Orbital Period & Velocity
Calculate orbital velocity and period for a circular orbit around Earth. Input either altitude above surface or distance from Earth's center. Assumes a spherical Earth (6371 km radius) and neglects atmospheric drag.
Results:
Orbit Visualization
Hover over the visualization
to see orbit details.
Open Source and Easy to Use Elsewhere
This tool is open source and the underlying logic is fully transparent. You can inspect the code, understand the calculations, and contribute improvements. If you want to use the tool in your own website, course page, or learning platform, you can also embed it directly and start from a ready-made iframe setup for this exact tool.
Open source: review the implementation and see how the results are produced.
Embeddable: preview this tool, copy the iframe, and use it in your own site or LMS.