Calculate area, perimeter, and volume for shapes including circle, square, triangle, rectangle, sphere, cylinder, cone, and cube.
Convert area between square meters, square feet, acres, hectares, and square kilometers.
Calculators (study time, test score, tip, triangle, volume converter, words per page, working capital, pythagorean theorem, scientific calculator), size converters (ring size, screen size, shoe size), and ZIP file extractor. (WebP to JPG/PNG and PDF page operations have their own dedicated pages.)
Calculate total price including sales tax. Enter the pre-tax amount and tax rate to see the exact tax amount and final total.
Calculate the area and perimeter of a rectangle from length and width. Simple geometry for construction, design, and planning.
Calculate circle area and circumference from radius. Quick geometry calculations for circles of any size.
Geometry Calculator lets you calculate area, perimeter, and volume for shapes including circle, square, triangle, rectangle, sphere, cylinder, cone, and cube.. Everything runs inside your browser — nothing is uploaded to a server. It works on any device with a modern web browser.
Calculate area, perimeter, and volume for shapes including circle, square, triangle, rectangle, sphere, cylinder, cone, and cube. It's ideal for developers, designers, and anyone who needs to calculate area, perimeter, and volume for shapes including circle, square, triangle, rectangle, sphere, cylinder, cone, and cube without installing software or sending data to external servers.
Direct text entry, file upload, or URL-based input — depending on the tool. All numeric values are entered through input fields with real-time updates.
Yes. After the initial page load, Geometry Calculator runs entirely on your device with no internet connection needed. All processing is done locally.
Yes, this tool is completely free. No credit card or registration is required for standard usage.
All processing happens 100% locally in your browser. Your data is never uploaded to any server.
Yes. Once the page has loaded, the tool runs entirely offline without requiring an internet connection.
Standard tools are unlimited. Pro tools allow free daily usage with an option to upgrade.
Any modern web browser (Chrome, Firefox, Safari, Edge) on desktop or mobile. No installation needed.
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