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Free Fall Calculator

Calculate free fall time, distance, and velocity for any planet gravity

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Free Fall Calculator

Calculate free fall time, distance, and velocity — choose any planet gravity

Solve for:

Known Value

s
kg

Results

Enter a value above to calculate

Free Fall Formulas

t = √(2d / g)
Time from distance
d = ½ × g × t²
Distance from time
v = g × t
Velocity from time
v = √(2 × g × d)
Velocity from distance
KE = ½ × m × v²
Kinetic energy at impact
g = 9.81 m/s²
Earth gravity constant

Assumes no air resistance (vacuum). g = gravitational acceleration · d = distance · t = time · v = velocity · m = mass · KE = kinetic energy