686 km ≈ 370.41 nmi. To convert kilometers to nautical miles, multiply by 0.5399568: 686 × 0.5399568 = 370.41.
How to convert kilometers to nautical miles
nmi = km × 0.5399568
- 1 km = 0.5399568 nmi (and 1 nmi = 1.852 km).
- Multiply the amount by the factor: 686 × 0.5399568 = 370.41.
- Answer: 686 km ≈ 370.41 nmi (rounded to 6 significant figures).
Kilometers to Nautical Miles table
| Kilometers (km) | Nautical Miles (nmi) |
|---|---|
| 681 km | 367.711 nmi |
| 682 km | 368.251 nmi |
| 683 km | 368.79 nmi |
| 684 km | 369.33 nmi |
| 685 km | 369.87 nmi |
| 686 km | 370.41 nmi |
| 687 km | 370.95 nmi |
| 688 km | 371.49 nmi |
| 689 km | 372.03 nmi |
| 690 km | 372.57 nmi |
| 691 km | 373.11 nmi |
| km | nmi |
|---|---|
| 1 km | 0.539957 nmi |
| 5 km | 2.6998 nmi |
| 10 km | 5.3996 nmi |
| 50 km | 26.9978 nmi |
| 100 km | 53.9957 nmi |
| 1,000 km | 539.957 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.