Miles per Hour to Second Cosmic Velocity (mph → v2)
Formula
1 mph = 0.00003991428571428571 v2Conversion Table
| mph | v2 |
|---|---|
| 0 | 0 |
| 1.0000 | 0.000039914 |
| 2.0000 | 0.000079829 |
| 3.0000 | 0.00011974 |
| 4.0000 | 0.00015966 |
| 5.0000 | 0.00019957 |
| 6.0000 | 0.00023949 |
| 7.0000 | 0.00027940 |
| 8.0000 | 0.00031931 |
| 9.0000 | 0.00035923 |
| 10.000 | 0.00039914 |
| 11.000 | 0.00043906 |
| 12.000 | 0.00047897 |
| 13.000 | 0.00051889 |
| 14.000 | 0.00055880 |
| 15.000 | 0.00059871 |
| 16.000 | 0.00063863 |
| 17.000 | 0.00067854 |
| 18.000 | 0.00071846 |
| 19.000 | 0.00075837 |
| mph | v2 |
|---|---|
| 20.000 | 0.00079829 |
| 21.000 | 0.00083820 |
| 22.000 | 0.00087811 |
| 23.000 | 0.00091803 |
| 24.000 | 0.00095794 |
| 25.000 | 0.00099786 |
| 26.000 | 0.0010378 |
| 27.000 | 0.0010777 |
| 28.000 | 0.0011176 |
| 29.000 | 0.0011575 |
| 30.000 | 0.0011974 |
| 31.000 | 0.0012373 |
| 32.000 | 0.0012773 |
| 33.000 | 0.0013172 |
| 34.000 | 0.0013571 |
| 35.000 | 0.0013970 |
| 36.000 | 0.0014369 |
| 37.000 | 0.0014768 |
| 38.000 | 0.0015167 |
| 39.000 | 0.0015567 |
| mph | v2 |
|---|---|
| 40.000 | 0.0015966 |
| 41.000 | 0.0016365 |
| 42.000 | 0.0016764 |
| 43.000 | 0.0017163 |
| 44.000 | 0.0017562 |
| 45.000 | 0.0017961 |
| 46.000 | 0.0018361 |
| 47.000 | 0.0018760 |
| 48.000 | 0.0019159 |
| 49.000 | 0.0019558 |
| 50.000 | 0.0019957 |
| 51.000 | 0.0020356 |
| 52.000 | 0.0020755 |
| 53.000 | 0.0021155 |
| 54.000 | 0.0021554 |
| 55.000 | 0.0021953 |
| 56.000 | 0.0022352 |
| 57.000 | 0.0022751 |
| 58.000 | 0.0023150 |
| 59.000 | 0.0023549 |
| mph | v2 |
|---|---|
| 60.000 | 0.0023949 |
| 61.000 | 0.0024348 |
| 62.000 | 0.0024747 |
| 63.000 | 0.0025146 |
| 64.000 | 0.0025545 |
| 65.000 | 0.0025944 |
| 66.000 | 0.0026343 |
| 67.000 | 0.0026743 |
| 68.000 | 0.0027142 |
| 69.000 | 0.0027541 |
| 70.000 | 0.0027940 |
| 71.000 | 0.0028339 |
| 72.000 | 0.0028738 |
| 73.000 | 0.0029137 |
| 74.000 | 0.0029537 |
| 75.000 | 0.0029936 |
| 76.000 | 0.0030335 |
| 77.000 | 0.0030734 |
| 78.000 | 0.0031133 |
| 79.000 | 0.0031532 |
Miles per Hour to Second Cosmic Velocity Conversion
Converting Miles per Hour (mph) to Second Cosmic Velocity (v2) is a common speed conversion. 1 mph equals 0.00004 v2. For example, 100 mph is equal to 0.003991 v2.
Quick Reference Values
1 mph = 0.00004 v2. 5 mph = 0.0002 v2. 10 mph = 0.000399 v2. 25 mph = 0.000998 v2. 50 mph = 0.001996 v2. 100 mph = 0.003991 v2.
What is Miles per Hour?
Miles per Hour (mph) is a unit of speed. Miles per hour measure speed as miles traveled in one hour. One mile equals 1,609.344 meters, so 1 mph equals approximately 0.44704 meters per second [bipm-si-brochure]. This unit is widely used for vehicle speed and speed limits in non-metric countries. Miles per hour originated from the mile and hour units standardized in the British Imperial system. It became common in transportation with the rise of automobiles and was internationally recognized with the mile's 1959 definition [bipm-si-brochure]. The USA, United Kingdom, and several Commonwealth nations use mph for road speed limits and vehicle speeds. It remains standard in aviation and motorsports within these countries, despite metrication efforts [nist-sp-811].
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: miles per hour, mile per hour, mi/h, mphs, second cosmic velocity, cosmic velocity 2nd, escape velocity, cosmic velocity two, cosmic velocity 2. All of these refer to the Miles per Hour to Second Cosmic Velocity conversion.