To convert nautical miles to barleycorns, multiply the value by 218,739. To go the other way, multiply barleycorns by 4.57165 × 10⁻⁶ to get nautical miles.
| Nautical Miles (NM) | Barleycorns (bc) |
|---|---|
| 1 NM | 218,739 bc |
| 2 NM | 437,479 bc |
| 3 NM | 656,218 bc |
| 4 NM | 874,957 bc |
| 5 NM | 1,093,700 bc |
| 6 NM | 1,312,440 bc |
| 7 NM | 1,531,180 bc |
| 8 NM | 1,749,910 bc |
| 9 NM | 1,968,650 bc |
| 10 NM | 2,187,390 bc |
| 12 NM | 2,624,870 bc |
| 14 NM | 3,062,350 bc |
| 15 NM | 3,281,090 bc |
| 20 NM | 4,374,790 bc |
| 21 NM | 4,593,530 bc |
| 24 NM | 5,249,740 bc |
| 25 NM | 5,468,480 bc |
| 30 NM | 6,562,180 bc |
| 40 NM | 8,749,570 bc |
| 50 NM | 10,937,000 bc |
| 60 NM | 13,124,400 bc |
| 75 NM | 16,405,400 bc |
| 80 NM | 17,499,100 bc |
| 100 NM | 21,873,900 bc |
| 200 NM | 43,747,900 bc |
| 250 NM | 54,684,800 bc |
| 300 NM | 65,621,800 bc |
| 400 NM | 87,495,700 bc |
| 500 NM | 109,370,000 bc |
| 750 NM | 164,054,000 bc |
| 1,000 NM | 218,739,000 bc |
Nautical mile (NM). A nautical mile is exactly 1,852 meters, based on one minute of latitude, and is used in shipping and aviation.
Barleycorn (bc). The barleycorn is one third of an inch (about 8.47 mm), historically the length of a grain of barley.
There are 218,739 barleycorns in one nautical mile.
Multiply the number of nautical miles by 218,739. For example, 10 nautical miles equal 2,187,390 barleycorns.
One barleycorn equals 4.57165 × 10⁻⁶ nautical miles.
2,624,870 barleycorns. Other common values: 5 nautical miles = 1,093,700 barleycorns and 100 nautical miles = 21,873,900 barleycorns.