Use a calculator when one measured input can improve the next decision. Hydropolis tools are deterministic, work without an account, and keep saved pool details in your browser rather than sending them to our server.
Start with water volume
Pool Volume Calculator
Estimate rectangular, oval, or circular pool volume in US gallons and litres. Use average depth or shallow and deep measurements, then add a known spa volume if needed.
Plan pump operation
Pump Runtime and Energy Cost
Use your pump’s electrical draw, estimated flow, runtime, and electricity price to compare energy-cost and theoretical-turnover scenarios.
Match verified cleaner specs
Robotic Cleaner Finder
Filter current, in-stock complete cleaners by verified pool class, size, coverage, power, app evidence, and practical limitations.
Turn a symptom into the next safe check
Pool Problem Solver
Choose an observable water, circulation, filter, or robotic-cleaner symptom. The solver ranks up to three plausible branches, shows the safest separating test, and makes the stop conditions explicit. It does not diagnose with certainty or calculate a chemical dose.
A small profile, kept on your device
My Pool stores the calculated volume, shape, units, and dimensions in this browser using versioned local storage. Its editor can also keep the pool setup, surface, sanitation system, exact equipment labels, region, and season you enter. There is no login or email gate. You can update or delete it at any time.
Move from estimate to decision
- Rank the next checks, then use the Pool Problems hub for the complete diagnostic.
- Compare equipment types by suitability, limitations, maintenance, and ownership cost.
- Filter accepted robotic-cleaner evidence, or verify an exact model before relying on a product name or photograph.
Pool Pump Energy Cost Calculator
Estimate daily, monthly, seasonal, and annual energy cost, compare pumps or operating schedules, and optionally prefill pool details from My Pool.