Curve Calculator

Calculate horizontal and vertical curve elements. Enter any two known values to solve for all parameters.

Input Parameters

Select two known values to solve for all horizontal curve elements.

Parameter 1

Parameter 2

degrees

Radius (R)

500.0000 ft

Degree of Curve (D)

11°27′32.96″ (11.4592°)

Delta / Central Angle (Δ)

29°59′60.00″ (30.0000°)

Tangent (T)

133.9746 ft

Length (L)

261.7994 ft

External (E)

17.6381 ft

Middle Ordinate (M)

17.0371 ft

Long Chord (LC)

258.8190 ft