Water hardness in Károlyháza
14.8 °dH very hard
Tap water in Károlyháza is very hard: 14.8 °dH (264 mg/L · 15.4 gpg · 26.4 °fH).
Source: NNGYK — Magyarországi települések ivóvízminősége (HUMVI 2024) (2024) · data checked 2026-10-21
Károlyháza, in Győr-Moson-Sopron county, is reported at 264.1 mg/L CaCO₃ in the 2024 NNGYK drinking-water register. That is in the very hard category. The register does not say which waterworks serves the village, so check with the local provider if you need the supply details.
Hungarian suppliers report total hardness in German degrees (nk°) or mg/L CaO; the limit is 50–350 mg/L CaO.
Water data
| Total hardness | 14.8 °dH |
|---|
How Károlyháza compares
- Tap water in Károlyháza is 8 % softer than the median of the 3053 cities we track in Hungary (16.1 °dH).
- By hardness it ranks 1736 of 3053 in Hungary (1 = hardest); 42 % of these cities have softer water.
- In Győr-Moson-Sopron it is number 95 of 180 cities; the regional median is 15.3 °dH.
- Nearest city with clearly softer water: Tárnokréti, 10 km away (11 °dH).
- Nearest city with clearly harder water: Lébény, 8 km away (20.2 °dH).
Ranking of the hardest and softest water in Hungary →
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 Károlyháza
| Brand | Setting for this water |
|---|---|
| Bosch | H04 |
| Miele | 15 °dH |
| AEG / Electrolux | 4 |
| 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 Károlyháza water hard or soft?
It is very hard: 264 mg/L as CaCO₃ (15.4 gpg, 14.8 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Károlyháza safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Hungarian suppliers report total hardness in German degrees (nk°) or mg/L CaO; the limit is 50–350 mg/L CaO.
How many grains per gallon is Károlyháza water?
15.4 gpg, equal to 14.8 °dH, 26.4 °fH or 264 mg/L calcium carbonate.
What dishwasher salt setting should I use in Károlyháza?
For 264 mg/L (14.8 °dH) check your manufacturer's table: maximum level (5–7).
Do I need a water softener in Károlyháza?
Yes, unless you are only passing through: scale damages appliances within a few years.
Source
Source: NNGYK — Magyarországi települések ivóvízminősége (HUMVI 2024) (2024). Method: figure published by the water supplier. NNGYK — Magyarországi települések ivóvízminősége (HUMVI 2024) · Outdated figure? Tell us