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Projectile Motion Calculator
Get the range, maximum height, time of flight and a full trajectory table from an initial speed and angle.
Projectile motion
Range: —
Maximum height: —
Time of flight: —
How to use the Projectile Motion Calculator
- Enter the initial speed and the launch angle in degrees.
- Choose the gravity of Earth, the Moon, Mars or Jupiter.
- Read the range, apex height and flight time, then the trajectory table.
Features
- Range, maximum height and time of flight
- Four gravity settings including the Moon and Mars
- Trajectory table with position at each moment
- Air resistance ignored, as in textbook problems
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Frequently Asked Questions
Common questions about the free online projectile motion calculator.
Type the initial speed in metres per second and the launch angle in degrees, then read the
range, height and flight time instantly.
The range is the horizontal speed multiplied by the flight time. For level ground it equals v
squared times the sine of twice the angle, divided by g.
The maximum height is the square of the vertical speed divided by twice gravity, which is the
moment the upward speed reaches zero.
The time of flight is twice the vertical speed divided by gravity, because the fall takes
exactly as long as the rise.
On level ground with no air resistance the greatest range comes from a launch angle of forty
five degrees.
Drag depends on the shape and speed of the object, so it is left out to match the standard
physics model used in textbooks.
Yes. It is fully responsive and works in any modern browser on a phone, tablet or desktop.
Yes. It is completely free, needs no account and there are no usage limits.
Last updated: October 10, 2026