| Perch | Fathoms |
|---|---|
| 1 perch | 2.75 fm |
| 2 perch | 5.5 fm |
| 3 perch | 8.25 fm |
| 4 perch | 11 fm |
| 5 perch | 13.75 fm |
| 6 perch | 16.5 fm |
| 7 perch | 19.25 fm |
| 8 perch | 22 fm |
| 9 perch | 24.75 fm |
| 10 perch | 27.5 fm |
| Perch | Fathoms |
|---|---|
| 15 perch | 41.25 fm |
| 20 perch | 55 fm |
| 30 perch | 82.5 fm |
| 40 perch | 110 fm |
| 50 perch | 137.5 fm |
| 60 perch | 165 fm |
| 70 perch | 192.5 fm |
| 80 perch | 220 fm |
| 90 perch | 247.5 fm |
| 100 perch | 275 fm |
| Perch | Fathoms |
|---|---|
| 500 perch | 1375 fm |
| 1000 perch | 2750 fm |
| 1500 perch | 4125 fm |
| 10000 perch | 27500 fm |
| 50000 perch | 137500 fm |
| 100000 perch | 275000 fm |
| 500000 perch | 1375000 fm |
| 1000000 perch | 2750000 fm |
| 5000000 perch | 13750000 fm |
| 10000000 perch | 27500000 fm |