Terminal Velocity Calculator
Calculate terminal velocity for falling objects. Account for air resistance and drag coefficients.

Sphere: 0.47, Flat plate: 1.28

Air: 1.225, Water: 1000

Force Diagram
Terminal Velocity
42.7836 m/s
meters/second
154.02 km/h
km per hour
95.71 mph
miles per hour
Weight: 784.8 N
Drag Force: 784.8 N
High Reynolds number - turbulent flow assumed
Fall Analysis
Velocity at 10s: 41.9201 m/s
Distance at 10s: 300.3951 m
Time to reach terminal velocity
90%: 6.4207s
95%: 7.9888s
99%: 11.5426s
Reference Values
Drag Coefficients
  • Sphere: 0.47
  • Streamlined: 0.04
  • Flat plate: 1.28
  • Car: 0.3
Fluid Densities
  • Air (sea level): 1.225
  • Air (10km): 0.4
  • Water: 1000

Formulas

At terminal velocity, drag force equals weight. The object stops accelerating.

v_t = √(2mg / ρAC_d)
v(t) = v_t × tanh(gt/v_t)

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