Vertical Curve Calculator

initial Roadway Grade (G1) : %
End Roadway Grade (G2) : %
Horizontal Length of Curve :
Vertical Curve Formula:

Vertical Curves are very important transition elements for highways. It provides a transition between two sloped roadways.

the parabolic formula for a vertical curve can be illustrated as:


epvc: elevation of the PVC

g1: Initial Roadway Grade (m/m)

g2: Final Roadway Grade (m/m)

L: Length of Curve (m) provides you helpful and handy calculator resources.