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How many year in 1 century?
The answer is 100.00205343026.

We assume you are converting between **Gregorian year** and **century**.

You can view more details on each measurement unit:

year or
century

The SI base unit for **time** is the second.

1 second is equal to 3.1688738506811E-8 year, or 3.1688087814029E-10 century.

Note that rounding errors may occur, so always check the results.

Use this page to learn how to convert between years and centuries.

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 calculator**
to get your age in days or measure the duration of an event.

1 year to century = 0.01 century

10 year to century = 0.1 century

50 year to century = 0.49999 century

100 year to century = 0.99998 century

200 year to century = 1.99996 century

500 year to century = 4.9999 century

1000 year to century = 9.99979 century

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

year to day

year to millennium

year to month

year to decade

year to quarter

year to fortnight

year to millisecond

year to microsecond

year to shake

year to week

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.

a_{g} = a_g = 365.2425 days for the mean Gregorian year

A century is a period of 100 years, which can have either 24 or 25 leap years, depends on whether the year xx00 is a leap year or not.

We assume there are 25 leap year days in a typical century. A non-leap year of 365 days would have 86,400 * 365 = 31,536,000 seconds in it. Adding another 25 days adds 2,160,000 seconds, so there are a total of 3,155,760,000 seconds in a century that has 25 leap years.

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