1/7/2024 0 Comments Pool math calculatorTo do this, add the shallow end depth to the deep end depth, and divide by 2. First, determine the pool’s average depth. If your pool has more than one depth (shallow end, deep end), you’ll need to do a little more math. So if your pool is 32 feet long, 16 feet wide, and 4 feet deep:ģ2 × 16 × 4 × 7.5 = 15,360 gallons Variable Depths with a Gradual Slope Then multiply that figure by 7.5 to calculate the volume of the pool in gallons. Then you’ll multiply that number by the depth to calculate the volume in cubic feet. If your pool has only one depth, you’ll measure the length and width to calculate the surface area of the pool. How you calculate volume will depend on how the bottom of your pool is laid out. It’ll reveal everything you need to know about taking care of any size pool with ease. If any of this is confusing, then you should invest in the pool care video course. Now it’s just a matter of plugging in the numbers. So in order to determine the total number of gallons your pool holds, you’ll first determine the cubic feet measurement of your pool, then multiply that number by 7.5 to find the volume. To ensure those calculations are correct, divide your pool into sections by depth (shallow end, deep end).Īnother key part of your equations is this: One cubic foot of water contains 7.5 gallons. In order to calculate cubic volume, you’ll need to include the pool’s depth as well as the surface area. In order to measure your pool’s volume, you’ll need a handful of basic equation elements.Īnd just in case geometry class was a while ago for you, a few basic formulae to calculate area:Īrea of a Right Triangle: A = (L × W) ÷ 2 It’s not enough to throw the chemistry balance off. It rounds up just a bit, which will make chemical calculations easier. To use your pool’s exact measurements, you can also use our pool calculator. Just be aware that the measurements and amounts may not be exact, depending on your pool’s size, and you’ll always get a better result if you measure your pool yourself. How to Calculate Pool Volumeīefore you do any math or use a pool calculator, you can also just use this quick-reference chart. Even if it’s not just a rectangle or a circle, all you have to do is plug your pool’s measurements into a mathematical formula to get the volume.īut if you’re not into math or, as we like to call it, numerical torture, you can just as easily plug those numbers into a pool calculator and let it do the work for you. The necessary amounts of chlorine, pH increaser, shock, and any other chemical you use to care for your pool have all been figured out based on water volume. That includes adding chemicals to your pool. This means they’ve navigated the pitfalls and figured some things out so you don’t have to. Luckily for you, lots of people have been maintaining pools for decades now. And if you don’t already know that, it’s time to break out the pool calculator. But those instructions only work if you know how much water your pool holds. It’s always a good idea to follow the manufacturer’s instructions when adding chemicals to your pool water. The more water it holds, the more chemicals you’ll need to keep it clean and swimmable. Step 4 – Use our circular volume calculator above to get the approximate water capacity of the hot tub or spa.Before you go pouring a bunch of chemicals into your pool, you need to know how much to use.Step 3 – Record these numbers in the spa section of your notes.Typical spa depth is around 42 inches of water. Step 2 – Measure the depth by using the tape measure at the center of the spa bottom up to the water level.Step 1 – Measure the total diameter of the spa and divide by 2 to get the radius.Step 5 – Use our pool volume calculators above with the numbers you have to get the total water volume capacity of your pool.Įllipse, Oval, and Irregular Circular pool shape measurements:.Step 4 – Record all of these measurements into your notes about the pool.Use your tape measure from the bottom of the pool up to the water surface. Get approximately above the deepest point. Step 2 – Measure the total width of the pool inside wall to inside wall.Step 1 – Measure the total length of the pool from the inside wall to the adjacent inside wall.This can also be used for measuring square & rectangle spas. Note: Areas of the pool that are cut out from the main shape will need to be added in to the measurements. Rectangle & geometric pool shape measurements: Now that we have the tools needed to measure the pool, let’s actually get those measurements, here is how you do it. You might need a second person to help hold your tape measure.A tape measure (that is at least 35ft long).Here are the tools you will need to get all the measurements: Now that you have a means of keeping notes on your pool, let’s begin with “How to measure your pool for water calculations”.
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