use with the SI system.

Day: d — The day is a unit of time equal to exactly 86,400 seconds, 1,440 minutes, or 24 hours.

Frequently Asked Questions

How much is 1 hour in days?

1 hour equals 0.041667 days. This is calculated by multiplying 1 by the conversion factor 0.0416667.

What does 1 hour look like in days?

1 hour (0.041667 days) is one to four hours — a class, a movie, or a short flight.

How do you calculate 1 hour to days?

Multiply 1 by the conversion factor 0.0416667. The calculation is 1 × 0.0416667 = 0.041667 days. This factor is defined by international measurement standards.

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1 hour = 0.0416667 days
1 hour = 0.0416667 days — conversion chart

For general conversions between hours and days, see the hours to days converter.

Conversion factors verified against NIST, BIPM, ISO 8601 Second defined by Cs-133 transition (SI, BIPM). Last reviewed: March 2026
Tiago Fernandes Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.