Physics

Orbital Mechanics Calculator

Compute circular orbital speed, escape speed, and orbital period.

Orbital Mechanics Calculator estimates orbital speed, period, and related values for simplified orbit scenarios. It is useful for physics education and rough mission concept checks. The tool provides fast first-order outputs from standard equations. Use it as a preliminary estimate before high-fidelity modeling.

Orbital Inputs

Assumes circular orbit around a spherical body radius of Earth.

Result

Orbital radius: 6771.000 km

Circular orbital speed: 7672.490413 m/s

Local escape speed: 10850.540000 m/s

Orbital period: 5544.933 s (1h 32m 25s)

How to use this tool

Enter central body parameters and orbital altitude/radius.
Run the calculator to compute orbital metrics.
Compare outputs for different altitudes to understand orbital scaling.

Aerospace learning resources

Promote astrodynamics courses, space simulation tools, and STEM content.

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