# year (common) to month (sidereal) conversion

Conversion number between year (common) [a, y, or yr] and month (sidereal) is 13.359363473546. This means, that year (common) is bigger unit than month (sidereal).

### Contents [show][hide] Switch to reverse conversion:
from month (sidereal) to year (common) conversion

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

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

Result in month (sidereal)

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

### Calculation process of conversion value

• 1 year (common) = (31536000) / (2360591.5104) = 13.359363473546 month (sidereal)
• 1 month (sidereal) = (2360591.5104) / (31536000) = 0.074853865753425 year (common)
• ? year (common) × (31536000  ("s"/"year (common)")) / (2360591.5104  ("s"/"month (sidereal)")) = ? month (sidereal)

### High precision conversion

If conversion between year (common) to second and second to month (sidereal) is exactly definied, high precision conversion from year (common) to month (sidereal) is enabled. Since definition contain rounded number(s) too, there is no sense for high precision calculation, but if you want, you can enable it. Keep in mind, that converted number will be inaccurate due this rounding error!

### year (common) to month (sidereal) conversion chart

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

visual:
year (common)month (sidereal)
00
10133.59363473546
20267.18726947092
30400.78090420637
40534.37453894183
50667.96817367729
60801.56180841275
70935.1554431482
801068.7490778837
901202.3427126191
1001335.9363473546
1101469.52998209
Copy to Excel

## Multiple conversion

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

Converted numbers in month (sidereal):
Click to select all

## Details about year (common) and month (sidereal) units:

Convert Year (common) to other unit:

### year (common)

Definition of year (common) unit: 365 d. The year commonly has 365 days (except the leap year)

Convert Month (sidereal) to other unit:

### month (sidereal)

Definition of month (sidereal) unit: ≈ 27.321661 days. "It is the time it takes the Moon to go around Earth measured from a fixed point. Sideric month is not completely constant, an average value has been used for calculating." ← Back to Time units 