METHODCalculation, assumptions and sources
Formula used
A(circle)=πr²; V(cylinder)=πr²h; V(sphere)=4πr³/3
What is included
Calculate area, perimeter, volume and surface area for circles, rectangles, cylinders, spheres and boxes.
Assumptions and limits
Inputs are treated as finite real numbers; rounding and model choices are shown with the result.
Reference sources
NIST Engineering Statistics Handbook
Last reviewed: September 2026 GUIDEArea & Volume Calculator
Calculate area, perimeter, volume and surface area for circles, rectangles, cylinders, spheres and boxes.
Enter the required values or content, adjust the options and then review the detailed result.
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Calculate area, perimeter, volume and surface area for circles, rectangles, cylinders, spheres and boxes.
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Enter the required values or content, adjust the options and then review the detailed result.
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