| Area in Acres | Square Dimension | Radius of Circle | |||
|---|---|---|---|---|---|
| Feet | Meters | Feet | Meters | Chains | |
| 1 \ 1,000 | 6'7.2“ | 2.1 | 3'8.7” | 1.14 | 0.056 |
| 1 \ 100 | 20'10.5“ | 6.36 | 11'9.3” | 3.59 | 0.18 |
| 1 \ 20 | 46'8.0“ | 14.2 | 26'4.0” | 8.03 | 0.40 |
| 1 \ 10 | 66'0“ | 20.1 | 37'2.8” | 11.35 | 0.56 |
| 1 \ 5 | 93'4.1“ | 28.5 | 52'7.9” | 16.05 | 0.80 |
| 1 \ 4 | 104'4.3“ | 31.8 | 58'10.5” | 17.95 | 0.89 |
| 1 | 208'8.5“ | 63.6 | 117'9.0” | 35.89 | 1.78 |
| Difference in Bearing or Elevation for a Distance of One Mile | |||
|---|---|---|---|
| Angle | Difference (Feet) | Angle | Difference (Feet) |
| 1° | 92.16 | 8° | 742.06 |
| 2° | 184.38 | 9° | 836.27 |
| 3° | 276.71 | 10° | 931.01 |
| 4° | 369.21 | 11° | 1026.33 |
| 5° | 461.94 | 12° | 1122.30 |
| 6° | 554.95 | 13° | 1218.98 |
| 7° | 648.30 | 14° | 1316.45 |
NOTE: One minute of angle makes a difference of 1.536 feetper mile.