Abbreviations
| Nautical Mile | NM | |
| Statute Mile | M | |
| Miles per Hour | mph | |
| Knot | kt | |
| Kilometre | km | |
| Kilometre per Hour | kph | |
| Metre | m | |
| Day | D | |
| Hour | h | |
| Minute | min | |
| Second | sec or s | |
| Universal Time Coordinated | UTC | |
| World Sailing | WS | |
| World Sailing Speed Record Council | WSSRC | |
| Racing Rules of Sailing | RRS | |
| Equipment Rules of Sailing | ERS | |
| British Pounds | GBP | |
| Global Positioning System | GPS | |
| International Maritime Organisation | IMO | |
| Maritime Safety Committee | MSC | |
| Horizontal Position Error | hpe | |
| World Geodetic System 84 | WGS 84 | |
| WSSR Black Box | BB | |
| Yellow Box Tracker | YB |
The values below are listed for easy reference, and some are approximations. In the calculation of records, 1 nautical mile is exactly 1852 metres, and 1 knot is exactly 1852/3600 m/s
Distances
1 Nautical Mile = 1.852 km = 1.15069 Mile = 2025.2 Yards
500 Metres = 0.27 Nautical Mile = 0.31 Mile = 546.8 Yards
Speeds
1 Knot = 1 Nautical Mile per hour
1 kt = 1.852 kph = 1.1508 Mph = 0.51444... m/s
1 km/h = 0.5400 kt = 0.6214 Mph = 0.2777... m/s
1 Mph = 1.6093 km/h = 0.8690 kts = 0.4470 m/s
On a 500 m Speed Course
25 sec = 38.88 kts = 20.00 m/s
20 sec = 48.60 kts = 25.00 m/s
19 sec = 51.15 kts = 26.31 m/s
18 sec = 54.00 kts = 27.77 m/s
17 sec = 57.17 kts = 29.41 m/s
16 sec = 60.75 kts = 31.25 m/s
15 sec = 64.79 kts = 33.33 m/s
On a Nautical Mile Course
100 sec = 36 kts
90 sec = 40 kts
80 sec = 45 kts
70 sec = 51.4 kts
60 sec = 60 kts
Latitudes and Longitudes are given in degrees and minutes with 4 decimals