Water hardness in Kristiansund
2.6 °dH soft
Tap water in Kristiansund is soft: 2.6 °dH (46 mg/L · 2.7 gpg · 4.6 °fH).
Source: Kristiansund kommune, Om vann og avløp (municipal web page) (2026-05) · data checked 2026-11-05
Range across supply zones: 41–54 mg/L.
Kristiansund kommune states an annual average of about 2.6 °dH, or 46.4 mg/L CaCO₃, with a table range of 2.3 to 3 °dH. The page carries an edit date from 2026 but no measurement year, so the figure is approximate. This is soft water, and a softener is rarely needed.
Norwegian waterworks report hardness in °dH or mg/L Ca; most supplies are very soft.
Water data
| Total hardness | 2.6 °dH |
|---|---|
| Utility | Kristiansund kommune (vann og avløp) |
How Kristiansund compares
- Tap water in Kristiansund is 30 % harder than the median of the 89 cities we track in Norway (2 °dH).
- By hardness it ranks 29 of 89 in Norway (1 = hardest); 67 % of these cities have softer water.
- In Møre og Romsdal it is number 1 of 7 cities; the regional median is 1.9 °dH.
- Nearest city with clearly softer water: Molde, 50 km away (2 °dH).
- Nearest city with clearly harder water: Midtre Gauldal, 129 km away (4.9 °dH).
Ranking of the hardest and softest water in Norway →
What it means at home
- Little or no limescale in kettles, water heaters or washing machines.
- Soap lathers easily; water does not dry skin or hair.
- Dishwasher: salt setting at minimum or off.
- No softener needed; a jug filter only changes taste.
How much salt will you use for softening?
No. Water this soft does not need softening.
Descale a coffee machine or kettle about every 6 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Kristiansund
| Brand | Setting for this water |
|---|---|
| Bosch | H00 |
| Miele | 3 °dH |
| AEG / Electrolux | 1 |
| Beko | 1st |
| Hoover | S0 |
| LG | H0 |
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 Kristiansund water hard or soft?
It is soft: 46 mg/L as CaCO₃ (2.7 gpg, 2.6 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Kristiansund safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Norwegian waterworks report hardness in °dH or mg/L Ca; most supplies are very soft.
How many grains per gallon is Kristiansund water?
2.7 gpg, equal to 2.6 °dH, 4.6 °fH or 46 mg/L calcium carbonate.
What dishwasher salt setting should I use in Kristiansund?
For 46 mg/L (2.6 °dH) check your manufacturer's table: level 0–1, usually no salt.
Do I need a water softener in Kristiansund?
No. With soft water a softener adds nothing.
Source
Source: Kristiansund kommune, Om vann og avløp (municipal web page) (2026-05). Method: figure published by the water supplier. Kristiansund kommune, Om vann og avløp (municipal web page) · Outdated figure? Tell us