Interactive
Tools
Seven tools that take the sums and the guesswork off your hands. Everything runs in your browser, nothing is sent.
How much should you drink?
Water intake calculator
The water intake calculator works out from body weight, age, activity, temperature and diet how much you should drink today, with a daily plan and a result you can share.
OpenCount your glasses
Drink tracker
The drink tracker counts your glasses through the day, shows your progress as a water level, reminds you with a rhythm and saves your streak locally in the browser.
OpenAvoid bottles
Plastic savings calculator
The plastic savings calculator converts your bottled water consumption into bottles, kilograms of plastic, euros and CO2 per year, and shows what tap water or a soda maker would cost instead. The result comes as an image you can share.
OpenSparkling vs. bottled
Soda maker cost calculator
The soda maker cost calculator compares purchase, cylinder price and consumption with bottled water and shows the price per litre and the month from which the soda maker pays off.
OpenSoft or hard?
Hardness converter
The hardness converter translates between German, French and English degrees, mmol/l and ppm, classifies the hardness and gives descaling intervals, detergent dosage and suitability for coffee.
OpenIs it worth it?
Reverse osmosis calculator
The reverse osmosis calculator weighs purchase, filter changes, membrane, wastewater and consumption against your current water costs and shows after how many months the system pays for itself.
OpenIs my water okay?
Tap water check
The tap water check asks about year of construction, pipes, origin, taste and use, and gives a traffic-light assessment with concrete next steps, from letting the water run to a laboratory test.
OpenFor sharing
Water type quiz
Eight questions, six water types, one result with an image to share: find out whether you are a Spring Spirit, Bubble Fan, Purist, Mineral Connoisseur, Eco Hero or Epicure.
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