Year (Leap) to Sidereal Year Converter

Time Converter

21 units available

Decimals:

From

To

1.002036

1 yr = 1.002036 sid yr

Formula:

sid yr = yr × 1.0020359399

With your value: 1 yr = 1.00203594 sid yr

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 Year conversions

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

Year (Leap) to Sidereal Year Conversion Table

Year (Leap) (yr)	Sidereal Year (sid yr)
0.5	0.501018
1	1.002036
2	2.004072
5	5.01018
10	10.020359
15	15.030539
20	20.040719
25	25.050898
50	50.101797
100	100.203594
250	250.508985
500	501.01797
1000	1,002.03594

Sidereal Year to Year (Leap) Conversion Table

Sidereal Year (sid yr)	Year (Leap) (yr)
0.5	0.498984
1	0.997968
2	1.995936
5	4.989841
10	9.979682
15	14.969523
20	19.959364
25	24.949205
50	49.89841
100	99.79682
250	249.492049
500	498.984098
1000	997.968197

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 Year (sid 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

How to Convert Year (Leap) to Sidereal Year

To convert from Year (Leap) (yr) to Sidereal Year (sid yr), multiply the value by 1.0020359399.

Formula: sid yr = yr × 1.0020359399

Reverse: yr = sid yr × 0.9979681967

Step-by-Step Example

Start with your value in Year (Leap). For example: 5 yr
Multiply by the conversion factor: 5 x 1.0020359399
The result is: 5.01018 sid yr

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 Year

The sidereal year (sid yr) is a unit of time. One sidereal year equals 3.155815 × 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.

Frequently Asked Questions

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

There are exactly 1.0020359399 Sidereal Year in 1 Year (Leap). This means the conversion factor from Year (Leap) to Sidereal Year is 1.0020359399.

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

The formula to convert Year (Leap) to Sidereal Year is: sid yr = yr × 1.0020359399. For example, to convert 10 Year (Leap) to Sidereal Year, you would multiply 10 by 1.0020359399.

What is a Year (Leap)?