Pool Pump Calculator
A pool should turn over its whole volume in about 8 hours. Enter the volume and turnover time to get the required flow rate, a suggested pump size and the running cost.
Your pool & pump
Not sure of the volume? Use the volume calculator. A 0.75–1.0 kW pump suits most home pools.
Monthly cost by run time
Indicative sizing — real flow depends on pipe size, head and filter. A variable-speed pump run longer at low speed is usually cheaper and quieter than a single-speed pump. Aim for at least one full turnover a day.
Related Guides — Deep-dive reading
Swimming Pool Maintenance: The Complete Home Guide
Filtration, sanitising, water chemistry and a simple weekly routine — how to keep a home pool clean, safe and clear, what it costs, and when to call a professional.
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Wall-mounted horizontal body jets turn a shower into a spa massage — but every jet is a thirsty extra outlet. How many jets, at what heights, the big pump and geyser they force, the pipe sizing and concealed valves you must plan before tiling, the water and running cost, and exactly who it is worth it for.
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The vanishing-edge effect explained — the weir wall, catch basin, balance tank and second pump — why infinity pools cost more, where they work, and whether one is right for you.
Swimming PoolsRelated Tools — You may also find these useful
Pool Tile Calculator
Floor, wall and waterline area and the total number of tiles for your pool, with a wastage allowance.
Pool CalculatorPool Volume Calculator
Water volume in litres, US gallons and cubic metres, by pool shape and depth.
Pool CalculatorPool Water Calculator
Chlorine, shock and salt doses plus top-up water for your pool — an indicative balancing guide.
Pool Calculator