›› Measurement unit: Julian year

Full name: Julian year

Plural form: years

Symbol: yr

Alternate spelling: Julian years

Category type: time

Scale factor: 31557600


›› SI unit: second

The SI base unit for time is the second.
1 second is equal to 3.1688087814029E-8 Julian year.


›› Convert Julian year to another unit

Convert Julian year to  

Valid units must be of the time type.
You can use this form to select from known units:

Convert Julian year to  


›› Definition: Year

A year is the time between two recurrences of an event related to the orbit of the Earth around the Sun. In astronomy, the Julian year is a unit of time, defined as 365.25 days of 86,400 SI seconds each (no leap seconds), or 31,557,600 seconds total.

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 "Julian year".


›› Sample conversions: Julian year

Julian year to tropical month
Julian year to second
Julian year to Gregorian year
Julian year to minute
Julian year to decade
Julian year to shake
Julian year to sidereal year
Julian year to millennium
Julian year to anomalistic year
Julian year to microsecond