Tools
Practical calculators and tables, free and with no sign-up.
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Faucet flow rate calculator
Turn a bucket test into a flow rate: enter the volume you collected and the time it took, and get gallons or litres per minute.
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Dripping leak water loss calculator
Catch a drip in a cup for a few minutes, then see how much water a leak wastes per day, per month and per year.
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Pressure unit converter (psi, bar, kPa)
Convert a water pressure reading between psi, bar and kPa: fill in any one field and the other two follow.