Knots to Beaufort 1 (Light Air) (kn → Bft 1)
Formula
1 kn = 0.6430549999999999 Bft 1Conversion Table
| kn | Bft 1 |
|---|---|
| 0 | 0 |
| 1.0000 | 0.64305 |
| 2.0000 | 1.2861 |
| 3.0000 | 1.9292 |
| 4.0000 | 2.5722 |
| 5.0000 | 3.2153 |
| 6.0000 | 3.8583 |
| 7.0000 | 4.5014 |
| 8.0000 | 5.1444 |
| 9.0000 | 5.7875 |
| 10.000 | 6.4306 |
| 11.000 | 7.0736 |
| 12.000 | 7.7167 |
| 13.000 | 8.3597 |
| 14.000 | 9.0028 |
| 15.000 | 9.6458 |
| 16.000 | 10.289 |
| 17.000 | 10.932 |
| 18.000 | 11.575 |
| 19.000 | 12.218 |
| kn | Bft 1 |
|---|---|
| 20.000 | 12.861 |
| 21.000 | 13.504 |
| 22.000 | 14.147 |
| 23.000 | 14.790 |
| 24.000 | 15.433 |
| 25.000 | 16.076 |
| 26.000 | 16.719 |
| 27.000 | 17.362 |
| 28.000 | 18.006 |
| 29.000 | 18.649 |
| 30.000 | 19.292 |
| 31.000 | 19.935 |
| 32.000 | 20.578 |
| 33.000 | 21.221 |
| 34.000 | 21.864 |
| 35.000 | 22.507 |
| 36.000 | 23.150 |
| 37.000 | 23.793 |
| 38.000 | 24.436 |
| 39.000 | 25.079 |
| kn | Bft 1 |
|---|---|
| 40.000 | 25.722 |
| 41.000 | 26.365 |
| 42.000 | 27.008 |
| 43.000 | 27.651 |
| 44.000 | 28.294 |
| 45.000 | 28.937 |
| 46.000 | 29.581 |
| 47.000 | 30.224 |
| 48.000 | 30.867 |
| 49.000 | 31.510 |
| 50.000 | 32.153 |
| 51.000 | 32.796 |
| 52.000 | 33.439 |
| 53.000 | 34.082 |
| 54.000 | 34.725 |
| 55.000 | 35.368 |
| 56.000 | 36.011 |
| 57.000 | 36.654 |
| 58.000 | 37.297 |
| 59.000 | 37.940 |
| kn | Bft 1 |
|---|---|
| 60.000 | 38.583 |
| 61.000 | 39.226 |
| 62.000 | 39.869 |
| 63.000 | 40.512 |
| 64.000 | 41.156 |
| 65.000 | 41.799 |
| 66.000 | 42.442 |
| 67.000 | 43.085 |
| 68.000 | 43.728 |
| 69.000 | 44.371 |
| 70.000 | 45.014 |
| 71.000 | 45.657 |
| 72.000 | 46.300 |
| 73.000 | 46.943 |
| 74.000 | 47.586 |
| 75.000 | 48.229 |
| 76.000 | 48.872 |
| 77.000 | 49.515 |
| 78.000 | 50.158 |
| 79.000 | 50.801 |
Knots to Beaufort 1 (Light Air) Conversion
Converting Knots (kn) to Beaufort 1 (Light Air) (Bft 1) is a common speed conversion. 1 kn equals 0.643055 Bft 1. For example, 100 kn is equal to 64.3055 Bft 1.
Quick Reference Values
1 kn = 0.643055 Bft 1. 5 kn = 3.215275 Bft 1. 10 kn = 6.43055 Bft 1. 25 kn = 16.076375 Bft 1. 50 kn = 32.15275 Bft 1. 100 kn = 64.3055 Bft 1.
What is Knots?
Knots (kn) is a unit of speed. A knot is a unit of speed equal to one nautical mile per hour. It precisely corresponds to 1.852 kilometers per hour or 0.51444 meters per second. The knot is internationally recognized for maritime and aviation speed measurements and is defined using the international nautical mile of exactly 1852 meters [nist-si-guide]. The knot originated from the practice of measuring speed at sea using a 'log line' with knots tied at regular intervals. The term and unit were standardized with the adoption of the international nautical mile in 1929 by the International Hydrographic Organization [nist-si-guide]. Knots are the standard speed unit in global maritime navigation and aviation. Countries and organizations like the International Maritime Organization (IMO) and International Civil Aviation Organization (ICAO) mandate its use for vessel and aircraft speed reporting [nist-si-guide].
What is Beaufort 1 (Light Air)?
Beaufort 1 (Light Air) (Bft 1) is a unit of speed. Beaufort 1 represents a light air wind speed ranging from 1 to 3 knots (0.5 to 1.5 m/s). It corresponds to slight wind felt on the face and leaves rustling. The Beaufort scale is an empirical measure of wind speed based on observed sea or land conditions [nist-si-guide]. The Beaufort scale was developed in 1805 by Sir Francis Beaufort of the British Royal Navy to standardize wind force descriptions. The scale was later extended and formalized for meteorological use in the 20th century [nist-si-guide]. The scale is used globally by meteorological services and mariners to estimate wind conditions without instruments. Beaufort 1 remains a key reference in weather forecasting and sailing, especially in Europe and North America [nist-si-guide].
Common Misspellings
People often search for this conversion using these alternate spellings: knotz, knotses, knotss, knotts, beaufort one, beaufort-01, boefort 1. All of these refer to the Knots to Beaufort 1 (Light Air) conversion.