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About this tool
Turn drips per minute into litres and rupees lost per day, month and year — including the geyser units a hot tap leak burns.
A dripping tap water loss calculator converts a drip count into litres using the USGS figure of 15,140 drips per US gallon — 0.25 mL per drip — so every drip per minute works out to 0.36 litres a day. Enter the drips you counted in one minute, or the seconds a faster leak takes to fill a one-litre bottle, and it reports the loss per day, month and year in litres, in rupees at your water rate, and in geyser units if the leak is on the hot line.
Open Dripping Tap Water Loss Calculator on AltFTool — it loads instantly in your browser.
Enter the values you already know.
Fine-tune the options to match your scenario.
Read the result and use it in your planning or reporting.
Count drips for a minute, or time a one-litre fill when the leak is faster.
Adds the geyser energy already spent on water going down the drain.
Converts the annual loss into 15-litre buckets so the number means something.
About 0.36 litres a day for every drip per minute, using the USGS figure of 0.25 mL per drip. A steady 30-drips-a-minute leak therefore loses roughly 10.8 litres a day, 324 litres a month and about 3,942 litres a year — more than three-quarters of a standard 5,000 litre tanker.
Put a cup under the tap, start a one-minute timer and count each drip. If the drips run together into a thin stream, switch to the timed method instead: measure how many seconds it takes to fill a one-litre bottle, since flow in litres per minute is simply 60 divided by that number of seconds.
Yes, usually several times more, because the water has already been paid for twice — once as water and once as electricity. Heating 3,942 litres by 20 °C takes about 92 kWh of useful heat, roughly 102 kWh at the meter for a geyser at 90% efficiency, which typically dwarfs the value of the water itself.
A drip from the spout is nearly always a worn rubber washer in a pillar tap or a failed ceramic cartridge in a quarter-turn tap, both inexpensive parts. Shut the supply, open the tap to drain it and replace the part; a leak from the base or handle instead points to an O-ring or a loose gland nut and is worth a plumber's look.
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