EngineeringToolkit

Rocket Equation Formula

Tsiolkovsky rocket equation for velocity change.

Formula

Δv = ve × ln(m₀/mf)

Discipline: Aerospace Engineering. Result unit: m/s.

Variables and units

  • Δv — Delta-V (m/s): Change in velocity
  • ve — Exhaust Velocity (m/s): Effective exhaust velocity
  • m₀ — Initial Mass (kg): Initial total mass
  • mf — Final Mass (kg): Final mass