Waterhardness in Deutschland

The average water hardness in Deutschland is 16 °dH. This value is based on 4991 values submitted by our users.

Latest Entries

75175 Pforzheim Buckenberg (Baden-Württemberg)

Waterhardness: 14 °dH

"Sehr kalkhaltig"

Mar 1, 2024 from Manuel.ktc


85737 Ismaning Ismaning (Bayern)

Waterhardness: 8.2 °dH

"Die Wasserhärte des Trinkwassers liegt bei 8,2 °dH und damit im Härtebereich „weich“. Das Trinkwasser enthält 30,5 mg/l Calcium, 0,8 mg/l Kalium und 17,1 mg..."

Feb 29, 2024 from Emmi007


49377 Vechta Vechta (Niedersachsen)

Waterhardness: 13.6 °dH


Feb 28, 2024 from Kati96


32549 Bad Oeynhausen Volmerdingsen (Nordrhein-Westfalen)

Waterhardness: 21 °dH

"Gemessen im Wietel"

Feb 22, 2024 from don't panic


72229 Rohrdorf bei Nagold Rohrdorf bei Nagold (Baden-Württemberg)

Waterhardness: 20 °dH

"Härtegrad: 18-20 | Bereich 3 (Stand: 20.02.24, Quelle: Gemeindeverwaltung 72229 Rohrdorf)"

Feb 20, 2024 from Petra Vollmer


32049 Herford Schwarzenmoor (Nordrhein-Westfalen)

Waterhardness: 15 °dH


Feb 10, 2024 from ok


26969 Butjadingen Eckwarden (Niedersachsen)

Waterhardness: 8 °dH


Feb 10, 2024 from ok


63571 Gelnhausen Hailer, Kreis Gelnhausen (Hessen)

Waterhardness: 24 °dH

"Nach Angaben der Stadtwerke Gelnhausen liegt die Wasserhärte zwischen 22 und 26 Grad dH. https://www.stadtwerke-gelnhausen.de/privatkunden/wasser/wasserqual..."

Jan 23, 2024 from Wasserator


91452 Wilhermsdorf Wilhermsdorf (Bayern)

Waterhardness: 22 °dH

"01/2024 elektrisch gemessen per Enthärtungsanlage: 23 °dH + Vergleichend mit Titrationslösung: 22 °dH"

Jan 22, 2024 from *Harry*


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.