# Pool Volume Calc (poolvolumecalc.com) — full guide > Exact pool volume for any shape — gallons, litres, or m³. Pool volume calculator network handling rectangle, round, oval, triangle, kidney, freeform, Roman, Grecian, L-shaped, above-ground and hot-tub pools with flat, sloped, and hopper (deep-end) floors. Outputs US gallons, imperial gallons, litres, and cubic metres. Also pump turnover, pump/filter sizing, heater BTU, water-fill cost, evaporation/leak testing, cover savings, cost of ownership, excavation, liner area, solar cover, and bather load. Every calculator runs entirely client-side (no signup, nothing stored on a server). Figures are estimates for planning; safety-critical numbers (chemical doses, structural loads) are deliberately not produced — the tools point to a test kit or a professional instead. ## Pool volume calculators (by shape) - [Rectangle Pool Volume Calculator — Gallons & Litres](https://poolvolumecalc.com/rectangle-pool-volume/): Calculate the exact volume of a rectangular pool in gallons or litres, including sloped and deep-end floors. Free, no signup. - [Round Pool Volume Calculator — Gallons & Litres](https://poolvolumecalc.com/round-pool-volume/): Calculate the volume of a circular or round above-ground pool in gallons or litres. Free instant calculator. - [Oval Pool Volume Calculator — Gallons & Litres](https://poolvolumecalc.com/oval-pool-volume/): Calculate the volume of an oval pool in gallons or litres using the correct ellipse formula. Free calculator. - [Kidney Pool Volume Calculator — Gallons & Litres](https://poolvolumecalc.com/kidney-pool-volume/): Calculate the volume of a kidney-shaped pool using the industry-standard two-width formula. Free, instant, in gallons or litres. - [Freeform & Irregular Pool Volume Calculator](https://poolvolumecalc.com/freeform-pool-volume/): Calculate the volume of a freeform, lagoon, or irregular pool by combining simple sections. Free section-by-section calculator with a live total. - [Triangular Pool Volume Calculator — Gallons & Litres](https://poolvolumecalc.com/triangle-pool-volume/): Calculate the volume of a triangular pool in gallons or litres. Free instant calculator with sloped-floor support. - [Roman Pool Volume Calculator — Gallons & Litres](https://poolvolumecalc.com/roman-pool-volume/): Calculate the volume of a Roman pool (rectangle with curved semicircular ends) in gallons or litres. Free. - [Grecian Pool Volume Calculator — Gallons & Litres](https://poolvolumecalc.com/grecian-pool-volume/): Calculate the volume of a Grecian pool (rectangle with cut corners) in gallons or litres. Free instant calculator. - [L-Shaped Pool Volume Calculator — Gallons & Litres](https://poolvolumecalc.com/l-shaped-pool-volume/): Calculate the volume of an L-shaped pool by combining its two rectangular sections. Free calculator with live total. - [Above-Ground Pool Volume Calculator + Size Chart](https://poolvolumecalc.com/above-ground-pool-volume/): Calculate above-ground pool volume in gallons, or use our size chart for standard round and oval kits. Free. - [Hot Tub & Spa Volume Calculator — Gallons](https://poolvolumecalc.com/hot-tub-volume/): Calculate hot tub or spa water volume in gallons, accounting for seats and the actual fill line. Free calculator. ## Pool tools - [Pool Turnover & Pump Runtime Calculator](https://poolvolumecalc.com/turnover-calculator/): Work out pump runtime and turnover time from your pool volume and flow rate. Free, instant. - [Pool Heater BTU & Heat-Up Time Calculator](https://poolvolumecalc.com/pool-heater-btu/): Estimate heater BTU, heat-up time, and gas cost from your pool volume and target temperature rise. - [Pool Water Fill Cost Calculator](https://poolvolumecalc.com/water-fill-cost/): Estimate the cost and time to fill your pool from your volume and local water rate, including sewer charges. - [Pool Evaporation vs Leak Test Calculator (Bucket Test)](https://poolvolumecalc.com/evaporation-leak-test/): Tell normal evaporation from a real leak using the bucket-test method, and estimate gallons lost per day. - [Pool Cover Savings Calculator — Water & Heating](https://poolvolumecalc.com/pool-cover-savings/): Estimate the water and heating money a pool cover saves each year, and how fast it pays for itself. Free calculator. - [Variable-Speed Pool Pump Calculator — Schedule & Savings](https://poolvolumecalc.com/variable-speed-pump-calculator/): Build an energy-optimized variable-speed pump schedule and see how much you save versus a single-speed pump each month. Free calculator. - [Pool Liner Calculator — Vinyl Surface Area & Material](https://poolvolumecalc.com/pool-liner-calculator/): Estimate vinyl liner surface area and material square footage for an inground pool — floor, walls, and the sloped-floor area most calculators miss. Free. - [Pool Water Delivery Calculator — Hose vs Water Truck Cost](https://poolvolumecalc.com/pool-water-delivery-calculator/): Compare filling your pool from a garden hose against water-truck delivery: fill time, number of trucks, and total cost side by side. Free. - [Pool Bather Load Calculator — Maximum Occupancy Estimate](https://poolvolumecalc.com/pool-bather-load-calculator/): Estimate a pool's maximum bather load from surface area using common area-per-bather standards for shallow, deep, and spa zones. Your local health code governs. - [Pool Pump Sizing Calculator — Total Dynamic Head (TDH)](https://poolvolumecalc.com/pool-pump-sizing-calculator/): Size a pool pump the right way: estimate Total Dynamic Head from your plumbing, then get the GPM-at-head target and an honest HP range. Free, no signup. - [Pool Excavation Calculator — Dirt Volume & Dump Truck Loads](https://poolvolumecalc.com/pool-excavation-calculator/): Estimate the dirt an inground pool dig produces: over-dig volume, soil swell, loose cubic yards and dump-truck loads to haul it away. Free. - [Pool Filter Size Calculator — Sand, Cartridge & D.E.](https://poolvolumecalc.com/pool-filter-size-calculator/): Size a pool filter by flow rate, not volume. See the square footage needed for sand, cartridge and D.E. filters, plus a pump-compatibility check. Free. - [Solar Pool Cover & Ring Calculator — How Many Rings You Need](https://poolvolumecalc.com/solar-pool-cover-calculator/): Work out how many circular solar rings you need to cover your pool, or the solid solar blanket size. Accounts for circle-packing gaps, not just area. Free. - [Pool ROI Calculator — True Cost of Owning a Pool](https://poolvolumecalc.com/pool-roi-calculator/): See the real cost of owning a pool: build cost plus a multi-year operating breakdown — energy, water, heating, maintenance, insurance and tax. Free. ## Guides & reference - [Green Pool Rescue — How to Clear an Algae Bloom (SLAM Guide)](https://poolvolumecalc.com/green-pool-rescue/): Fix a green pool the right way: know your exact volume, follow the SLAM method step by step, and use a test kit — not a one-shot dose — to clear algae. - [Privacy Policy — Pool Volume Calc](https://poolvolumecalc.com/privacy/): How Pool Volume Calc handles data: Google Analytics, Google AdSense, Adsterra ads, affiliate links and cookies. No account required. - [How Pool Volume Calc Works — Methods & Accuracy](https://poolvolumecalc.com/how-it-works/): How our pool calculators work: the geometry behind each shape, why floor profile matters, and where we deliberately stop short of false precision. - [Pool Calculator Formulas — Every Equation We Use](https://poolvolumecalc.com/formulas/): Every formula behind the calculators — volume by shape, interior surface area, depth profiles, pump sizing and TDH, heater BTU, filter sizing, excavation, solar cover and cost of ownership. Downloadable PDF. - [Pool Glossary — Every Pool Term, Defined](https://poolvolumecalc.com/glossary/): Plain-English definitions of 100+ pool terms — shapes, hydraulics, filtration, heating, chemistry and construction, each linked to the relevant calculator. - [Pool Calculation Guides — Pool Volume Calc](https://poolvolumecalc.com/guides/): Step-by-step pool guides: measuring volume by shape, fixing a green pool, sizing equipment, and getting accurate estimates. ## Guides - [The Beginner's Guide to Pool Maintenance](https://poolvolumecalc.com/pool-maintenance-guide/) - [How to Clear Cloudy Pool Water](https://poolvolumecalc.com/clear-cloudy-pool-water/) - [How to Properly Shock a Swimming Pool](https://poolvolumecalc.com/how-to-shock-a-pool/) - [How to Clean & Backwash Pool Filters (Sand, Cartridge, DE)](https://poolvolumecalc.com/clean-backwash-pool-filter/) - [Master Pool Chemistry: pH, Alkalinity & Chlorine](https://poolvolumecalc.com/pool-water-chemistry-guide/) - [Converting to a Saltwater Pool: Cost, Install & Maintenance](https://poolvolumecalc.com/saltwater-pool-conversion-guide/) - [How to Kill Green Algae in a Pool Fast](https://poolvolumecalc.com/how-to-kill-pool-algae/) - [Variable-Speed Pool Pump Sizing & Energy Savings](https://poolvolumecalc.com/variable-speed-pump-guide/) - [How to Choose & Size a Pool Heater (Gas vs Heat Pump vs Solar)](https://poolvolumecalc.com/pool-heater-buying-guide/) - [How to Find and Fix a Pool Leak (The Bucket Test)](https://poolvolumecalc.com/pool-leak-detection-guide/) - [In-Ground vs Above-Ground Pools: Cost, Size & Comparison](https://poolvolumecalc.com/inground-vs-above-ground-pools/) - [Complete Hot Tub & Spa Care Guide for Beginners](https://poolvolumecalc.com/hot-tub-spa-care-guide/) - [How to Measure Pool Surface Area and Volume for Any Shape](https://poolvolumecalc.com/measure-pool-volume-any-shape/) - [How to Open a Pool in the Spring (Complete Checklist)](https://poolvolumecalc.com/how-to-open-a-pool/) - [How to Winterize an In-Ground or Above-Ground Pool](https://poolvolumecalc.com/how-to-winterize-a-pool/) - [Contact Us — Pool Volume Calc](https://poolvolumecalc.com/contact/): Get in touch with Pool Volume Calc by email. Questions, corrections, or feedback on any of our calculators are welcome. ## FAQ - [Pool Calculator FAQ](https://poolvolumecalc.com/faq/): 625 answers across every calculator, grouped into 5 categories. - [Shape volume calculators FAQ](https://poolvolumecalc.com/faq/shape-volume/): Gallons and litres for every pool shape — rectangle, round, oval, and the tricky freeform and deep-end floors. 275 answers. - [Pump & energy FAQ](https://poolvolumecalc.com/faq/pump-energy/): Turnover, pump sizing and TDH, filters, variable-speed savings, and heater BTU math. 125 answers. - [Water & cost FAQ](https://poolvolumecalc.com/faq/water-cost/): Fill cost, truck vs hose delivery, evaporation and leak testing, cover savings, and cost of ownership. 125 answers. - [Build & install FAQ](https://poolvolumecalc.com/faq/build-install/): Excavation and dirt removal, vinyl liner surface area, and solar cover sizing. 75 answers. - [Operation & safety FAQ](https://poolvolumecalc.com/faq/operation-safety/): Bather load and safe occupancy for residential and public pools. 25 answers. ## Network - [Free tools network](https://poolvolumecalc.com/free-tools/): a network of free browser-based calculators and utilities from the same team.