# Cone Surface Area Calculator

If you forgot how to find the surface area of a cone, you’re in the right place – this online cone surface area calculator is the answer to your problems. Play with the cone calculation tool, read on and refresh your memory to find out what is the surface area of a cone and to learn the formula behind the calculation.

## Cone surface area formula

The surface area of a cone can be obtained with the cone surface area formula below:

`A = πr[r + √(r2 + h2)]`

where `r` is radius and `h` is height.

## Example of how to calculate the surface area of a cone

We now have the formula to calculate the surface area of a cone. Let’s solve an example problem with that.

For a cone with the base radius r = 4 cm and the height h = 8 cm, we can calculate its surface area like so:

• `A = πr[r + √(r2 + h2)]`
• `A = π * 4[4 + √(42 + 82)] = 162.66 cm2`

Now you know how to find the surface area of a cone. If you need a handy calculation tool to find the surface area of a cone, try out our cone surface area calculator.

## How to use the cone surface area calculator?

You can use the cone surface area calculator to find the surface area of a cone:

1. Enter the length of the base radius (r).
2. Enter the length of the height (h).
3. Our cone calculation tool performs all the calculations for you. The surface area is displayed.

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