Plan the perfect garden with our interactive tool →

How to Measure a Swimming Pool

...
Jupiterimages/Comstock/Getty Images

Measuring a swimming pool is necessary for two reasons. The first is to calculate the water volume in the pool. You will use this number frequently when adding chemicals to the pool water as many of the chemicals depend on the amount of water in the pool. The second reason for measuring a pool is to determine the square feet necessary for replacing a pool liner. When taking these measurements, you will most likely need a friend to help you with the tape measure.

Pool Volume

Measure the pool’s length and width. Take the measurements by holding the tape measure at the two points farthest from each other on the length and width of the pool.

  • Measuring a swimming pool is necessary for two reasons.
  • The second reason for measuring a pool is to determine the square feet necessary for replacing a pool liner.

Calculate the average depth for the pool. For example, add the shallow end figure (3 feet) with the deep end figure (9 feet). Divide by two, which will result in an average depth of six feet.

Multiply the length times width times average depth. For rectangle, square or custom-form pools, multiply the figure by 7.5 to compute total water volume in gallons; multiply round or oval pools by 5.9 to compute total water volume in gallons.

Measure An Above-ground Swimming Pool

An above-ground pool is an excellent option for those who would like the availability of a pool at home without the high price tag of a more permanent in-ground pool. Above-ground pools are widely available in three different shapes: circular, oval and rectangular. Carefully measure the length, width and height of your pool easily and without error. Measure the height of your above-ground pool's walls. Take the tape measure and place the end firmly at the bottom of the wall. Measure the width by placing the end of the tape measure on the top and in the middle of one of the pool's long walls and drawing it across the top to the end of the opposite wall. The tape measure should cross the direct center of the pool.

  • Calculate the average depth for the pool.
  • Measure the width by placing the end of the tape measure on the top and in the middle of one of the pool's long walls and drawing it across the top to the end of the opposite wall.

Tip

For odd shaped pools, you can contact a pool supplier for tips on measuring your pool. Pool suppliers may also offer free measuring to help you determine the size of your pool.

Related Articles

How Much Water Is in a 15-foot by 4-foot Pool?
How Much Water Is in a 15-foot by 4-foot Pool?
How to Calculate Pool Area
How to Calculate Pool Area
How Long Should I Wait to Swim After I Put Chemicals in the Pool?
How Long Should I Wait to Swim After I Put Chemicals...
How Much Room Is Needed for an Above Ground Pool?
How Much Room Is Needed for an Above Ground Pool?
How to Calculate a Stone Retaining Wall
How to Calculate a Stone Retaining Wall
How to Make a Stone Waterfall
How to Make a Stone Waterfall
How to Dig a Hole for a Pool
How to Dig a Hole for a Pool
How to Build a Chain Link Gate
How to Build a Chain Link Gate
How to Vacuum a Doughboy Pool
How to Vacuum a Doughboy Pool
How to Clear Up an Above Ground Pool That Is Cloudy
How to Clear Up an Above Ground Pool That Is Cloudy
How to Measure a Patio Umbrella
How to Measure a Patio Umbrella
Are Ficus Trees Poisonous to Children?
Are Ficus Trees Poisonous to Children?
How to Build Planters With Landscape Timbers
How to Build Planters With Landscape Timbers
Are Chinese Palm Plants Poisonous to Cats?
Are Chinese Palm Plants Poisonous to Cats?
How to Assemble Kayak Pools
How to Assemble Kayak Pools
Garden Guides
×