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Convert gregorian year to julian year

Here you can quickly calculate how many julian year fit in one gregorian year.

- scroll: formula · table · questions -

  • 1 = 0.999979
  • 1 = 1.000021

Gregorian year to julian year conversion table

gregorian year julian year
1 0.999979
2 1.999957
5 4.999893
10 9.999786
20 19.999573
50 49.998932
100 99.997864

Formula to convert gregorian year to julian year

To convert gregorian year to julian year, multiply by 0.999979.

1 = 0.999979
Example: 1 gregorian year = 0.999979 julian year

Common mistakes in time conversion

  • A year is not exactly 52 weeks: 365 days is 52 weeks plus one day, and a leap year 52 weeks plus two. That extra day is why the same date shifts one weekday each year. When spreading a yearly amount per week, use 52.18 weeks per year.
  • There are several year definitions: the Julian year is exactly 365.25 days, the Gregorian calendar year 365.2425, and the tropical year about 365.2422 days. For everyday use the differences are negligible, but they matter in astronomy, the light-year, for instance, is defined using the Julian year.

Quick gregorian year to/from julian year conversion quiz

Score: 0

122 julian year equals 122 gregorian year.

Correct answer: 122 julian year = 122 gregorian year.

8.4 julian year equals 8.4 gregorian year.

Correct answer: 8.4 julian year = 8.4 gregorian year.

8 gregorian year equals 8 julian year.

Correct answer: 8 gregorian year = 8 julian year.

More conversions in time