Convert Knots to Earth Escape Velocity
Convert Knots (kn) to Earth Escape Velocity (v_esc) instantly and accurately.
Conversion Formula
v_esc = kn × 4.599002722e-5
About Knots
A knot (kn) = 1 nautical mile per hour = 1,852/3,600 m/s ≈ 0.51444 m/s - the universal speed unit for aviation and maritime navigation (ICAO and IMO standard). GA aircraft cruise 100-140 kn; commercial airliners 450-480 kn; Concorde 1,176 kn (Mach 2). Container ships 18-22 kn; QM2 exceeds 30 kn. Beaufort Force 12 hurricane begins at 64 kn. Gulf Stream surface current 2-4 kn. 1 kn = 1.852 km/h = 1.15078 mph.
About Earth Escape Velocity
Earth's escape velocity = 11,186 m/s at the surface - v_esc = √(2GM/r). A spacecraft launched at this speed (any direction) escapes on a parabolic trajectory; less gives an elliptical orbit. Apollo's trans-lunar injection exceeded this to reach the Moon. Voyager, Pioneer, and New Horizons all exceeded 11.2 km/s at launch. Moon escape velocity 2.38 km/s; Mars 5.03 km/s; Jupiter 59.5 km/s. 1 Earth v_esc ≈ 11,186 m/s = 40,270 km/h.
Quick Reference Table
| Knots (kn) | Earth Escape Velocity (v_esc) |
|---|---|
| 1 kn | 4.599 × 10-5 v_esc |
| 2 kn | 9.198 × 10-5 v_esc |
| 5 kn | 0.00022995 v_esc |
| 10 kn | 0.0004599 v_esc |
| 25 kn | 0.00114975 v_esc |
| 50 kn | 0.0022995 v_esc |
| 100 kn | 0.004599 v_esc |