Calculation tools

This page lists various fan-made tools that can help calculations related to the gameplay of Kerbal Space Program. Unlike addons, they do not directly influence the game, as they are run separately.

Online tools and calculators

Orbit and maneuver calculators

Title	Developer	Desciption	Last Update	KSP Version compatibility	Notes	Forum post	Link
Interactive illustrated interplanetary guide and calculator	Olex	Calculates Δv and angles for orbital transfer between celestial bodies	2013	0.22	Based on this forum post	forum post	http://ksp.olex.biz/
Launch Window Planner	alexmoon	Provides a total Δv calculation for orbital transfer based on launch parameters	6 Apr 2014	0.23.5	open source	forum post	http://alexmoon.github.io/ksp/
KSP Aerobraking Calculator	alterbaron	Calculates a maneuver to perform the intended aerobraking	20 Nov 2013	0.22	open source	forum post	http://alterbaron.github.io/ksp_aerocalc/
Where can I go?	GavinZac	Calculates possible destinations based on given Δv			source code	forum post	http://mononyk.us/wherecanigo.php
MrFibble's KSP Calculators	MrFlibble1978	Tools to calculate information on orbits	Feb 2014	0.23		steam community thread	Satellite Distribution Calculator Orbital Period Calculator KSP Multi Calculator
Delta V Calculator	interwound	Gives Δv required to reach a celestial body with or without a round trip					http://deltavmap.com/
Lead angle calculator		Calculates the lead angle to reach a target orbit					http://instacalc.com/16221

Part and construction calculators

Title	Developer	Desciption	Last Update	KSP Version compatibility	Notes	Forum post	Link
KSP Optimal Rocket Calculator	GaryCourt	Generates a rocket design optimized for the given parameters	1 Apr 2014	0.23.5	open source	forum post	http://garycourt.github.io/korc/
KSP Parachute Calculator	check	Calculates the needed mass and type of parachutes for landers	19 Sep 2013	0.21.1		forum post	http://ksp.freeiz.com/
Engine Cluster Calculator	blizzy	Generates an engine layout for a given payload (asparagus staging)	8 Apr 2014	0.23.5	Based on this forum post		http://blizzy.de/asparagus/
KSP Calculator	Cameron Hessler	Escape velocity and stage Δv calculators	2012	0.16			http://www.kerbalspacecalculator.net16.net/index.php

Deprecated

The tools in this table are known but have either fallen into disrepair or are too old to be relevant to recent versions of KSP

Title	Developer	Desciption	Last Update	KSP Version compatibility	Notes	Forum post	Link
Fairing Factory	Nathan Nifong	Generates a downloadable fairing based on the given design				lost	http://nathannifong.com/FairingFactory/

Offline applications

These tools can be downloaded and used offline. Keep in mind that the presence of an application here does not mean it has been tested or is otherwise trustworthy - apply reasonable caution when downloading and running the below applications. Generally, if something is widely used, it should be safe.

Title	Developer	Desciption	Last Update	KSP Version compatibility	Notes	Forum post	Link
KSP Utilities	ROFLCopter64bit	Utility collection primarily for save file handling and analysis	4 Apr 2014	0.23.5	open source (GPL)	forum post	(multiple downloads - see forum post)
Trajectory Optimization Tool	Arrowstar	Helps find optimal burn trajectories for interplanetary transfers	9 Feb 2014	0.23	Matlab-based	forum post	(has dependencies - see forum post)
KSP Rocket Calculator	VRGhost	Calculates rocket properties and aids in the design process	31 Oct 2012	0.17.1	open source		(python script - use source)

Deprecated

The tools in this table are known but have either fallen into disrepair or are too old to be relevant to recent versions of KSP

Title	Developer	Desciption	Last Update	KSP Version compatibility	Notes	Forum post	Link
KSP Orbital Calculator	Warringer	Calculates orbital speeds for circular orbit injections			open source	forum post	Google Code (zip file)
KSP Orbit Mechanic	tgwEcho	Optimizes orbits	18 Dec 2011			TGW forum post	mediafire (zip file)

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Mobile

Title	Developer	Desciption	Last Update	KSP Version compatibility	Platform	Notes	Forum post	Link
KSP Orbit Calculator	Spencer Egart	Calculates Δv and angles for orbital transfer between celestial bodies (see notes)	27 Jul 2013	0.23.5 (see notes)	Android (2.3.3+)	based on Olex's calculator		Google Play link
KSP Orbit	Eric Meythaler	Calculates orbit characteristics	20 Jul 2011	0.8.5	Android (2.1+)			Google Play link
KSP Delta-V Calculator	Iodyne Labs	Calculates Δv per stage	10 Apr 2014	0.23.5	Android (4+)			Google Play link

External tools not directly related to KSP

Title	Developer	Desciption	Last Update	Notes	Forum post	Link
Scilab	Scilab Enterprises	General scientific computing software - contains aerospace and celestial mechanics modules (ATOMS)	2013	open source Can convert Matlab scripts to its own format		http://www.scilab.org/
GNU Octave	John W. Eaton (and others)	General scientific computing software - no specific related modules or packages, but might be preferable for some	2013	open source Syntax is highly compatible with Matlab		http://www.gnu.org/software/octave/index.html
Sage	William A. Stein (and others)	General scientific computing software - utilizes other computational software as part of its backend	30 Jan 2014	open source Very practical for python users		http://www.sagemath.org/
Anaconda	Continuum Analytics	General scientific computing software - primarily a python scientific computing frontend	9 Apr 2014	An alternative to Sage on Windows for python computing		https://store.continuum.io/cshop/anaconda/