Year (Leap) to Sidereal Day Converter

Time Converter

21 units available

Decimals:

From

To

367.002075

1 yr = 367.002075 sid day

Formula:

sid day = yr × 367.0020749537

With your value: 1 yr = 367.00207495 sid day

How big is that?

Everyday references on a logarithmic scale, all expressed in year (leap) so you can sanity-check the result.

Minute (1/5.3e+5 your value)0.00000190 yr

Working day (1/1.1e+3 your value)0.000911 yr

Day (1/3.7e+2 your value)0.00273 yr

Week (1/52 your value)0.0191 yr

Year (1/1.0 your value)0.998 yr

Your value1.00 yr

Other Year (Leap) to Sidereal Day conversions

2 yr to sid day 3 yr to sid day 4 yr to sid day 5 yr to sid day 6 yr to sid day 7 yr to sid day 8 yr to sid day

Year (Leap) to Sidereal Day Conversion Table

Year (Leap) (yr)	Sidereal Day (sid day)
0.5	183.501037
1	367.002075
2	734.00415
5	1,835.010375
10	3,670.02075
15	5,505.031124
20	7,340.041499
25	9,175.051874
50	18,350.103748
100	36,700.207495
250	91,750.518738
500	183,501.037477
1000	367,002.074954

Sidereal Day to Year (Leap) Conversion Table

Sidereal Day (sid day)	Year (Leap) (yr)
0.5	0.001362
1	0.002725
2	0.00545
5	0.013624
10	0.027248
15	0.040872
20	0.054496
25	0.06812
50	0.136239
100	0.272478
250	0.681195
500	1.36239
1000	2.72478

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Year (Leap) (yr)

Time

SI definition

Traceable to the second, defined by fixing the caesium-133 hyperfine transition frequency at 9 192 631 770 Hz.

Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)

Bureau International des Poids et Mesures · Reviewed 2026-07-01

Sidereal Day (sid day)

Time

SI definition

Traceable to the second, defined by fixing the caesium-133 hyperfine transition frequency at 9 192 631 770 Hz.

Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)

Bureau International des Poids et Mesures · Reviewed 2026-07-01

How to Convert Year (Leap) to Sidereal Day

To convert from Year (Leap) (yr) to Sidereal Day (sid day), multiply the value by 367.0020749537.

Formula: sid day = yr × 367.0020749537

Reverse: yr = sid day × 0.0027247802

Step-by-Step Example

Start with your value in Year (Leap). For example: 5 yr
Multiply by the conversion factor: 5 x 367.0020749537
The result is: 1,835.010375 sid day

About Year (Leap)

The year (leap) (yr) is a unit of time. One year (leap) equals 3.162240 × 10^+7 seconds. UnitConvertLab converts it against every other time unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: time calculations, engineering and science, education.

About Sidereal Day

The sidereal day (sid day) is a unit of time. One sidereal day equals 86164.0905 seconds. UnitConvertLab converts it against every other time unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: time calculations, engineering and science, education.

Frequently Asked Questions

How many Sidereal Day are in 1 Year (Leap)?

There are exactly 367.0020749537 Sidereal Day in 1 Year (Leap). This means the conversion factor from Year (Leap) to Sidereal Day is 367.0020749537.

What is the formula to convert Year (Leap) to Sidereal Day?

The formula to convert Year (Leap) to Sidereal Day is: sid day = yr × 367.0020749537. For example, to convert 10 Year (Leap) to Sidereal Day, you would multiply 10 by 367.0020749537.

What is a Year (Leap)?