Free Pool Calculators

Professional-grade pool maintenance calculators to help you keep your pool crystal clear. Get exact measurements for chemicals, maintenance schedules, and more.

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Pool Volume Calculator

Calculate your pool volume in gallons and liters for accurate chemical dosing. Supports rectangular, oval, circular, and freeform pools with imperial and metric units.

Settings

Free Chlorine (FC)
GOAL RANGE: 3 to 7
Learn more about Free Chlorine »
pH
GOAL RANGE: 7.2 to 7.8
Learn more about pH »
Total Alkalinity (TA)
GOAL RANGE: 80 to 120
Learn more about Total Alkalinity »
Calcium Hardness (CH)
GOAL RANGE: 200 to 400
Learn more about Calcium Hardness »
Cyanuric Acid (CYA)
GOAL RANGE: 30 to 80
Learn more about Cyanuric Acid »
Borate
GOAL RANGE: 30 to 50
Learn more about Borate »
Salt (SWG Only)
GOAL RANGE: 2700 to 3400
Learn more about Salt »
Suggested Free Chlorine (SUG)
Min: 4
Target: 8
SWG: 2
Shock: 16
Mustard: 29
Learn more about Suggested Free Chlorine »
Calcite Saturation Index (CSI)
Tested: -0.02
Goal: -0.02
CONCLUSION:
Balanced
Learn more about Calcite Saturation Index »

How It Works

Simple steps to get accurate pool volume calculations

1

Select Shape

Choose your pool shape from rectangle, oval, circle, or freeform

2

Enter Dimensions

Input your pool's length, width, and depth measurements

3

Get Results

Instantly see your pool volume in gallons and liters

4

Use for Chemicals

Apply results to our chemical calculator for precise dosing

Why Pool Volume Matters

Accurate Chemical Dosing

Knowing your exact pool volume ensures you add the right amount of chemicals every time, preventing over or under-dosing.

Cost Savings

Proper chemical dosing based on accurate volume prevents waste and extends the life of your pool equipment.

Equipment Sizing

Pool volume helps determine the right size pump, filter, and heater for optimal performance and efficiency.

Quick Reference Guide

Small Pool (15,000 gal)2-3 lbs shock
Medium Pool (25,000 gal)3-4 lbs shock
Large Pool (35,000 gal)4-5 lbs shock

* Approximate shock amounts for weekly treatment. Use our chemical calculator for exact dosing.

Need Professional Pool Maintenance?

Our calculators are great for DIY maintenance, but if you want hassle-free pool care, our professional team is here to help.