📐 Geometry Calculator

Calculate area, perimeter, volume, and surface area of common geometric shapes.

How to Use the Geometry Calculator

This versatile geometry tool helps you compute essential properties of common two-dimensional shapes. Whether you are solving homework problems, working on design projects, or calculating materials for construction, this calculator provides quick and accurate results.

Step-by-Step Instructions

  1. Choose Your Shape: Select the geometric shape you want to calculate from the dropdown menu. Options include rectangle, triangle, circle, and trapezoid.
  2. Enter Dimensions: Input the required measurements for your selected shape. The calculator will show the appropriate fields based on your choice.
  3. Calculate: Click the "Calculate Properties" button to compute the area and perimeter (or circumference for circles).
  4. View Results: The calculated values appear instantly, showing both the area and perimeter with appropriate units.

Shape-Specific Guidance

Rectangle: Enter the length and width. The calculator computes area (length × width) and perimeter (2 × (length + width)).

Triangle: Provide the base, height, and two side lengths. Area is calculated as (1/2 × base × height), and perimeter is the sum of all three sides.

Circle: Enter the radius. The calculator finds area (π × radius²) and circumference (2 × π × radius).

Trapezoid: Input both parallel bases, height, and one non-parallel side. Area equals ((base1 + base2) / 2) × height, and perimeter sums all sides.