Pool pH Calculator - Check & Balance pH Online

Here is a free online above ground and inground swimming pool pH calculator to calculate instant and accurate results.

Pool pH Calculator

Pool Shape:

Length (ft):

Total length of the pool

Width (ft):

Total width of the pool

Diameter (ft):

Total diameter of the pool

Longest Length (ft):

The longest length of the oval pool

Widest Width (ft):

The widest width of the oval pool

Longest Length (ft):

The longest length of the kidney pool

Widest Width (ft):

The widest width of the kidney pool

Length A (ft):

Width A (ft):

Length B (ft):

Width B (ft):

Longest Length (ft):

The longest length of the irregular pool

Widest Width (ft):

The widest width of the irregular pool

Average Depth (ft):

The average depth of the entire pool

Current pH:

Your current pH reading (ideal range is 7.4-7.6)

Target pH:

The desired pH level

Total Alkalinity (ppm):

Total Alkalinity reading (ideal range is 80-120 ppm)

Add approximately:

oz. of Muriatic Acid (31.45%)

lbs. of Dry Acid (Sodium Bisulfate)

How to Use the Pool pH Adjustment Calculator

Step 1: Enter Pool Volume

Type in the total amount of water in your pool, measured in gallons. You calculate your pool’s volume using this free pool volume calculator.

Step 2: Add Current pH Level

Input your pool’s current pH reading.

Step 3: Choose Target pH Level

Select the pH level you want to achieve from the options.

Step 4: Enter Total Alkalinity

Type in your pool’s total alkalinity value.

Step 5: Add Water Temperature

Enter the current water temperature in your pool.

Step 6: Select pH Adjustment Method

From the dropdown, pick your preferred adjustment method.

Step 7: Choose Chemical Type

Select the chemical you plan to use for adjusting pH.

Step 8: Enter Chemical Cost

Type in the price of one container of your chosen chemical.

Step 9: Enter Container Size

Input the size of the container (in ounces or pounds).

Step 10: Calculate

Finally, click the “Calculate pH Adjustment” button to see how much chemical you need and the estimated cost.