Trapezoid Perimeter Calculator

Your details

Choose how you know your trapezoid. Isosceles: both non-parallel sides are equal. Right: one leg is perpendicular to both bases. Angle: derive the oblique leg from an angle.
The longer of the two parallel sides.
cm
The shorter of the two parallel sides.
cm
One of the non-parallel sides.
cm
The other non-parallel side.
cm
Perimeter
30

Sum of all four sides of the trapezoid

Leg c5
Leg d6
Median9.5
Leg c5
Leg d6

Perimeter of this general trapezoid is 30.0000 cm.

  • The two parallel bases are 12 cm and 7 cm, and the two legs are 5.00 cm and 6.00 cm.

Next stepTo find the area of any trapezoid, you also need the height (perpendicular distance between bases). Use the trapezoid area calculator for a full breakdown including diagonals.

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