How this calculator works
Enter mass (kg), frontal area (m²), drag coefficient, fluid density (kg/m³). CalcStack applies the displayed formula and reports each intermediate planning value with the units shown.
Formula / method
vₜ = √(2mg ÷ ρCᴅA)
Worked example
An 80 kg body with 0.7 m² area and Cd 1 in air has terminal velocity about 42.95 m/s.
Assumptions and limitations
Drag coefficient and frontal area remain constant in steady flow.
Posture, turbulence, altitude, lift and changing orientation are not modeled.