Knots to Second Cosmic Velocity (kn → v2)
Formula
1 kn = 0.0000459325 v2Conversion Table
| kn | v2 |
|---|---|
| 0 | 0 |
| 1.0000 | 0.000045933 |
| 2.0000 | 0.000091865 |
| 3.0000 | 0.00013780 |
| 4.0000 | 0.00018373 |
| 5.0000 | 0.00022966 |
| 6.0000 | 0.00027560 |
| 7.0000 | 0.00032153 |
| 8.0000 | 0.00036746 |
| 9.0000 | 0.00041339 |
| 10.000 | 0.00045933 |
| 11.000 | 0.00050526 |
| 12.000 | 0.00055119 |
| 13.000 | 0.00059712 |
| 14.000 | 0.00064306 |
| 15.000 | 0.00068899 |
| 16.000 | 0.00073492 |
| 17.000 | 0.00078085 |
| 18.000 | 0.00082679 |
| 19.000 | 0.00087272 |
| kn | v2 |
|---|---|
| 20.000 | 0.00091865 |
| 21.000 | 0.00096458 |
| 22.000 | 0.0010105 |
| 23.000 | 0.0010564 |
| 24.000 | 0.0011024 |
| 25.000 | 0.0011483 |
| 26.000 | 0.0011942 |
| 27.000 | 0.0012402 |
| 28.000 | 0.0012861 |
| 29.000 | 0.0013320 |
| 30.000 | 0.0013780 |
| 31.000 | 0.0014239 |
| 32.000 | 0.0014698 |
| 33.000 | 0.0015158 |
| 34.000 | 0.0015617 |
| 35.000 | 0.0016076 |
| 36.000 | 0.0016536 |
| 37.000 | 0.0016995 |
| 38.000 | 0.0017454 |
| 39.000 | 0.0017914 |
| kn | v2 |
|---|---|
| 40.000 | 0.0018373 |
| 41.000 | 0.0018832 |
| 42.000 | 0.0019292 |
| 43.000 | 0.0019751 |
| 44.000 | 0.0020210 |
| 45.000 | 0.0020670 |
| 46.000 | 0.0021129 |
| 47.000 | 0.0021588 |
| 48.000 | 0.0022048 |
| 49.000 | 0.0022507 |
| 50.000 | 0.0022966 |
| 51.000 | 0.0023426 |
| 52.000 | 0.0023885 |
| 53.000 | 0.0024344 |
| 54.000 | 0.0024804 |
| 55.000 | 0.0025263 |
| 56.000 | 0.0025722 |
| 57.000 | 0.0026182 |
| 58.000 | 0.0026641 |
| 59.000 | 0.0027100 |
| kn | v2 |
|---|---|
| 60.000 | 0.0027560 |
| 61.000 | 0.0028019 |
| 62.000 | 0.0028478 |
| 63.000 | 0.0028937 |
| 64.000 | 0.0029397 |
| 65.000 | 0.0029856 |
| 66.000 | 0.0030315 |
| 67.000 | 0.0030775 |
| 68.000 | 0.0031234 |
| 69.000 | 0.0031693 |
| 70.000 | 0.0032153 |
| 71.000 | 0.0032612 |
| 72.000 | 0.0033071 |
| 73.000 | 0.0033531 |
| 74.000 | 0.0033990 |
| 75.000 | 0.0034449 |
| 76.000 | 0.0034909 |
| 77.000 | 0.0035368 |
| 78.000 | 0.0035827 |
| 79.000 | 0.0036287 |
Knots to Second Cosmic Velocity Conversion
Converting Knots (kn) to Second Cosmic Velocity (v2) is a common speed conversion. 1 kn equals 0.000046 v2. For example, 100 kn is equal to 0.004593 v2.
Quick Reference Values
1 kn = 0.000046 v2. 5 kn = 0.00023 v2. 10 kn = 0.000459 v2. 25 kn = 0.001148 v2. 50 kn = 0.002297 v2. 100 kn = 0.004593 v2.
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 Second Cosmic Velocity?
Second Cosmic Velocity (v2) is a unit of speed. The second cosmic velocity, also known as escape velocity, is the minimum speed needed to break free from a planet’s gravitational field without further propulsion. For Earth, this speed is about 11.2 km/s, calculated by √(2GM/R) where G is the gravitational constant, M is Earth’s mass, and R its radius [nist-cuu]. Escape velocity was first derived from Newtonian gravity principles in the 17th century and later refined by physicists studying celestial mechanics. It is fundamental for understanding spacecraft trajectory planning [nist-cuu]. Escape velocity is essential in aerospace and astronautics worldwide, guiding mission planning for launches from Earth and other celestial bodies. It is standard knowledge in physics and engineering curricula globally [nist-cuu].
Common Misspellings
People often search for this conversion using these alternate spellings: knotz, knotses, knotss, knotts, second cosmic velocity, cosmic velocity 2nd, escape velocity, cosmic velocity two, cosmic velocity 2. All of these refer to the Knots to Second Cosmic Velocity conversion.