Propellant
Vehicle mass
Performance
Thrust F = ṁ·v_e—
Exhaust velocity v_e—
Isp (vacuum)—
Mass ratio m₀/m_f—
Δv (theoretical, full burn)—
Δv achieved so far—
Burn time (full)—
Current mass—
Tsiolkovsky rocket equation:
v_e = I_sp·g₀ F = ṁ·v_e
Δv = v_e·ln(m₀/m_f) = I_sp·g₀·ln(m₀/m_f)