Water hardness in Lappeenranta
2.9 °dH soft
Tap water in Lappeenranta is soft: 2.9 °dH (51 mg/L · 3 gpg · 5.1 °fH).
Source: Lappeenrannan Energia, Veden hankinta ja laatu (kovuus per intake area) (2026) · data checked 2026-10-21
Range across supply zones: 13–67 mg/L.
Lappeenrannan Energia lists hardness for nine intake areas. They range from 0.13 mmol/L in Ylämaa to 0.67 in Honkala, and the page uses the median. The page does not say which year the table covers, so the date shown is that of the page itself. Which area you live in matters more here than the city-wide median.
Finnish waterworks report hardness in °dH; most supplies are soft.
Water data
| Total hardness | 2.9 °dH |
|---|---|
| Utility | Lappeenrannan Energia (Lappeenrannan vesi) |
How Lappeenranta compares
- Tap water in Lappeenranta is 18 % softer than the median of the 76 cities we track in Finland (3.5 °dH).
- By hardness it ranks 55 of 76 in Finland (1 = hardest); 28 % of these cities have softer water.
- Nearest city with clearly softer water: Hollola, 145 km away (1.8 °dH).
- Nearest city with clearly harder water: Imatra, 33 km away (4.5 °dH).
Ranking of the hardest and softest water in Finland →
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 Lappeenranta
| 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 Lappeenranta water hard or soft?
It is soft: 51 mg/L as CaCO₃ (3 gpg, 2.9 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Lappeenranta safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. Finnish waterworks report hardness in °dH; most supplies are soft.
How many grains per gallon is Lappeenranta water?
3 gpg, equal to 2.9 °dH, 5.1 °fH or 51 mg/L calcium carbonate.
What dishwasher salt setting should I use in Lappeenranta?
For 51 mg/L (2.9 °dH) check your manufacturer's table: level 0–1, usually no salt.
Do I need a water softener in Lappeenranta?
No. With soft water a softener adds nothing.
Source
Source: Lappeenrannan Energia, Veden hankinta ja laatu (kovuus per intake area) (2026). Method: computed from supplier's calcium and magnesium. Lappeenrannan Energia, Veden hankinta ja laatu (kovuus per intake area) · Outdated figure? Tell us