Track Superelevation Calculator
Calculate theoretical equilibrium rail superelevation from speed, curve radius, and track gauge.
A QUICK WALKTHROUGH
How to use this tool
- Enter values in the stated units and matching measurement scope.
- Review formula assumptions and safety limits.
- Calculate locally in your browser.
Formula and limitations
h=v²G/(gR), with v in m/s, G and R in m, g=9.80665 m/s². This is theoretical equilibrium only, not an allowable design value. This does not approve a railway design, operating limit, or aquaculture practice.
Privacy
Inputs are processed locally and not uploaded.
GOOD TO KNOW
Common questions
What formula is used?
h = v²G/(gR), with v in m/s, G and R in metres, and g = 9.80665 m/s².
Can I use the result directly as a design value?
No. It is a theoretical equilibrium value, not an allowable design value or railway design or operating advice.