Drammen vs Oslo
Water hardness comparison — how the two cities differ and what it means for your home.
HarderFull Drammen data →
Drammen
norway
74mg/L
Moderately Hard Water
5.18°e
Medium
Base Unit (CaCO3): 74 mg/LLocal Unit
Oslo
norway
63mg/L
Moderately Hard Water
4.41°e
Medium
Base Unit (CaCO3): 63 mg/LLocal Unit
Side-by-Side Impact
| Impact Area | Drammen | Oslo |
|---|---|---|
| Limescale buildup | Minimal | Minimal |
| Boiler/heating risk | Low risk | Low risk |
| Dishwasher salt setting | Low setting (1–2) | Low setting (1–2) |
| Skin & hair impact | Low risk | Low risk |
| Detergent usage | Standard dose | Standard dose |
Key Findings
Hardness Difference: 11 mg/L
The difference between Drammen and Oslo is relatively small. Both cities fall into the same hardness category and would use similar appliance settings and treatment products.