Launch Vehicle Selection Calculator

Payload capacity comparison across launch providers.

Payload mass (kg)

Required delta-v (km/s)

Specific impulse (sec)

Dry mass fraction (%)

Cost per kg to orbit ($)

Tab to move between fields

Propellant mass (kg)

104,021

Total launch mass (kg)

120,579

Launch cost ($M)

13.6

Mass ratio (m₀/m_f)21.8

Structural mass (kg)11,558

Payload fraction (%)4.15

Propellant fraction (%)86.27

Exhaust velocity (km/s)3.05

How to Use This Calculator

Enter payload mass (kg) and required delta-V (km/s) for your target orbit.
Set propellant specific impulse (sec) and dry mass fraction (%) for the launch vehicle stage.
Enter cost per kg to orbit ($) for the candidate launch vehicle.
Review mass ratio, propellant mass, structural mass, total launch mass, and payload fraction.
Compare payload fraction across launch vehicle options to identify the most mass-efficient choice.

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