Escape Velocity from the Moon
The Moon's escape velocity is about 2 380 m/s (2.38 km/s), far lower than Earth's due to its smaller mass.
How to use this tool
- Enter body mass m and body radius r in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your escape velocity and the full breakdown beneath it.
The Moon's weaker gravity means rockets need only about 2.38 km/s to escape — one reason Apollo missions could return using a small ascent stage.
Frequently asked questions
- What is Earth's escape velocity?
- Approximately 11.2 km/s (≈ 40,270 km/h). Rockets don't need to reach this speed instantly — they can achieve escape with continuous thrust at lower speeds.
- Does atmosphere affect escape velocity?
- Escape velocity is a theoretical value ignoring atmosphere. In practice, air resistance means rockets must carry extra fuel.