At One Place

Yards to light-years

1 yard in light-years
1 yd = 9.665 × 10^-17 ly
ly = yd × 9.665215626 × 10^-17

To convert yards to light-years, multiply by 9.665215626 × 10^-17. The table below gives the values people look up most often, and the converter works for any number.

Yards to light-years table

Common yard values converted to light-years.
Yards Light-years
1 yd 9.665 × 10^-17
2 yd 1.933 × 10^-16
3 yd 2.9 × 10^-16
4 yd 3.866 × 10^-16
5 yd 4.833 × 10^-16
10 yd 9.665 × 10^-16
15 yd 1.45 × 10^-15
20 yd 1.933 × 10^-15
25 yd 2.416 × 10^-15
30 yd 2.9 × 10^-15
40 yd 3.866 × 10^-15
50 yd 4.833 × 10^-15
75 yd 7.249 × 10^-15
100 yd 9.665 × 10^-15
250 yd 2.416 × 10^-14
500 yd 4.833 × 10^-14
1,000 yd 9.665 × 10^-14

How the conversion works

The relationship is ly = yd × 9.665215626 × 10^-17. Both units measure length, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two.

Common questions

How many light-years are in one yard?
One yard equals 9.665 × 10^-17 light-years. ly = yd × 9.665215626 × 10^-17.
How do you convert yards to light-years?
Use ly = yd × 9.665215626 × 10^-17. So 10 yd is 9.665 × 10^-16 ly.
How many yards are in one light-year?
One light-year equals 1.0346381 × 10^16 yards, which is the reverse of the conversion above.

Related pages

Sources

  1. Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
  2. The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
  3. Calculated on this page — At One Place

How these figures are compiled and checked