mechanics
Acceleration Calculator
Solve any variable across all three constant-acceleration equations, find every non-negative time root, convert SI or common units, and inspect position and velocity plots.
Calculator
Formula
v = u + at; s = ut + ½at²; v² = u² + 2as
- a — Acceleration
- m/s²
- u — Initial velocity
- m/s · km/h
- v — Final velocity
- m/s · km/h
- t — Elapsed time
- s · min · h
Assumptions and limits
- Acceleration is constant over the modeled interval.
Example
Speed increases from 0 to 20 m/s in 4 s
The calculator starts with an editable example.
Sources
- University Physics Volume 1 — OpenStax
Frequently asked questions
Are my inputs uploaded?
No. This calculator runs locally in your browser. Inputs are placed in a URL only when you explicitly copy a share link.
Why are units converted first?
Canonical units prevent scale errors when inputs use mixed units. The result is converted back to your selected output unit afterward.
Does the result replace professional judgment?
No. The result applies only to the stated model and assumptions. Qualified people should review high-risk engineering, medical, or laboratory decisions.