# year (Gregorian) to year (Julian) conversion

Conversion number between year (Gregorian) [a, y, or yr] and year (Julian) [a, y, or yr] is 0.9999794661191. This means, that year (Gregorian) is smaller unit than year (Julian).

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from year (Julian) to year (Gregorian) conversion

### Enter the number in year (Gregorian):

Decimal Fraction Exponential Expression
 [a, y, or yr]
eg.: 10.12345 or 1.123e5

Result in year (Julian)

?
 precision 0 1 2 3 4 5 6 7 8 9 [info] Decimal: Exponential:

### Calculation process of conversion value

• 1 year (Gregorian) = (exactly) (31556952) / (31557600) = 0.9999794661191 year (Julian)
• 1 year (Julian) = (exactly) (31557600) / (31556952) = 1.0000205343026 year (Gregorian)
• ? year (Gregorian) × (31556952  ("s"/"year (Gregorian)")) / (31557600  ("s"/"year (Julian)")) = ? year (Julian)

### High precision conversion

If conversion between year (Gregorian) to second and second to year (Julian) is exactly definied, high precision conversion from year (Gregorian) to year (Julian) is enabled.

Decimal places: (0-800)

year (Gregorian)
Result in year (Julian):
?

### year (Gregorian) to year (Julian) conversion chart

 Start value: [year (Gregorian)] Step size [year (Gregorian)] How many lines? (max 100)

visual:
year (Gregorian)year (Julian)
00
109.999794661191
2019.999589322382
3029.999383983573
4039.999178644764
5049.998973305955
6059.998767967146
7069.998562628337
8079.998357289528
9089.998151950719
10099.99794661191
110109.9977412731
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## Multiple conversion

Enter numbers in year (Gregorian) and click convert button.
One number per line.

Converted numbers in year (Julian):
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## Details about year (Gregorian) and year (Julian) units:

Convert Year (Gregorian) to other unit:

### year (Gregorian)

Definition of year (Gregorian) unit: = 365.2425 d average. As the common year has 365 days, the Gregorian calendar with leap years compensate the deviation from the real, astronomical year. According to this calendar, every 4th year is a leap year, except for every 100th. But every 400th is a leap year. This means that there are 97 leap years in 400 year period. So according to Gregorian's calendar, one year has 365 + 97/400 days (average). This is not a perfect approach, but in 1000 year period, the defiation is only 0.3 days compared to the astronomical year. In the year 1582 Gregorian replaced the Julian calendar.

Convert Year (Julian) to other unit:

### year (Julian)

Definition of year (Julian) unit: = 365.25 d average. The basic calendar year has 365 days, but in fact the Earth needs a little more time around the sun. The Julian calendar compensated this with leap year (every fourth year had 366 days). According to the formula, a Julian year has 365 + 1/4 = 365.25 days. But even with this compensation, the astronomical year slip 0.78 days every 100 years into real seasons. Therefore, most countries have moved to the Gregorian calendar introduced in 1582.

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