›› Convert Gregorian month to Gregorian year


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year

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tropical month
sidereal month
synodic month
anomalistic month
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to Gregorian year
Julian year
tropical year
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anomalistic year
draconic year
lunar year
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›› More information from the unit converter

How many month in 1 year? The answer is 12.
We assume you are converting between Gregorian month and Gregorian year.
You can view more details on each measurement unit:
month or year
The SI base unit for time is the second.
1 second is equal to 3.80264862082E-7 month, or 3.16887385068E-8 year.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between months and years.
Type in your own numbers in the form to convert the units!


›› Date difference between calendar days

You may also want to find out how many days are between two dates on the calendar. Use the date calculator to get your age in days or measure the duration of an event.


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You can do the reverse unit conversion from year to month, or enter any two units below:

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›› Definition: Month

The month is a unit of time, used with calendars, which is approximately as long as some natural period related to the motion of the Moon (i.e. "Moonth"). The mean month length of the Gregorian calendar is 30.436875 days.


›› Definition: Year

An average Gregorian year is 365.2425 days (52.1775 weeks, 8765.82 hours, 525949.2 minutes or 31556952 seconds). For this calendar, a common year is 365 days (8760 hours, 525600 minutes or 31536000 seconds), and a leap year is 366 days (8784 hours, 527040 minutes or 31622400 seconds). The 400-year cycle of the Gregorian calendar has 146097 days and hence exactly 20871 weeks.

ag = a_g = 365.2425 days for the mean Gregorian year


›› Metric conversions and more

ConvertUnits.com provides an online conversion calculator for all types of measurement units. You can find metric conversion tables for SI units, as well as English units, currency, and other data. Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. Examples include mm, inch, 100 kg, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!