How it works
Pick a solid and enter dimensions in one length unit. Results include lateral/base parts when useful, plus area-unit conversions.
4πr² · 6a² · 2πr(r+h) · 2(lw+lh+wh) · πr(r+ℓ) · cap · frustum · ellipsoid · pyramid
When to use
Use this tool when you need to: try cube a=4 in (96 in²), frustum 0.3/1/1.5 ft (~10.19 ft²), or pyramid a=3 h=5 (~40.32 ft²). Lateral + base shown when relevant.
How to use this tool
- Enter your values in the fields above.
- Review the formula and any mode options for your problem.
- Read the result and the step-by-step solution.
Try cube a=4 in (96 in²), frustum 0.3/1/1.5 ft (~10.19 ft²), or pyramid a=3 h=5 (~40.32 ft²). Lateral + base shown when relevant.
Frequently asked questions
- What is the Surface Area Calculator?
- Pick a solid and enter dimensions in one length unit. Results include lateral/base parts when useful, plus area-unit conversions.
- How do I use the Surface Area Calculator?
- Enter the required values, then calculate. The Surface Area Calculator shows results, formulas, and step-by-step work when available. No account is required.
- What formula does the Surface Area Calculator use?
- 4πr² · 6a² · 2πr(r+h) · 2(lw+lh+wh) · πr(r+ℓ) · cap · frustum · ellipsoid · pyramid
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