Projectile at 45°, 20 m/s — Maximum Range
A projectile launched at 45° with 20 m/s achieves the maximum horizontal range of approximately 40.77 m on flat ground.
How to use this tool
- Enter launch velocity, launch angle, initial height and gravitational acceleration in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your horizontal range and the full breakdown beneath it.
45° is the optimal launch angle for maximum range on flat ground — confirm it with this calculator.
Frequently asked questions
- Which angle maximises range?
- 45° maximises range on flat ground. With an elevated launch point the optimal angle is slightly less than 45°.
- Can I use different gravity values?
- Yes — use 1.62 m/s² for the Moon, 3.72 for Mars, or 24.79 for Jupiter.