Game Jump Height Calculator
Enter gravity and target jump height to instantly get initial velocity, hang time, and full jump arc for your 2D platformer character.
Use the Game Jump Height Calculator
Jump Parameters
e.g. 9.8 m/s² real-world, 20–50 for snappy platformers
Height from ground to the top of the jump arc
Higher value = faster fall, more responsive landing feel
Results appear here after you calculate.
Initial Velocity
—
units/s (v₀)
Total Hang Time
—
seconds
Time to Apex
—
seconds
Fall Time
—
seconds
Equations Applied
Jump Arc Preview
Vertical position over time (not to game-world scale)
Code Snippet
Summary
Enter gravity and target jump height to instantly get initial velocity, hang time, and full jump arc for your 2D platformer character.
How it works
- Enter your game gravity (units per second squared) and the desired jump apex height.
- The calculator applies kinematic equations: v₀ = sqrt(2 × g × h) and t_apex = v₀ / g.
- Total hang time is 2 × t_apex (symmetric arc under constant gravity).
- Results update instantly so you can tweak values until the jump feels right.
Use cases
- Tune how high a platformer hero jumps for a given gravity setting.
- Match jump feel to a reference game by reverse-engineering its velocity.
- Calculate hang time so you can set animation frame budgets.
- Compare how gravity changes affect jump arc without writing code.
- Prototype physics constants before wiring them into your game engine.
- Check whether a jump clears a specific platform gap at a given height.
Frequently Asked Questions
Last updated: 2026-09-22 ·
Reviewed by Nham Vu