Calculate the perimeter of various geometric shapes including circle, triangle, rectangle, square, and regular polygons. Perfect for students, teachers, and professionals.
Calculate the circumference of a circle using radius, diameter, or area. Uses p = 3.14159 for calculations.
Calculate perimeter of triangle using three sides, or base/height for right triangle.
Calculate perimeter of rectangle or square. For square, enter same value for length and width.
Calculate perimeter of regular polygon (equal sides) using number of sides and side length.
Calculate perimeter of parallelogram, rhombus, or trapezoid.
Calculate perimeter of composite shapes made of multiple basic shapes (L-shape, U-shape, etc.)