Terminal Velocity Calculator
Calculate terminal velocity from mass, area, drag coefficient, and fluid density. Solve for any variable. Includes skydiver, sphere, and raindrop presets.
Given mass, area, drag coefficient, and fluid density, compute v_t = sqrt(2 m g / (rho A Cd)).
Picking a preset fills mass, area, and drag coefficient. Choose "Custom object" to edit freely.
Falling object pushes this fluid out of the way. Density of air at sea level is 1.225 kg/m^3; water is about 1000 kg/m^3.
Mass of the falling object. Must be greater than zero.
Area facing the direction of motion. Belly-down skydiver is roughly 0.7 m^2; a 10 cm radius sphere is about 0.0314 m^2.
Dimensionless. Sphere 0.47, cube 1.05, parachute 1.5, airfoil 0.04, flat plate 1.28, skydiver belly 1.0.
Terminal velocity
42.776305 m/s
Velocity (m/s)
42.776305 m/s
Velocity (km/h)
153.994697 km/h
Velocity (mph)
95.687868 mph
Velocity (ft/s)
140.342207 ft/s
Mass (kg)
80 kg
Mass (lb)
176.36981 lb
Cross-sectional area
0.7 m^2
Drag Cd
1
Fluid density
1.225 kg/m^3
Gravity used
9.80665 m/s^2
Fast fall: in the range of a belly-down skydiver (~53 m/s, ~190 km/h).