# day (sidereal) to year (common) conversion

Conversion number between day (sidereal) [d (sidereal)] and year (common) [a, y, or yr] is 0.002732245387203. This means, that day (sidereal) is smaller unit than year (common).

### Contents [show][hide]

Switch to reverse conversion:
from year (common) to day (sidereal) conversion

### Enter the number in day (sidereal):

Decimal Fraction Exponential Expression
 [d (sidereal)]
eg.: 10.12345 or 1.123e5

Result in year (common)

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

### Calculation process of conversion value

• 1 day (sidereal) = (86164.09053083288) / (31536000) = 0.002732245387203 year (common)
• 1 year (common) = (31536000) / (86164.09053083288) = 365.99933691304 day (sidereal)
• ? day (sidereal) × (86164.09053083288  ("s"/"day (sidereal)")) / (31536000  ("s"/"year (common)")) = ? year (common)

### High precision conversion

If conversion between day (sidereal) to second and second to year (common) is exactly definied, high precision conversion from day (sidereal) to year (common) 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!

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

 Start value: [day (sidereal)] Step size [day (sidereal)] How many lines? (max 100)

visual:
day (sidereal)year (common)
00
100.02732245387203
200.054644907744059
300.081967361616089
400.10928981548812
500.13661226936015
600.16393472323218
700.19125717710421
800.21857963097624
900.24590208484827
1000.2732245387203
1100.30054699259233
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## Multiple conversion

Enter numbers in day (sidereal) and click convert button.
One number per line.

Converted numbers in year (common):
Click to select all

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

Convert Day (sidereal) to other unit:

### day (sidereal)

Definition of day (sidereal) unit: ≈ 23 h, 56 min, 4.0916 sec. A sidereal day is the time needed for the Earth to rotate once around its axis so that the distant stars appear in the same position in the sky. This is ~4 minutes shorter than the solar day.

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)

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