Time of Flight Calculator (Projectile Motion)

Find how long a projectile stays in the air.

Launch speed

Launch angle (°)

Gravity (m/s²)

Time of flight 2.883

Formula: t = 2·v₀·sinθ ÷ g

Step-by-step with your numbers:

1. Values used:

2. Launch speed = 20

3. Launch angle = 45 °

4. Gravity = 9.81 m/s²

6. Time of flight = 2.883

Did we solve your problem today?

Find the total airborne time of a projectile launched from level ground.

The math behind it

t = 2·v₀·sinθ ÷ g, double the time it takes to reach the top of the arc.

20 m/s at 45° → 2.88 s.

Does mass affect the time?

No — ignoring air resistance, only the vertical velocity and gravity matter.