Water hardness in Landsberg am Lech
20.7 °dH very hard
Tap water in Landsberg am Lech is very hard: 20.7 °dH (370 mg/L · 21.6 gpg · 37 °fH).
Source: Stadtwerke Landsberg am Lech Wasseruntersuchung Stadt Landsberg, Stand März 2026 (2026-03) · data checked 2026-10-23
Stadtwerke Landsberg am Lech reports 20.7 °dH, or 369.5 mg/L CaCO₃, in its analysis of March 2026, which is hard. The report lists three identical columns without labels, so we use one value for the whole town. Scale builds up quickly in kettles and showers, and a descaler is part of normal upkeep.
German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
Water data
| Total hardness | 20.7 °dH |
|---|---|
| Utility | Stadtwerke Landsberg am Lech |
How Landsberg am Lech compares
- Tap water in Landsberg am Lech is 80 % harder than the median of the 809 cities we track in Germany (11.5 °dH).
- By hardness it ranks 55 of 809 in Germany (1 = hardest); 93 % of these cities have softer water.
- In Bayern it is number 11 of 137 cities; the regional median is 15.8 °dH.
- Nearest city with clearly softer water: Eichenau, 28 km away (12.8 °dH).
- Nearest city with clearly harder water: Ampfing, 116 km away (26 °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 Landsberg am Lech
| Brand | Setting for this water |
|---|---|
| Bosch | H05 |
| Miele | 21 °dH |
| AEG / Electrolux | 5 |
| Beko | 6th |
| Hoover | S3 |
| 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 Landsberg am Lech water hard or soft?
It is very hard: 370 mg/L as CaCO₃ (21.6 gpg, 20.7 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Landsberg am Lech 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 Landsberg am Lech water?
21.6 gpg, equal to 20.7 °dH, 37 °fH or 370 mg/L calcium carbonate.
What dishwasher salt setting should I use in Landsberg am Lech?
For 370 mg/L (20.7 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Landsberg am Lech?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: Stadtwerke Landsberg am Lech Wasseruntersuchung Stadt Landsberg, Stand März 2026 (2026-03). Method: figure published by the water supplier. Stadtwerke Landsberg am Lech Wasseruntersuchung Stadt Landsberg, Stand März 2026 · Outdated figure? Tell us