Convert length and distance units — meters, feet, inches, kilometers, miles, light years and more.
| Unit | Name | Value |
|---|---|---|
| 0.001 ly | 4.70303e+11 chain | |
| 0.01 ly | 4.70303e+12 chain | |
| 0.1 ly | 4.70303e+13 chain | |
| 1 ly | 4.70303e+14 chain | |
| 5 ly | 2.352e+15 chain | |
| 10 ly | 4.703e+15 chain | |
| 50 ly | 2.352e+16 chain | |
| 100 ly | 4.703e+16 chain | |
| 1000 ly | 4.703e+17 chain |
Multiply the number of Light Years by 4.703×1014 to get Chains. Formula: chain = ly × 4.703×1014. Example: 10 ly × 4.703×1014 = 4.703×1015 chain. To reverse, divide Chains by 4.703×1014 to get Light Years.
| Light Year (ly) | Chain (chain) |
|---|---|
| 0.001 ly | 470303000000 chain |
| 0.01 ly | 4.703×1012 chain |
| 0.1 ly | 4.703×1013 chain |
| 0.5 ly | 2.3515×1014 chain |
| 1 ly | 4.703×1014 chain |
| 2 ly | 9.4061×1014 chain |
| 5 ly | 2.3515×1015 chain |
| 10 ly | 4.703×1015 chain |
| 20 ly | 9.4061×1015 chain |
| 50 ly | 2.3515×1016 chain |
| 100 ly | 4.703×1016 chain |
| 250 ly | 1.1758×1017 chain |
| 500 ly | 2.3515×1017 chain |
| 1000 ly | 4.703×1017 chain |
| 10000 ly | 4.703×1018 chain |
To convert Light Year to Chain, multiply by 4.703×1014. Example: 10 ly = 4.703×1015 chain
To convert Chain back to Light Year, divide by 4.703×1014 (multiply by 2.1263×10-15). Use the swap button above.
Start with 100 Light Years = 4.703×1016 chain as your reference point. Scale up or down from there.
1 ly = 4.703×10¹⁴ chains — 470 trillion chains. Educators use this to show the full range of human measurement: from Edmund Gunter's 1620 land surveying tool to the unit used to describe stellar distances.
Astronomy outreach at rural events uses ly-to-chain comparisons to make stellar distances tangible for farming audiences: "The nearest star is 470 trillion chains away — that's 470 trillion times your field's fence line."
The chain (1620) and the light-year (1851) span 231 years of measurement history — from dividing English farm fields to measuring interstellar space. Historians of science use this pair to trace how measurement scaled with human exploration.
University physics courses use ly-to-chain in dimensional analysis problems to test students' mastery of multi-step unit conversion across imperial, SI, and astronomical unit systems simultaneously.
Science museum exhibits on the history of measurement use ly-to-chain as the most dramatic example of how human measurement evolved — from agricultural tools to cosmic yardsticks in under 250 years.
Complete unit converters include ly-to-chain for historical completeness — ensuring researchers can convert between any standardised unit pair encountered in agricultural history and astrophysics literature.
The Light Year is a unit of Length measurement (symbol: ly). 1 ly = 4.703×1014 chain. Used in scientific and practical Length measurement applications.
The Chain is a unit of Length measurement (symbol: chain). It is part of an internationally recognised measurement system used alongside the Light Year.
The light-year first appeared in a German publication in 1851 written by Otto Ule as a way to make stellar distances comprehensible to general audiences — it was not coined by professional astronomers. It equals the distance light travels in one Julian year: exactly 9,460,730,472,580.8 kilometres. Professional astronomers often prefer parsecs (which relate directly to parallax measurements), but the light-year became the public's unit of choice for cosmic distance because it connects the familiar concept of speed with cosmic scale. One light-year equals about 63,241 astronomical units.
Edmund Gunter invented the surveyor's chain in 1620. His design — 100 links totalling exactly 66 feet — was brilliantly chosen: 10 chains × 10 chains = 1 acre. 80 chains = 1 mile, 10 chains = 1 furlong. The chain became the standard survey unit across the British Empire and is written into American law — the US Public Land Survey System still divides land using chains and links.
Common use: Light Year to Chain conversion is needed when working with international standards, scientific publications, or reference materials that use different unit systems for Length measurement.