Explore our open-source aerospace tools, calculators, and simulators
Calculate Mach number and local speed of sound based on airspeed and altitude.
Determine the Reynolds number for various fluid flow scenarios and conditions.
Calculate property changes across a normal shock wave in supersonic flow conditions.
Calculate pressure, temperature, and density ratios across an isentropic flow.
Calculate lift and drag forces, coefficients, stall speed estimation, and basic aerodynamic performance.
Convert between common units frequently used in aerospace engineering calculations.
Convert between AU, km, m, light‑years, parsecs, and lunar distance.
Convert between Geodetic (Lat/Lon/Alt), ECEF, UTM, and MGRS coordinates.
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Calculate orbital period and velocity characteristics for satellites in circular orbits.
Calculate the required delta-v for efficient Hohmann transfer orbital maneuvers.
Input delta-v values for mission phases to calculate total requirements.
Estimate rocket delta-v performance using the Tsiolkovsky rocket equation.
Calculate propellant mass fraction based on initial and final masses.
Calculate Thrust-to-Weight Ratio for aircraft or rockets.
Convert specific impulse values between seconds and velocity units.