To convert light years to spans, multiply the value by 4.13855 × 10¹⁶. To go the other way, multiply spans by 2.4163 × 10⁻¹⁷ to get light years.
| Light Years (ly) | Spans (span) |
|---|---|
| 1 ly | 4.13855 × 10¹⁶ span |
| 2 ly | 8.2771 × 10¹⁶ span |
| 3 ly | 1.24157 × 10¹⁷ span |
| 4 ly | 1.65542 × 10¹⁷ span |
| 5 ly | 2.06928 × 10¹⁷ span |
| 6 ly | 2.48313 × 10¹⁷ span |
| 7 ly | 2.89699 × 10¹⁷ span |
| 8 ly | 3.31084 × 10¹⁷ span |
| 9 ly | 3.7247 × 10¹⁷ span |
| 10 ly | 4.13855 × 10¹⁷ span |
| 12 ly | 4.96626 × 10¹⁷ span |
| 14 ly | 5.79397 × 10¹⁷ span |
| 15 ly | 6.20783 × 10¹⁷ span |
| 20 ly | 8.2771 × 10¹⁷ span |
| 21 ly | 8.69096 × 10¹⁷ span |
| 24 ly | 9.93253 × 10¹⁷ span |
| 25 ly | 1.03464 × 10¹⁸ span |
| 30 ly | 1.24157 × 10¹⁸ span |
| 40 ly | 1.65542 × 10¹⁸ span |
| 50 ly | 2.06928 × 10¹⁸ span |
| 60 ly | 2.48313 × 10¹⁸ span |
| 75 ly | 3.10391 × 10¹⁸ span |
| 80 ly | 3.31084 × 10¹⁸ span |
| 100 ly | 4.13855 × 10¹⁸ span |
| 200 ly | 8.2771 × 10¹⁸ span |
| 250 ly | 1.03464 × 10¹⁹ span |
| 300 ly | 1.24157 × 10¹⁹ span |
| 400 ly | 1.65542 × 10¹⁹ span |
| 500 ly | 2.06928 × 10¹⁹ span |
| 750 ly | 3.10391 × 10¹⁹ span |
| 1,000 ly | 4.13855 × 10¹⁹ span |
Light year (ly). A light year is the distance light travels in one year, about 9.46 trillion kilometers.
Span (span). A span is 9 inches (0.2286 m), the distance across an outstretched hand.
There are 4.13855 × 10¹⁶ spans in one light year.
Multiply the number of light years by 4.13855 × 10¹⁶. For example, 10 light years equal 4.13855 × 10¹⁷ spans.
One span equals 2.4163 × 10⁻¹⁷ light years.
4.96626 × 10¹⁷ spans. Other common values: 5 light years = 2.06928 × 10¹⁷ spans and 100 light years = 4.13855 × 10¹⁸ spans.