CALCULATOR
Trapezoid Height Calculator
Find trapezoid altitude from area and parallel bases. Example: Area: 12 m², Parallel base a: 2 m, Parallel base b: 2 m gives 6 m. a,b are parallel base lengths; height perpendicular. Flat Euclidean geometry; enter stated meter measurements. No material thickness, waste, structural recommendation or curved earth. Display rounding does not change calculation.
a,b are parallel base lengths; height perpendicular. Flat Euclidean geometry; enter stated meter measurements. No material thickness, waste, structural recommendation or curved earth. Display rounding does not change calculation. Derivation: Solve A=(a+b)h/2 for h.
Accepted inputs: Area: 0.001 to 100,000,000 m²; Parallel base a: 0.001 to 1,000 m; Parallel base b: 0.001 to 1,000 m.
How the calculation works
height = 2 area/(a+b)
Worked example
With area 12 m², parallel base a 2 m, parallel base b 2 m, trapezoid altitude from area and parallel bases is 6 m.
Assumptions and limits
a,b are parallel base lengths; height perpendicular. Flat Euclidean geometry; enter stated meter measurements. No material thickness, waste, structural recommendation or curved earth. Display rounding does not change calculation. Derivation: Solve A=(a+b)h/2 for h.