Perimeter Calculator

a:

b:

c:

d:

h:

r:

How This Is Calculated

Rectangle: $$ P = 2(a + b) $$
Rectangle Perimeter

Square: $$ P = 4a $$
Square Perimeter

Triangle: $$ P = a + b + c $$
Triangle Perimeter

Parallelogram: $$ P = 2 (a + b) $$
Parallelogram Perimeter

Rhombus: $$ P = 4a $$
Rhombus Perimeter

Trapezium: $$ P = a + b + c + d $$
Trapezium Perimeter

Circle: $$ P = 2 \pi r $$
Circle Perimeter

Related Calculators