Waterhardness in Deutschland

The average water hardness in Deutschland is 16 °dH. This value is based on 5228 values submitted by our users.

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45889 Gelsenkirchen Bismarck (Nordrhein-Westfalen)

Waterhardness: 12 °dH

"Titrierlösung"

Feb 11, 2026 from RB

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45889 Gelsenkirchen Bismarck (Nordrhein-Westfalen)

Waterhardness: 218 ppm
(12.208 °dH)

"TDS-Messgerät"

Feb 11, 2026 from RB

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56204 Hillscheid, Westerwald Hillscheid, Westerwald (Rheinland-Pfalz)

Waterhardness: 3.2 °dH

"Laut aktueller Trinkwasseranalyse, und das Wasser von Hillscheid kommt aus Höhr-Grenzhausen"

Jan 28, 2026 from dasbison

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56203 Höhr-Grenzhausen Höhr-Grenzhausen (Rheinland-Pfalz)

Waterhardness: 3.2 °dH

"Laut aktueller Trinkwasseranalyse"

Jan 28, 2026 from dasbison

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56206 Hilgert bei Höhr-Grenzhausen Hilgert bei Höhr-Grenzhausen (Rheinland-Pfalz)

Waterhardness: 5 °dH

"Laut aktueller Trinkwasseranalyse"

Jan 28, 2026 from dasbison

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93186 Pettendorf, Oberpfalz Günzenried (Bayern)

Waterhardness: 24 °dH

"Der Wert wird bei unserer kürzlich installierten Enthärtungsanlage (Grünbeck) als Eingangswert angezeigt."

Jan 21, 2026 from schrissi@web.de

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24306 Plön / Holstein Plön / Holstein (Schleswig-Holstein)

Waterhardness: 16.85 °dH

"Härtegrad als Mittel laut Angabe des Wasserwerks."

Jan 14, 2026 from Gerd Falke

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24306 Plön / Holstein Plön / Holstein (Schleswig-Holstein)

Waterhardness: 20 °dH

"Eigene erste Messung"

Jan 14, 2026 from Gerd Falke

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93173 Wenzenbach Irlbach (Bayern)

Waterhardness: 17 °dH

"Wert wurde durch einen wasserhärte test mithilfe von Titrationslösung ermittelt. Dabei brauchte es für den Farbumschlag 17 Tropfen der Lösung."

Jan 13, 2026 from WasserFreak123

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The water hardness in Germany varies depending on the region. In some areas the water is soft while in other areas it is hard. The water hardness is measured in degrees of German hardness (dH) and indicates how many millimoles of calcium carbonate are contained in each liter of water. A water hardness of 0-7 dH is considered soft water, while a water hardness of over 14 dH is considered hard water. In Germany, the regions in the south and east of the country are particularly affected by hard water. In these regions, the water can have a water hardness of over 20 dH. This is due to the high proportion of limestone in the rocks in these regions. In regions in the west and north of the country, the water hardness is usually lower and is usually below 14 dH. A high level of water hardness can lead to limescale deposits in water pipes, water heaters and household appliances. These deposits can affect the efficiency of devices and shorten their lifespan. Hard water can also increase the use of detergents and cleaning products. To avoid these problems, experts recommend using a water softener.