# How to Measure Square Footage

Two Methods:Find the Square Footage of a SpaceLearn a Few Tricks for Finding Square Footage

Knowing how to measure square footage can be very useful for real estate rental and sale purposes, and it can also help you ace your next geometry test. To measure the square footage of a space, you just have to find the square footages of all the different parts of the space and then add them all together. If you want to know how to measure square footage, just follow these steps.

## Steps

### Method 1 Find the Square Footage of a Space

- 1
**Break down the area into manageable parts.**If you're having trouble finding the square footage, then it's probably because you're not working with a neat area with just one length and one width. The space might have squares jutting off in different places and could be shaped erratically. All you have to do is split up the space into even squares or rectangles. To find the square footage, or the area, of the entire space, you'll need to find the square footage of the individual spaces and then add them all together.- Draw faint lines separating the different sections.
- Label them A, B, and C for your convenience.

- 2
**Measure the length and width of the first space.**Using a ruler or measuring tape, find the length and width of the first space you've created, Space A.- The length of the space is 12 feet (3.7 m), and the width is 15 feet (4.6 m).

- 3
**Multiply the length of the first space by the width of the first space.**To find the square footage -- or the area -- of the space, just multiply the length times the width, just as you would do with any rectangle.- Ex: 12 feet (3.7 m). x 15 feet (4.6 m). = 180 square feet

- 4
**Measure the length and width of the second space.**Let's say that the length of Space B is 20 feet (6.1 m) and the width of Space B is 10 feet (3.0 m). - 5
**Multiply the length of the second space times the width of the second space.**This will lead you to find the square footage of the second space. Here's how you find the square footage of Space B:- Ex: 20 feet (6.1 m). x 10 feet (3.0 m). = 200 square feet.

- 6
**Measure the length and width of the third space.**Let's say that the length of Space C is 20 feet (6.1 m) and the width of Space C is 35 feet (10.7 m). - 7
**Multiply the length of the third space times the width of the third space.**This will lead you to find the square footage of the third space. Here's how you find the square footage of Space C:- Ex: 20 feet (6.1 m). x 35 feet (10.7 m). = 700 square feet

- 8
**Add the square footages of the three spaces.**Once you find the sum of the square footages of the three spaces, you'll know the square footage of the entire space. Here's how you do it:- Square footage of Space A + square footage of Space B + square footage of Space C = square footage of the entire space
- 180 + 200 + 700 = 1080 square feet

### Method 2 Learn a Few Tricks for Finding Square Footage

- 1
**Find the approximation of square footage.**If you're looking for an approximation of square footage, you can also try measuring the outside of your home and then subtracting any areas that won't be factored in to the square footage, such as the porch stairs or garage. - 2
**Find the square footage of a space that's shaped like a half-circle.**If there's a part of your house that's shaped like a half of a circle, you can find the square footage of the circle by finding the area of the space as if it were a full circle and then dividing it by half. To do this, simply measure the long line that cuts the "circle" in half to get the diameter.- Then, divide it by 2 to get the radius, and then plug that into the equation A = πr^2 where r is the radius, and divide by 2 to get the area, or square footage, of the half circle.

- 3
**Find the square footage of a space that's**If you're measuring a space that is almost fully a square or a rectangle, with only a small square or rectangular part missing, then measure the square footage of the entire space as if the missing part was filled in. Then, find the square footage of the missing part and subtract it from the overall square footage to find the square footage of the space. This will save you time.*almost*regularly shaped.

## Tips

- If you have an odd shaped space, break it down into smaller regular shapes, measure separately, and add the results together.

## Article Info

Categories: Build Design & Remodel Own Home