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Pyramid Calculator
Compute the volume, lateral area and surface area of a regular pyramid with any base.
Pyramid calculator
Base area: —
Volume: —
Slant height: —
Lateral area: —
Total surface area: —
Lateral edge: —
How to use the Pyramid Calculator
- Pick the number of sides in the pyramid base.
- Enter the base edge length and the vertical height.
- Read the volume, slant height and surface areas.
Features
- Works with triangular to octagonal bases
- Volume from base area and height
- Slant height, lateral area and edge length
- Runs locally with no uploads
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Frequently Asked Questions
Common questions about the free online pyramid calculator.
Enter the base edge and the height. The tool multiplies the base area by the height and then
divides the result by three.
Volume is one third of the base area multiplied by the height, so V = base area x height / 3
for any pyramid.
The slant height is the square root of the height squared plus the apothem of the base
polygon squared.
No. Choose three, four, five, six or eight sides and the tool builds the matching regular
polygon base for you.
Lateral area covers only the triangular faces. Add the base polygon area to the lateral area
to get the total surface area.
No. The pyramid calculations run locally in your browser, so your values never leave your
device at any point.
Yes. The calculator is fully responsive and works on desktop, tablet and phone screens of any
size.
Yes. The pyramid calculator is completely free, unlimited and requires no account, sign-up or
installation.
Last updated: October 10, 2026