Free Fall Calculator
Calculate free fall time, distance, and velocity for 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
Frequently asked questions
What does Free Fall Calculator do?
Calculate free fall time, distance, and velocity for any planet gravity
What should I check in the result?
Check units, rates, dates and assumptions. Compare a simple case by hand before using the result for a decision.