840 fm = 5,040 ft. To convert fathoms to feet, multiply by 6: 840 × 6 = 5,040.
How to convert fathoms to feet
ft = fm × 6
- 1 fm = 6 ft (and 1 ft = 0.16666667 fm).
- Multiply the amount by the factor: 840 × 6 = 5,040.
- Answer: 840 fm = 5,040 ft.
Fathoms to Feet table
| Fathoms (fm) | Feet (ft) |
|---|---|
| 835 fm | 5,010 ft |
| 836 fm | 5,016 ft |
| 837 fm | 5,022 ft |
| 838 fm | 5,028 ft |
| 839 fm | 5,034 ft |
| 840 fm | 5,040 ft |
| 841 fm | 5,046 ft |
| 842 fm | 5,052 ft |
| 843 fm | 5,058 ft |
| 844 fm | 5,064 ft |
| 845 fm | 5,070 ft |
| fm | ft |
|---|---|
| 1 fm | 6 ft |
| 5 fm | 30 ft |
| 10 fm | 60 ft |
| 50 fm | 300 ft |
| 100 fm | 600 ft |
| 1,000 fm | 6,000 ft |
Good to know
1 inch = 2.54 cm exactly; 1 cm = 10 mm; 1 m = 100 cm; 1 foot = 12 inches = 30.48 cm.