How many Gregorian month in 1 tropical year? The answer is 11.999989902067. We assume you are converting between Gregorian month and tropical year. You can view more details on each measurement unit: Gregorian month or tropical year The SI base unit for time is the second. 1 second is equal to 3.8026486208174E-7 Gregorian month, or 3.1688765172731E-8 tropical 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!
You may also want to find out how many days are between two dates on the calendar. Use the date calculatorto get your age in days or measure the duration of an event.
1 Gregorian month to tropical year = 0.08333 tropical year
10 Gregorian month to tropical year = 0.83333 tropical year
20 Gregorian month to tropical year = 1.66667 tropical year
30 Gregorian month to tropical year = 2.5 tropical year
40 Gregorian month to tropical year = 3.33334 tropical year
50 Gregorian month to tropical year = 4.16667 tropical year
100 Gregorian month to tropical year = 8.33334 tropical year
200 Gregorian month to tropical year = 16.66668 tropical year
You can do the reverse unit conversion from tropical year to Gregorian month, or enter any two units below:
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.
The mean tropical year is defined as the period of time for the mean ecliptic longitude of the Sun to increase by 360 degrees. Since the Sun's ecliptic longitude is measured with respect to the equinox, the tropical year comprises a complete cycle of the seasons; because of the biological and socio-economic importance of the seasons, the tropical year is the basis of most calendars.
The International Union of Pure and Applied Chemistry and the International Union of Geological Sciences have jointly recommended using defining the annus, with symbol a, as the length of the tropical year in the year 2000:
a = 31556925.445 seconds (approximately 365.24219265 ephemeris days)
We default to using the Gregorian year on this site, but you can select a specific type of year by entering the full name like "tropical year".
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, 70 kg, 150 lbs, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!