Terminal Velocity Calculator

Calculate the maximum velocity an object reaches when falling through a fluid (like air or water)

ℹ️ Typical values: 0.5 (sphere), 1.15 (human), 1.3 (flat plate)
ℹ️ Air at sea level: ~1.225, Water: ~1000

Frequently Asked Questions

Terminal velocity is the maximum velocity attainable by an object as it falls through a fluid (like air or water). It occurs when the sum of the drag force (F₈) and buoyancy equals the downward force of gravity (F₉) acting on the object.

Several factors influence terminal velocity:

  • Mass of the object – heavier objects have higher terminal velocities
  • Drag coefficient – depends on the object’s shape and surface roughness
  • Cross-sectional area – larger areas create more drag
  • Fluid density – denser fluids create more resistance
  • Gravitational acceleration – varies slightly by location

For a human skydiver in a belly-to-earth (freeflying) position:

  • Typical terminal velocity: ~53 m/s (190 km/h or 118 mph)
  • In a head-down position: up to 90 m/s (320 km/h or 200 mph)
  • With a wingsuit: ~40 m/s (140 km/h or 90 mph)

These values assume standard atmospheric conditions at sea level.