To convert spans to US survey rods, multiply the value by 0.0454545. To go the other way, multiply US survey rods by 22 to get spans.
| Spans (span) | US Survey Rods (rdUS) |
|---|---|
| 1 span | 0.0454545 rdUS |
| 2 span | 0.0909089 rdUS |
| 3 span | 0.136363 rdUS |
| 4 span | 0.181818 rdUS |
| 5 span | 0.227272 rdUS |
| 6 span | 0.272727 rdUS |
| 7 span | 0.318181 rdUS |
| 8 span | 0.363636 rdUS |
| 9 span | 0.40909 rdUS |
| 10 span | 0.454545 rdUS |
| 12 span | 0.545453 rdUS |
| 14 span | 0.636362 rdUS |
| 15 span | 0.681817 rdUS |
| 20 span | 0.909089 rdUS |
| 21 span | 0.954544 rdUS |
| 24 span | 1.09091 rdUS |
| 25 span | 1.13636 rdUS |
| 30 span | 1.36363 rdUS |
| 40 span | 1.81818 rdUS |
| 50 span | 2.27272 rdUS |
| 60 span | 2.72727 rdUS |
| 75 span | 3.40908 rdUS |
| 80 span | 3.63636 rdUS |
| 100 span | 4.54545 rdUS |
| 200 span | 9.09089 rdUS |
| 250 span | 11.3636 rdUS |
| 300 span | 13.6363 rdUS |
| 400 span | 18.1818 rdUS |
| 500 span | 22.7272 rdUS |
| 750 span | 34.0908 rdUS |
| 1,000 span | 45.4545 rdUS |
Span (span). A span is 9 inches (0.2286 m), the distance across an outstretched hand.
US survey rod (rdUS). The US survey rod is 16.5 US survey feet, about 5.0292 m.
There are 0.0454545 US survey rods in one span.
Multiply the number of spans by 0.0454545. For example, 10 spans equal 0.454545 US survey rods.
One US survey rod equals 22 spans.
0.545453 US survey rods. Other common values: 5 spans = 0.227272 US survey rods and 100 spans = 4.54545 US survey rods.