Geometry Foundational

Quadrilateral Area Calculator

Select a quadrilateral type and enter its dimensions to find the area and perimeter. Covers all six major quadrilaterals with the correct formula for each.

6 quadrilateral types

Area & perimeter

Labeled diagram

Inputs

Quadrilateral Type

Side s

Length l

Width w

Method

Diagonal d₁

Diagonal d₂

Side b

Height h

Base b

Height h

Side a (slant)

Base₁ b₁

Base₂ b₂

Height h

Leg s (optional)

Diagonal d₁

Diagonal d₂

Side a (top pair)

Side b (bottom pair)

Result

Select a shape and enter dimensions.

Step-by-Step Solution

Diagram

Put It Into Practice

The calculator shows the steps — a quiz proves you can do them on your own.

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