Water hardness in Innsbruck
7.8 °dH hard
Tap water in Innsbruck is hard: 7.8 °dH (140 mg/L · 8.2 gpg · 14 °fH).
Source: IKB Innsbruck - Wasserhärte nach Stadtteil (2026) · data checked 2026-10-20
Range across supply zones: 27–378 mg/L.
8 supply zones — hardness varies by neighbourhood; the figure above is the median.
Hardness by district / supply zone
| °dH | mg/L | ||
|---|---|---|---|
| Amras (Stadtteil) | 15.9 | 284 | very hard |
| Arzl (Stadtteil) | 7.9 | 141 | hard |
| Hungerburg (Stadtteil) | 7.8 | 139 | hard |
| Igls - Vill (Stadtteil) | 1.5 | 27 | soft |
| Mentlberg (Stadtteil, range) | 11 | 197 | very hard |
| Oberes Hötting (Stadtteil) | 7.4 | 132 | hard |
| Sieglanger (Stadtteil) | 21.2 | 378 | very hard |
| Stadt Innsbruck gesamt (citywide total) | 6.2 | 111 | moderately hard |
IKB publishes hardness for each part of Innsbruck, and the eight zones give a median of 140.1 mg/L CaCO₃. The spread is unusually wide, from 26.8 to 378.4 mg/L. The page is undated, so confirm the value for your Stadtteil with IKB before buying anything.
Angabe in °dH; Härtebereiche wie in Deutschland üblich.
Water data
| Total hardness | 7.8 °dH |
|---|---|
| Utility | IKB - Innsbrucker Kommunalbetriebe AG |
How Innsbruck compares
- Tap water in Innsbruck is 44 % softer than the median of the 159 cities we track in Austria (14 °dH).
- By hardness it ranks 154 of 159 in Austria (1 = hardest); 3 % of these cities have softer water.
- In Tirol it is number 6 of 7 cities; the regional median is 9 °dH.
- Nearest city with clearly softer water: Lienz, 115 km away (5.3 °dH).
- Nearest city with clearly harder water: Imst, 49 km away (10.2 °dH).
Ranking of the hardest and softest water in Austria →
What it means at home
- Fast scale on taps, shower screens and kettle; white spots on glassware.
- Water heater: efficiency loss and element failures within years if unprotected.
- Dry skin and dull hair after showering are common.
- Softener recommended; jug or reverse osmosis for drinking.
How much salt will you use for softening?
Recommended, especially with a heater or boiler: scale cuts efficiency and shortens its life.
Descale a coffee machine or kettle about every 2 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Innsbruck
| Brand | Setting for this water |
|---|---|
| Bosch | H01 |
| Miele | 8 °dH |
| AEG / Electrolux | 2 |
| Beko | 3rd |
| Hoover | S1 |
| LG | H2 |
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 Innsbruck water hard or soft?
It is hard: 140 mg/L as CaCO₃ (8.2 gpg, 7.8 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Innsbruck safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Angabe in °dH; Härtebereiche wie in Deutschland üblich.
How many grains per gallon is Innsbruck water?
8.2 gpg, equal to 7.8 °dH, 14 °fH or 140 mg/L calcium carbonate.
What dishwasher salt setting should I use in Innsbruck?
For 140 mg/L (7.8 °dH) check your manufacturer's table: level 4–5.
Do I need a water softener in Innsbruck?
Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.
Source
Source: IKB Innsbruck - Wasserhärte nach Stadtteil (2026). Method: figure published by the water supplier. IKB Innsbruck - Wasserhärte nach Stadtteil · Outdated figure? Tell us