What angle gives maximum range?

45° gives the maximum horizontal range (for flat ground with no air resistance). Angles above and below 45° by the same amount give equal ranges (e.g., 30° and 60°).

Why is g = 9.8 m/s² used?

9.8 m/s² is the standard gravitational acceleration at Earth's surface. Exact value varies slightly with altitude and latitude.

Projectile Motion Calculator

Quick answer: Enter initial velocity and launch angle to get max height, range, and time of flight.

Calculate the full trajectory of a projectile: maximum height, horizontal range, time of flight, and velocity components. Enter initial velocity and launch angle.

Last reviewed: April 2026Report an error

Initial Velocity (m/s)

Launch Angle (°)

Initial Height (m)

Max Height

63.78 m

Max height: 63.78 m, range: 255.10 m, time of flight: 7.22 s.

Max Height (m)

63.78

Range (m)

255.10

Time of Flight (s)

7.22

Horizontal Velocity vX (m/s)

35.36

Vertical Velocity vY (m/s)

35.36

How to Use This Projectile Motion Calculator

1Enter the initial velocity (m/s).
2Enter the launch angle in degrees (0° = horizontal, 90° = straight up).
3Optionally enter initial height (default: 0).
4Read max height, range, time of flight, and velocity components.

Frequently Asked Questions

: 45° gives the maximum horizontal range (for flat ground with no air resistance). Angles above and below 45° by the same amount give equal ranges (e.g., 30° and 60°).
: 9.8 m/s² is the standard gravitational acceleration at Earth's surface. Exact value varies slightly with altitude and latitude.

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Projectile Motion Calculator

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Frequently Asked Questions

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