Pool Calculators
Pool and pond care depends on volume. Estimate water volume, chemicals, pump and filter size, and the cost of covers, decks and heaters.
Pool Calculator
Plan pool size, water volume and equipment in one place.
Pool Volume Calculator
Find the water volume of your pool in gallons or litres.
Pool Chemical Calculator
Work out how much chemical your pool water needs.
Pool Heater Calculator
Find the heater size your pool needs.
Pool Pump Calculator
Pick the pump size that suits your pool.
Pond Pump Calculator
Pick the pump size that suits your pond.
Pool Deck Calculator
Plan the deck area around your pool.
Pool Filter Calculator
Pick the filter size for your pool volume.
Fountain Pump Calculator
Size a pump for your fountain.
Pond Aerator Calculator
Find the aeration your pond needs.
Pond Filter Calculator
Pick the filter size for your pond.
Pool Cover Calculator
Size a cover for your pool.
Waterfall Pump Calculator
Size a pump for your waterfall flow.
Pool Area Calculator
Measure the surface area of your pool.
Pool Pump Cost Calculator
Estimate the cost of a pool pump.
Pond Depth Calculator
Plan pond depth for plants, fish and water volume.
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How to Use Our Pool Calculators
Follow four simple steps to turn your pool measurements into a clear material list.
Pick a calculator
Choose the pool calculator that fits your job, such as the Pool Volume or Pool Pump calculator.
Enter your measurements
Add length, width and height, plus any material details the calculator asks for.
Check the result
Read the amount you need, with a waste allowance and the formula shown.
Plan your purchase
Use the figures to compare suppliers and order the right amount of chemicals and equipment.
Why Use Our Pool Calculators
Simple tools that save you time, and help you avoid over-buying or running short.
Built for pool projects
Every calculator in this category is made for pool jobs, so the inputs match what you measure on site.
Clear, checkable math
Each result shows the formula behind it, so you can verify the numbers before you buy.
Free, with no signup
Use every pool calculator as often as you like, without creating an account.
Pool Calculator FAQs
Quick answers to common questions about our pool calculators.
Are the pool calculators free?
Yes. Every pool calculator is free to use, and you do not need an account.
How accurate are the pool calculator results?
Results follow standard formulas and use the measurements you enter. Treat them as planning figures, and confirm structural details with local codes or a professional.
How much extra material should I order for a pool?
Most projects need 5 to 10 percent more than the exact figure to cover cuts, breakage and uneven ground.
Which pool calculator should I start with?
Start with the main Pool calculator for an overview, then open the specific tools for volume, pumps, filters and chemicals as you plan each stage.
Browse More Categories
Explore calculators for the rest of your backyard projects.