How to Calculate Square Footage

Mahalo math expert Allison Moffett shows you how to calculate square footage.

Step 1: The Square Footage of a Square or Rectangle
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1. Carefully measure one full side of the room or area with a tape measure, to the nearest inch

2. Convert feet to
inches by multiplying the number of feet times 12, and then adding any leftover inches to that figure
3. Write down the length that you measured

4. Now measure the side perpendicular to the one you just measured

5. Convert to inches

6. Write this down

7. Multiply the number of inches of both sides together

8. Divide this number by 144 to find the square footage
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Step 2: The Square Footage of A Triangle
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1. Measure the distance between two corners of the triangle

2. Convert to inches by multiplying the feet times 12, and then adding on the leftover inches

3. Write down your measurement

4. From the opposite corner, measure down in a straight line so that you meet the wall that you just measured at a right angle

5. Convert to inches

6. Write down that measurement

7. Multiply both of your numbers together

8. Divide the total by two--this will give you the area in square inches

9. Divide this number by 144 to get the square footage of your triangle

Step 3: How to Get the Square Footage of a Circle
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1. Measure the entire width of your circle

2. Convert to inches by multiplying feet by 12, and then adding the leftover inches to this number

3. Divide this number by 2 to get the
radius
4. Square the radius (multiply it times itself)

5. Multiply this number by 3.14 (
pi)
6. Divide this by 144 to find the square footage

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[seandreezy]

I'm more intrigued on how she writes backwards on a glass so we can see it

[seanjackson]

Thanks, I was overthinking this whole thing

[Nobody-wdci]

For something that was recorded 11 years ago this video is mad clear

[carmenmontoya]

this is so easy!!! why contractors make it so difficult to understand them and they take forever to calculate the square footage. thank you so much 🤩

[tagoh]

Thank you! Math was always a problem for me. This was simple and to the point! I wish i had you as a teacher in school. Seemed like they made it more complicated than it w was. Will look for more vids.

[Solo]

Just the video I was looking for!
Thanks &
If your reading this in 2021, have a great day!

[victorianivens]

I never knew that calculating square footage was that easy! Thank you thank you thank you for that video

[garypatton]

Wow this is literally the 1st and best video I've seen for this

[Ary_]

I'm pretty sure it has to do with mirror reflection type of thing...so in my opinion, no she is not writing this backwards.

[charly-pgkc]

You should show how to do that with inches involved with the feet.

[t.o]

First you’re AWESOME, I’m trying to figure out how much sod I need in Square feet thank you for making it so simple.🇨🇦

[estebanramirez]

thank you so simple and concise, not confusing and dragging on.

[frenchiegirlintheusa]

😮😮😮😮😮😮😮😮😮😮😮😮😮WTH I'm not a big fan of math, but you made this the easiest math. I truly wished you were my teacher 😁

[laundryeater]

@Krazemoekrazy That's right, 1 square foot 1ft. x 1ft. is a 12in. x 12in. square so 12x12 is 144sq.in

[jorgep]

You dam kids don't know how easy you got it !! we use to have to walk through the snow to get to the library to open a book and figure this S/?T out !! jk.. thanks for the video !!

[johnunderwood]

Thanks. Nice and to the point.. good job

[larchmontsbeast]

straight forward and informative. thank you very much

[luisf]

Thank you for taking the time to make this video. Great job we appreciated :)

[FCSchaefer]

Thanks for the video; I'm shopping for a Homeowner's policy and these things are important to know.

[goneleh]

wow!!! that was so easy. I was thinking about this for so long. Thanks a million!!