What is the Pyramid Volume Calculator?
Calculate the volume and surface area of a square pyramid. A square pyramid holds one third of the volume of a box with the same base and height, and this calculator gives surface area too.

How to use the Pyramid Volume Calculator
- Enter your base edge, your height.
- Results update automatically as you type; you can also press Calculate.
- Read the output: volume, slant height, total surface area.
- Use the 📊 chart to see the result visually, then copy or share it.
Formula and method
Worked example
With base edge = 6, height = 8, the Pyramid Volume Calculator returns volume: 96; slant height: 8.54400374532; total surface area: 138.528044944.
Where the Pyramid Volume Calculator helps in real life
A model maker builds a pyramid with a 20 cm base and 30 cm height and needs to know how much resin it will take. The volume gives the answer in cubic centimeters.
A geometry student compares a pyramid and a cube with the same base and height to see the one-third relationship in numbers.
Common mistakes to avoid
- Using the slant height instead of the vertical height for volume.
- Forgetting the one-third factor.
- Using a rectangular base in a square-base formula.
- Measuring the base in centimeters and the height in millimeters.
💡 Practical tip: Volume uses the vertical height, not the slant height along a face.

Tips for better results
- Measure vertical height from the base center to the apex.
- Use slant height only for surface area.
- Compare with a cube of the same base and height to check the one-third ratio.
Frequently asked questions
What does the Pyramid Volume Calculator do?
Calculate the volume and surface area of a square pyramid.
How is it calculated?
The Pyramid Volume Calculator uses this method: V = ⅓ × base area × height.
Can you show an example?
With base edge = 6, height = 8, the Pyramid Volume Calculator returns volume: 96; slant height: 8.54400374532; total surface area: 138.528044944.
Is the Pyramid Volume Calculator accurate?
Yes. It uses standard formulas and exact constants, and the results are verified by our automated test suite. Values are displayed to up to 12 significant digits.
Is this tool free and private?
Yes — the Pyramid Volume Calculator is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.
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