Geometry Area & Volume Calculator
Quickly solve geometric measurements for engineering, home improvement, and education.
Shape:
Area78.54
Circumference31.42
Diameter10.00
How it works
Step 01
Select Shape
Choose Circle, Rectangle, Triangle, Sphere, or Cylinder.
Step 02
Input Dimensions
Enter radius, length, width, or height.
Step 03
Read Results
View computed area, perimeter, or volume.
Frequently Asked Questions
Calculations use standard high-precision Math.PI (3.141592653589793).