Calculate the height from which an object must fall to reach a certain velocity or fall time.
Fall Parameters
Calculation Results
Enter parameters to calculate fall height
About this calculator
Quick Reference
hHeight (meters)
vImpact velocity (m/s)
v₀Initial velocity (m/s)
g9.81 m/s² (Earth gravity)
tt = (v - v₀)/g (Fall time)
Overview
Free fall height calculations determine how high an object must fall to achieve a certain impact velocity or fall time. Using the kinematic equations, height h = v²/(2g) for objects starting from rest, or more complex calculations for objects with initial velocity.
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Pro Tips
Height is measured vertically from the starting point to the impact point.
Impact velocity determines the kinetic energy upon landing.
Safe fall heights are limited by human tolerance to deceleration forces.
Atmospheric density affects terminal velocity at extreme heights.
