Convert rocket specific impulse into effective exhaust velocity, mass flow, and thrust power.
Exhaust velocity
3.24 km/s
3,236 m/s from Isp x g0
Mass flow
30.90 kg/s
100.0 kN divided by effective velocity
Jet power
161.81 MW
ideal kinetic power rate in the exhaust stream
Specific impulse in seconds becomes an equivalent exhaust velocity when multiplied by standard gravity.
3.24 km/s effective
NASA relation
c = Isp g0
Effective velocity
3,236 m/s / 3.24 km/s
Mass-flow consequence
30.90 kg/s for 100.0 kN
higher effective velocity lowers propellant flow
Kinetic power check
161.81 MW
0.5 mdot c squared, before real losses
This tool is open source and the underlying logic is fully transparent. You can inspect the code, understand the calculations, and contribute improvements. If you want to use the tool in your own website, course page, or learning platform, you can also embed it directly and start from a ready-made iframe setup for this exact tool.
Open source: review the implementation and see how the results are produced.
Embeddable: preview this tool, copy the iframe, and use it in your own site or LMS.
Convert rocket specific impulse into effective exhaust velocity, mass flow, and thrust power.
Exhaust velocity
3.24 km/s
3,236 m/s from Isp x g0
Mass flow
30.90 kg/s
100.0 kN divided by effective velocity
Jet power
161.81 MW
ideal kinetic power rate in the exhaust stream
Specific impulse in seconds becomes an equivalent exhaust velocity when multiplied by standard gravity.
3.24 km/s effective
NASA relation
c = Isp g0
Effective velocity
3,236 m/s / 3.24 km/s
Mass-flow consequence
30.90 kg/s for 100.0 kN
higher effective velocity lowers propellant flow
Kinetic power check
161.81 MW
0.5 mdot c squared, before real losses
This tool is open source and the underlying logic is fully transparent. You can inspect the code, understand the calculations, and contribute improvements. If you want to use the tool in your own website, course page, or learning platform, you can also embed it directly and start from a ready-made iframe setup for this exact tool.
Open source: review the implementation and see how the results are produced.
Embeddable: preview this tool, copy the iframe, and use it in your own site or LMS.