Trapezoid Calculator
Calculate trapezoid area and perimeter.
Enter values above.
How to Use the Trapezoid Calculator
Enter both parallel bases, the two side lengths and the perpendicular height. The calculator returns trapezoid area and perimeter.
Practical Example
With bases 10 and 6, height 4, and side lengths 5 and 5, the area is 32 square units and the perimeter is 26 units.
Factors That Affect the Result
Area depends on the two parallel bases and perpendicular height. Perimeter depends on all four side lengths, so inaccurate side measurements affect only the perimeter result.
Frequently Asked Questions
Do the bases need to be parallel?
Yes. The trapezoid area formula assumes the two bases are parallel.
Is height the same as a slanted side?
No. Height is the perpendicular distance between the bases.
What units are used?
Any consistent linear unit works; area is returned in squared units.