Space Systems Engineering Calculators
Free, instant-answer calculators for mission concept trade studies. No signup required. Full spreadsheet export, mission saves, traceability, and 95+ additional calculators are in the Aerospace Pack.
Link Budget Calculator
RF link analysis for spacecraft comms. EIRP, path loss, G/T, C/N₀, margin — live as you type.
Open tool →Spacecraft Mass Budget
Subsystem mass rollup with reserve margins. Enter per-subsystem dry mass, see total CBE + MEV with 20/10/5% reserves.
Open tool →Delta-V / Rocket Equation
Tsiolkovsky rocket equation solver. Input Isp, wet/dry mass → Δv. Or target Δv → required propellant mass.
Open tool →GSD Calculator
Ground Sample Distance for imaging payloads. Altitude, focal length, and pixel pitch → GSD at nadir and off-nadir.
Open tool →Orbit Propagator (Kepler)
Simple Keplerian orbit propagator. Altitude, inclination, eccentricity → period, ground velocity, eclipse fraction.
Open tool →Want the other 95+ calculators?
High-fidelity orbit propagator, constellation optimizer, Lambert solver, cislunar design studio, sensitivity & Monte Carlo analysis, full SMAD 8-phase workflow with SRR/PDR/CDR gate packages, and AI-assisted requirements generation are part of the Aerospace Pack.