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Orbital Payload Calculator

Orbital Payload Calculator is a utility mod for Kerbal Space Program designed to help players calculate rocket payload capacity for various target orbits.

Latest version
2.2.3
Downloads
1.3k
Rating
9
Licence
MIT
Updated
2 mo ago
Available on
SpaceDock

Download

From Orbital Payload Calculator’s own host. Nothing is re-hosted here.

2.2.3release8 Jul 2026

orbital-payload-calculator-2.2.3.zip

Older versions8
  • 2.2.28 Jul 2026Get
  • 2.2.123 May 2026Get
  • 2.2.021 Mar 2026Get
  • 2.1.127 Feb 2026Get
  • 2.1.025 Feb 2026Get
  • 2.0.025 Feb 2026Get
  • 1.1.023 Feb 2026Get
  • 1.0.021 Feb 2026Get

Frequently asked

What licence is Orbital Payload Calculator under?

MIT, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install Orbital Payload Calculator?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Kerbal Space Program all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download Orbital Payload Calculator safely?

From the author's own page on SpaceDock, which is where the data here is synced from. IndexGG never mirrors, re-hosts or repackages a file: every download button points at the original source, so you get exactly what the author published.

Which Kerbal Space Program versions does Orbital Payload Calculator work on?

The author has not declared a supported version in the metadata we sync, so there is nothing here we can state as fact. Check the project's own page before installing it, and treat an old mod with no declared version as untested on modern Kerbal Space Program.

Last checked 1 mo ago against SpaceDock. We do not host files and we do not republish descriptions; every download link points at the author’s own release.