Escape Velocity from Mars
Mars has an escape velocity of about 5 027 m/s (5.03 km/s), roughly 45% of Earth's.
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.
Mars's lower mass and smaller radius result in an escape velocity of about 5 km/s, making it a more reachable target for return missions.
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.