How to Calculate Square Footage Let's be honest - sometimes the best square footage calculator is the one that is easy to use and doesn't require us to even know what the square footage formula is in the first place! For instance, 14 feet radius times 14 feet radius times 3. Click the "Customize" button above to learn more! The formula is as follows: Not what you're looking for? The size of a pool filter is determined by its surface area, as measured in square feet.
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But if you want to know the exact formula for calculating square footage then please check out the "Formula" box above. Customize Calculations - unlimited. Step 2 Measure a round pool across to find the radius, which is half the diameter. Measure the dimensions of your pool. For oval pools, measure the long diameter and the short diameter.
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Select additional packages to add to your calculator. Measure the dimensions of your pool. Remove calculation limits and start customizing your calculator! For circular pools, multiply the diameter times the diameter times the average depth times 5. Find the square footage of an oval pool by measuring the width and length at the center. If your pool is heavily used, you will want a shorter time, perhaps eight or nine hours.
Measure the length and width of both sections and add the square footages using step 1. If one section is byfeet and the other is byfeet the result will be plus square feet equals square feet. Find the square footage of an oval pool by measuring the width and length at the center. Divide the two measurement by two to find the radii. Multiply the long radius by the wide radius by pi 3. For instance, if the measurements are 30 feet long by 16 feet wide, the calculation would be 15 feet length times 8 feet width times 3.
Step 1 Measure the length of the rectangular or square pool. Step 2 Measure a round pool across to find the radius, which is half the diameter. Step 3 Calculate the square footage of a L-shaped pool by dividing the pool into two rectangular or square sections.
Step 4 Find the square footage of an oval pool by measuring the width and length at the center. The different filter types have varying rates per square foot of surface area. Measure the dimensions of your pool. For all pools, measure the average depth. For circular pools, measure the diameter. For oval pools, measure the long diameter and the short diameter. For rectangular pools, measure the length and width. Calculate the volume of your pool.
For circular pools, multiply the diameter times the diameter times the average depth times 5. For oval pools, multiply the long diameter times the short diameter times the average depth times 5.
For rectangular pools, multiply the length times the width times the average depth time 7. Determine how often your pool turns over. Turnover time is how long it takes all of your pool's water to go through the filter. Most pools take about 10 hours, or minutes.