Water hardness in Sinsheim
19.8 °dH very hard
Tap water in Sinsheim is very hard: 19.8 °dH (354 mg/L · 20.7 gpg · 35.4 °fH).
Source: Stadt Sinsheim – Wasserqualität / Analysenbefund (2024) · data checked 2026-10-23
Range across supply zones: 166–370 mg/L.
4 supply zones — hardness varies by neighbourhood; the figure above is the median.
Hardness by district / supply zone
| °dH | mg/L | ||
|---|---|---|---|
| Dühren, Hilsbach, Waldangelloch, Weiler | 9.3 | 166 | hard |
| Eschelbach | 19 | 339 | very hard |
| Hoffenheim | 20.7 | 370 | very hard |
| Sinsheim, Adersbach, Ehrstädt, Hasselbach, Rohrbach, Reihen, Steinsfurt | 20.7 | 370 | very hard |
Stadtwerke Sinsheim publishes an analysis report from 2024 with four supply groups. The core town and several districts, including Steinsfurt and Rohrbach, are at 369.5 mg/L CaCO₃, Eschelbach at 339.2 mg/L and Dühren, Hilsbach, Waldangelloch and Weiler at 166.0 mg/L. The median across zones is 354.3 mg/L. The report is not recent, so ask the utility for current values.
German law (WRMG) uses 3 bands: soft < 8.4 °dH, medium 8.4–14 °dH, hard > 14 °dH.
Water data
| Total hardness | 19.8 °dH |
|---|---|
| mmol_l | 3.39 |
| Utility | Stadtwerke Sinsheim |
How Sinsheim compares
- Tap water in Sinsheim is 73 % harder than the median of the 809 cities we track in Germany (11.5 °dH).
- By hardness it ranks 73 of 809 in Germany (1 = hardest); 91 % of these cities have softer water.
- In Baden-Württemberg it is number 15 of 146 cities; the regional median is 12.8 °dH.
- Nearest city with clearly softer water: Dielheim, 10 km away (14.7 °dH).
- Nearest city with clearly harder water: Nußloch, 14 km away (31.6 °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 Sinsheim
| Brand | Setting for this water |
|---|---|
| Bosch | H05 |
| Miele | 20 °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 Sinsheim water hard or soft?
It is very hard: 354 mg/L as CaCO₃ (20.7 gpg, 19.8 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Sinsheim 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 Sinsheim water?
20.7 gpg, equal to 19.8 °dH, 35.4 °fH or 354 mg/L calcium carbonate.
What dishwasher salt setting should I use in Sinsheim?
For 354 mg/L (19.8 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Sinsheim?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: Stadt Sinsheim – Wasserqualität / Analysenbefund (2024). Method: figure published by the water supplier. Stadt Sinsheim – Wasserqualität / Analysenbefund · Outdated figure? Tell us