Water hardness in Göppingen
14.3 °dH very hard
Tap water in Göppingen is very hard: 14.3 °dH (254 mg/L · 14.9 gpg · 25.4 °fH).
Source: EVF Trinkwasseranalyse 2026 (Stand 04/2026) (2026) · data checked 2026-10-23
Range across supply zones: 239–270 mg/L.
2 supply zones — hardness varies by neighbourhood; the figure above is the median.
Hardness by district / supply zone
| °dH | mg/L | ||
|---|---|---|---|
| Eigenwasser WW Göppingen | 15.1 | 270 | very hard |
| Zweckverband Landeswasser (Fernwasser) | 13.4 | 239 | very hard |
EVF (Energieversorgung Filstal) lists two sources in its April 2026 analysis. The local waterworks supplies 269.5 mg/L CaCO₃, and long-distance water from Zweckverband Landeswasser supplies 239.2 mg/L. The city figure is 254.4 mg/L, in the very hard category. Nürtingen to the west is considerably softer at 160.7 mg/L.
German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
Water data
| Total hardness | 14.3 °dH |
|---|---|
| Calcium (mg/L) | 66 |
| Magnesium (mg/L) | 23 |
| Utility | Energieversorgung Filstal (EVF) |
How Göppingen compares
- Tap water in Göppingen is 24 % harder than the median of the 809 cities we track in Germany (11.5 °dH).
- By hardness it ranks 290 of 809 in Germany (1 = hardest); 64 % of these cities have softer water.
- In Baden-Württemberg it is number 60 of 146 cities; the regional median is 12.8 °dH.
- Nearest city with clearly softer water: Alfdorf, 13 km away (11.4 °dH).
- Nearest city with clearly harder water: Donzdorf, 10 km away (19 °dH).
Ranking of the hardest and softest water in Germany →
What it means at home
- Severe scale: heater elements and washing-machine heaters fail early.
- Detergent use is very high; taps and screens coat within days.
- Dishwasher at maximum salt setting.
- An ion-exchange softener is practically essential; RO for drinking water.
How much salt will you use for softening?
Yes. At this hardness a softener pays for itself through appliance life and detergent.
Descale a coffee machine or kettle about every 1 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Göppingen
| Brand | Setting for this water |
|---|---|
| Bosch | H04 |
| Miele | 14 °dH |
| AEG / Electrolux | 3 |
| Beko | 4th |
| Hoover | S2 |
| LG | H3 |
From each brand's manual for the model family named in the source; your model may differ, so check its manual. All brands and how to change the setting →
FAQ
Is Göppingen water hard or soft?
It is very hard: 254 mg/L as CaCO₃ (14.9 gpg, 14.3 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Göppingen safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
How many grains per gallon is Göppingen water?
14.9 gpg, equal to 14.3 °dH, 25.4 °fH or 254 mg/L calcium carbonate.
What dishwasher salt setting should I use in Göppingen?
For 254 mg/L (14.3 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Göppingen?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: EVF Trinkwasseranalyse 2026 (Stand 04/2026) (2026). Method: own measurement. EVF Trinkwasseranalyse 2026 (Stand 04/2026) · Outdated figure? Tell us