To convert 64 linear feet to square feet, you must determine the object's width and then multiply by 64. To calculate linear feet, the object must be flat.
- Confirm that the item is flat
Make sure the object you're measuring is flat and rectangular.
- Determine the width of the item in feet
The width may not be given for items measured in linear feet. If this is the case, you need to measure the width in feet using a ruler or tape measure. If you are only able to measure the width in inches, take the number of inches, and divide it by 12 to get the number of feet.
- Multiply the length and width
Since you know that the length is 64 linear feet, multiply the width in feet by 64. The result is the square footage of the item.