Geometry Calculator
Calculate area, perimeter, circumference, diagonal, and other measurements for common two-dimensional shapes with clear formulas and instant results.
Choose a circle, rectangle, square, triangle, right triangle, or trapezoid.
Add the required side lengths, radius, base, or height.
See area, perimeter, and shape-specific geometry results.
Perimeter = 2(length + width)
Multiply the rectangle's length by its width to find area. Add length and width, then multiply by two to find perimeter.
A rectangle has four right angles and opposite sides of equal length.
Geometry calculations are useful for floor plans, landscaping, construction, schoolwork, product design, crafts, engineering estimates, and determining how much material is needed for a surface or boundary.
Use the same unit for every dimension. Area results are shown in square units, while perimeter and circumference are shown in linear units.
What is the difference between area and perimeter?
Area measures the space inside a shape, while perimeter measures the total distance around its outer edge.
Which units should I use?
You may use any consistent unit such as inches, feet, centimeters, or meters. Do not mix units unless you convert them first.
Can this calculator handle triangles?
Yes. It supports general triangles using base, height, and three sides, as well as right triangles using two perpendicular legs.
Results are estimates generated locally in your browser using standard mathematical formulas. They are for informational and educational purposes only and are not a substitute for verification in coursework, examinations or professional contexts requiring certified accuracy. VisionVix accepts no liability for decisions based on this tool's output.
This calculator is intended for educational, planning, and estimation purposes. Confirm critical construction or engineering measurements with qualified professionals and verified plans.
