# Calculate the surface area of a pyramid

Here you can calculate the surface area of a pyramid with a four-sided base.

#### What is broken?

Is there something wrong with the calculation **Calculate the surface area of a pyramid**? Is it a bug or has it gone completely offline? Please, let us know what is wrong! If the calculation did not give you the result you expected, please write which values you used and what you expected the calculation to do.

## Other calculations in geometry (area, volume etc)

## Some random calculations

### Ten most popular

- Calculate when you are sober again after drinking alcohol
- Calculate how many days there are between two given dates.
- Calculate your average speed
- Calculate percent in different ways
- Calculate how many days there are left until a certain date
- Calculate the volume of a cylinder
- Calculate the volume of a cube or brick
- Calculate the area of a square or rectangle
- Find out which date was/is X days before or after a date
- Calculate the area of a circle