Pool Calculator - Volume

A Swimming Pool Chemical Calculator

Adjust sliders to calculate pool gallons.

PLEASE FILL IN ALL FIELDS!

Pool Volume Calculator

Knowing the pool volume is extremely important in calculating the amount of chemicals needed to add to the water when adjusting the pool chlorine, pH, stabilizer, alkalinity, salt or any other chemical levels. Read more below on using the pool calculator to help balance and maintain safe clean pool water.

The pool gallon calculation will automatically be saved and entered in the other calculators.

READ: How To Calculate The Volume Of A Swimming Pool: From Simple To Complex Shapes

RESULTS SHOWN HERE

Pool Calculator

After calculating the pool volume, use the other pool calculators to help balance the other pool chemicals. Get answers to questions like “how much liquid chlorine to add to pool?” or “how much muriatic acid to add to pool?” The Turnover Time, Flow Rate, and Filter Size calculators can help select adequate equipment and troubleshoot pool water circulation problems. This pool calculator is a Progressive Web App and can be saved to any mobile device home screen and accessed just any other app.

READ: Opening Your Swimming Pool for the Season: A Comprehensive Guide

Pool Testing - Pool Test Kit

Pool water should be tested at least 2 - 3 times a week depending on previous water condition and swimmer load. Testing the pool water is super easy and can be done with a pool test kit using chemical reagents or test strips. There are some digital chemistry meters available that make testing the water quick and easy. For the most accurate readings, pool water samples should be collected from at least elbow deep. Once the current pool chemical values are known, use the Pool Chemical Calculator app to take the guesswork out of factoring how much of each chemical to add.

Pool Chemicals

There are many options for maintaining clean pool water for swimmers. One common factor among all sanitizing systems whether it be chlorine, a salt water pool, hydrogen peroxide, ozone, baquacil, ultraviolet or some other system, they all must be monitored, tested, and balanced. Understanding the pool chemicals being used for sanitation and their impact on things like pH is necessary to providing a safe and pleasant pool environment. Learn more about each pool chemical on the different calculator pages.

READ: Free Chlorine vs. Combined Chlorine: A Guide for New Pool Owners

Pool Math

Don't be the one standing around in the heat of the summer looking at a cloudy pool. Taking the time to understand the pool math behind balancing the pool water is essential for anyone tasked with caring for a swimming pool. Beat the heat and save Pool Chemical Calculator to any mobile home screen and always be ready.

Calculating Pool Gallons

The formula for calculating pool volume requires knowing two factors. The surface area and the average depth in feet. For “L” shaped pools or complex shapes, divide the pool into smaller simple shapes and do the calculation for each one, and add the totals back together.

READ: Clearing the Green: A Homeowner’s Guide to a Sparkling Swimming Pool

Calculate The Pools Surface Area

Finding the surface area of the pool requires determining the shape of the section being calculated:

Square/Rectangle: Area = Length x Width
Circle: Area = Radius x Radius x 3.14

Those two formulas can be used to calculate the surface area of most pool sections.

Calculate The Average Depth

Finding the average pool depth requires knowing how deep and how shallow the pool section being calculated is:

Average Depth = (Deep End Depth + Shallow End Depth ) / 2

READ: Frogs in the Pool: Causes, Solutions, and Tips for Homeowners

Gallons In a Cubic Foot

There are 7.48 gallons of water in a cubic foot. Multiplying the surface area and average depth gives the total number of cubic feet in the pool. Multiplying the total number of cubic feet by 7.48 the number of gallons in a cubic foot, gives the total number of gallons in the pool.

(Average Depth * Area) * 7.48 = Pool Gallons

Other Sanitizing Options

Alternate systems like ozone, UV and oxidizing chemical combos can work in some unique scenarios but almost always have problems maintaining appropriate sanitation levels in addition to being very expensive. Chlorine is the number one sanitizer used in pools for a reason; it's inexpensive, readily available, easy to use and most important of all its very effective at keeping the water safe for swimmers.