Orbit to Orbit Express (O2O Express) is a free browser-based platform for calculating satellite launch costs, comparing rockets, and planning space missions from Earth to LEO, GEO, the Moon, Mars, and beyond. Built by Vlad Algin, space logistics consultant based in Sammamish, Washington.
Operational rockets: SpaceX Falcon 9 ($2,720/kg LEO, 22,800 kg capacity), SpaceX Falcon Heavy ($1,400/kg LEO, 63,800 kg), SpaceX Starship (~$94/kg LEO, 150,000 kg), Rocket Lab Electron ($19,000/kg LEO, 300 kg), Blue Origin New Glenn (~$1,500/kg LEO, 45,000 kg), ULA Vulcan Centaur (27,200 kg LEO), ULA Atlas V (retiring — 9 flights remain April 2026), Firefly Alpha, Ariane 6 (EU, 21,650 kg), Vega-C (EU), Isar Spectrum (EU, in development), JAXA H3 (Japan, 6,500 kg), ISRO PSLV (India), ISRO LVM3 (India), Long March 5 (China, 25,000 kg), Long March 7 (China), Soyuz-2 (Russia), Angara A5 (Russia), Zhuque-2 (China), Terran R (in development), Neutron (in development).
Destinations supported: VLEO (160-450 km, 7.8 km/s delta-v), LEO (450-2,000 km, 9.4 km/s), MEO (9.4-11.5 km/s), HEO, GEO (35,786 km, 12.3 km/s), GSO, SSO (9.7 km/s), Polar Orbit (9.6 km/s), GTO (10.2 km/s), Molniya Orbit (10.0 km/s), Tundra Orbit (11.8 km/s), Trans-Lunar Injection (12.4 km/s), Earth-Sun L1/L2 Lagrange Points (13.5 km/s), Mars Transfer (16.3 km/s), Ceres (17.2 km/s), Europa/Jupiter (19.8 km/s), Enceladus/Saturn (21.5 km/s), Titan/Saturn (21.3 km/s).
Built by Vlad Algin, publisher of the Orbital Economics space economy newsletter on Substack. The platform serves aerospace engineers, researchers, universities, and space industry professionals worldwide. Contact: vlad@orbit2orbitexpress.com