To convert US survey chains to spans, multiply the value by 88.0002. To go the other way, multiply spans by 0.0113636 to get US survey chains.
| US Survey Chains (chUS) | Spans (span) |
|---|---|
| 1 chUS | 88.0002 span |
| 2 chUS | 176 span |
| 3 chUS | 264.001 span |
| 4 chUS | 352.001 span |
| 5 chUS | 440.001 span |
| 6 chUS | 528.001 span |
| 7 chUS | 616.001 span |
| 8 chUS | 704.001 span |
| 9 chUS | 792.002 span |
| 10 chUS | 880.002 span |
| 12 chUS | 1,056 span |
| 14 chUS | 1,232 span |
| 15 chUS | 1,320 span |
| 20 chUS | 1,760 span |
| 21 chUS | 1,848 span |
| 24 chUS | 2,112 span |
| 25 chUS | 2,200 span |
| 30 chUS | 2,640.01 span |
| 40 chUS | 3,520.01 span |
| 50 chUS | 4,400.01 span |
| 60 chUS | 5,280.01 span |
| 75 chUS | 6,600.01 span |
| 80 chUS | 7,040.01 span |
| 100 chUS | 8,800.02 span |
| 200 chUS | 17,600 span |
| 250 chUS | 22,000 span |
| 300 chUS | 26,400.1 span |
| 400 chUS | 35,200.1 span |
| 500 chUS | 44,000.1 span |
| 750 chUS | 66,000.1 span |
| 1,000 chUS | 88,000.2 span |
US survey chain (chUS). The US survey chain is 66 US survey feet, about 20.1168 m.
Span (span). A span is 9 inches (0.2286 m), the distance across an outstretched hand.
There are 88.0002 spans in one US survey chain.
Multiply the number of US survey chains by 88.0002. For example, 10 US survey chains equal 880.002 spans.
One span equals 0.0113636 US survey chains.
1,056 spans. Other common values: 5 US survey chains = 440.001 spans and 100 US survey chains = 8,800.02 spans.