Vertical Curve Calculator
Result
Vertical Curve Calculator Calculate parabolic vertical curve elevations for road design: y = PVC_elev + g₁x + (g₂−g₁)/(2L) × x². — free online calculator.
Formula
- Vertical Curve Calculator calculates its result from Pvc Elev, G1, X, G2, Length. It uses the formula y = PVC_elev + g₁x + (g₂−g₁)/(2L) × x²; High/Low point: x = −g₁L/(g₂−g₁). Change any input to recalculate the result instantly.
- The main inputs are Pvc Elev, G1, X, G2, Length. Enter them in the units and format shown in the calculator.
- Keep measurements and project assumptions consistent before comparing or combining values.
- Changing any input above recalculates the result with the same calculation engine used by this page.
Example: Vertical Curve
- Pvc Elev: 2
- G1: 3
- X: 4
- G2: 5
- Length: 6
Using Pvc Elev = 2, G1 = 3, X = 4, G2 = 5, Length = 6, the calculated result is -9.
Sample result: Calculating…
Frequently asked questions
What does the Vertical Curve calculate?
Vertical Curve Calculator Calculate parabolic vertical curve elevations for road design: y = PVC_elev + g₁x + (g₂−g₁)/(2L) × x². — free online calculator.
Which values should I enter?
Enter Pvc Elev, G1, X, G2, Length using the units and format shown beside each field.
What formula does this calculator use?
The calculator uses the following relationship: y = PVC_elev + g₁x + (g₂−g₁)/(2L) × x²; High/Low point: x = −g₁L/(g₂−g₁).
Why might my result differ from another source?
Results can differ when another source uses different units, rounding rules, conventions or assumptions. Compare the inputs and definitions before comparing results.
Does the result update automatically?
Yes. Changing an input updates the result using the same calculation engine shown on this page.