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Looking for help with calculations for your swimming pool or hot tub chemistry? The Pool Calculator does all the math for you, making testing and treating your pool or hot tub a breeze.

Pool Calculator tells you exactly how much of each chemical to add to keep your water in balance and crystal clear. No more puzzling over complicated charts and formulas.

Bring your Android phone or tablet out to the pool and have all the chemical information and calculations you need right at your fingertips.

Pool Calculator provides a complete tool kit to make pool care easy. You get:
• Chemical Calculators
• Volume Calculator
• Effects (What-if) Calculator


CHEMICAL CALCULATORS
You can use whichever test strip or test kit you prefer for testing your pool or hot tub. Pool Calculator provides calculations for:
- Chlorine (FCl)
- Raising pH
- Lowering pH
- Total alkalinity (TA)
- Calcium hardness (CH)
- Stabilizer (CYA or cyanuric acid)
- Salt
- Borate (Borax)
- Calcium saturation index (CSI, similar to LSI)

RECOMMENDED CHEMICAL RANGES
With Pool Calculator, the recommended ranges for your chemicals are based upon whether you have a pool or hot tub, and the surface material (plaster, vinyl or fiberglass) of your pool or hot tub. You can choose from several pre-defined ranges or customize based on your preferences.

POOL VOLUME CALCULATOR
To keep your swimming pool or hot tub at its best, it’s important that you accurately calculate your water volume. All of the chemical balancing recommendations you receive from the Pool Calculator are based on it. You can calculate the volume of your pool in metric units (liters) or in imperial units (gallons). The Pool Volume Calculator can be used for:
• Rectangular Pools and Hot Tubs
• Oval Pools and Hot Tubs
• Round Pools Hot Tubs

CHEMICAL EFFECTS CALCULATOR
“What if” analysis for adding chemicals to your pool or hot tub! Ever want to know the impact of adding a given amount of Chemical has on your swimming pool or hot tub chemistry?

The Effects Calculator calculates the impact adding a specific amount of chemical has on your pool chemistry. It does this not only for the primary purpose of the chemical, but also on the other important measurements for your pool. For example, adding Trichlor not only raises your Free Chlorine, it also increases your Cyanuric Acid, lowers your pH and increases your Salt. Adding Cal Hypo raises Free Chlorine, and also raises Calcium Hardness (CH) and Salt.

With the Effects Calculator you can measure the effects on pool chemistry of adding a given dose of:
• Bleach
• Trichlor
• Dichlor
• Cal-hypo
• Lithium Hypochlorite
• Chlorine gas
• Muriatic Acid
• Dry Acid
• Washing soda
• Soda Ash
• Borax
• Sodium Tetraborate Pentahydrate
• Boric Acid
• Caustic Acid (lye)
• Baking Soda
• Calcium Chloride
• Calcium Chloride dihydrate
• Stabilizer
• Liquid Stabilizer
• Salt

Google Play Store Category:

Primary: Applications

Secondary: House & Home

Google Play

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Total Ratings

130
5
73
4
30
3
7
2
5
1
14

Screenshots

THE POOL CALCULATOR - Chemistry, Volume, & Effects screenshot 1THE POOL CALCULATOR - Chemistry, Volume, & Effects screenshot 2THE POOL CALCULATOR - Chemistry, Volume, & Effects screenshot 3THE POOL CALCULATOR - Chemistry, Volume, & Effects screenshot 4THE POOL CALCULATOR - Chemistry, Volume, & Effects screenshot 5THE POOL CALCULATOR - Chemistry, Volume, & Effects screenshot 6THE POOL CALCULATOR - Chemistry, Volume, & Effects screenshot 7THE POOL CALCULATOR - Chemistry, Volume, & Effects screenshot 8THE POOL CALCULATOR - Chemistry, Volume, & Effects screenshot 9THE POOL CALCULATOR - Chemistry, Volume, & Effects screenshot 10

Version History

Launched Jun 28, 2014 (over 6 years ago).

Releasing new versions every 7 months, on average.

Jul 21
2019
(Current)
Version 4.1.1

Pool Calculator v4 introduces the next major version of Pool Calculator's mobile app that incorporates feature parity with Pool Calculator's web app. This version features the ability to log in and save data, including: pool settings, test values, chemical additions, and much more!

Jun 14
2019
Version 3.1.1

A new build of the Pool Calculator that incorporates more native features, including working back buttons and item selection.

Oct 25
2018
Version 3.0.0

MAJOR UPDATES! Removal of login requirement as well as ability to save tests and logs to simplify the app experience. Data is now stored locally to save user inputs and allow app to be used outside of cell and wifi service.

Jul 16
2018
Version 2.4.6

Added minor UI updates and ability to rate and review app.

Jun 12
2018
Version 2.4.4

Added complete conversion capabilities between units (e.g. US to Metric to Imperial) as well as weights and volumes. Added minor UI improvements to test save and reports workflows.

PLEASE NOTE: You may need to uninstall and reinstall the app for changes to take effect.

Jun 12
2018
Version 2.4.3

Added complete conversion capabilities between units (e.g. US to Metric to Imperial) as well as weights and volumes.

PLEASE NOTE: You may need to uninstall and reinstall the app for changes to take effect.

Jun 08
2018
Version 2.4.2

Minor bug fixes to settings.

PLEASE NOTE: You may need to uninstall and reinstall the app for changes to take effect.

Jun 06
2018
Version 2.3.5

Complete rewrite of the app to incorporate modern user interface, storage of tests and chemical logs, as well as user pool settings and custom tests and ranges.

PLEASE NOTE: You may need to agree to Google Play Store's web terms and conditions to update to this new version.

Nov 28
2014
Version 1.0.4

* Added 8.25% Bleach

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