4 fm ≈ 0.00394989 nmi. To convert fathoms to nautical miles, multiply by 0.000987473: 4 × 0.000987473 = 0.00394989.
How to convert fathoms to nautical miles
nmi = fm × 0.000987473
- 1 fm = 0.000987473 nmi (and 1 nmi = 1,012.6859 fm).
- Multiply the amount by the factor: 4 × 0.000987473 = 0.00394989.
- Answer: 4 fm ≈ 0.00394989 nmi (rounded to 6 significant figures).
Fathoms to Nautical Miles table
| Fathoms (fm) | Nautical Miles (nmi) |
|---|---|
| 1 fm | 0.000987473 nmi |
| 2 fm | 0.00197495 nmi |
| 3 fm | 0.00296242 nmi |
| 4 fm | 0.00394989 nmi |
| 5 fm | 0.00493737 nmi |
| 6 fm | 0.00592484 nmi |
| 7 fm | 0.00691231 nmi |
| 8 fm | 0.00789978 nmi |
| 9 fm | 0.00888726 nmi |
| 10 fm | 0.00987473 nmi |
| 11 fm | 0.0108622 nmi |
| fm | nmi |
|---|---|
| 1 fm | 0.000987473 nmi |
| 5 fm | 0.00493737 nmi |
| 10 fm | 0.00987473 nmi |
| 50 fm | 0.0493737 nmi |
| 100 fm | 0.0987473 nmi |
| 1,000 fm | 0.987473 nmi |
Good to know
1 inch = 2.54 cm exactly; 1 cm = 10 mm; 1 m = 100 cm; 1 foot = 12 inches = 30.48 cm.