AquaScaleEurope

Denver vs Madrid

Water hardness comparison — how the two cities differ and what it means for your home.

Denver

united states

118mg/L

Moderately Hard Water

8.26°e
Medium
Base Unit (CaCO3): 118 mg/LLocal Unit
Full Denver data →
Harder

Madrid

spain

133mg/L

Hard Water

9.31°e
Hard
Base Unit (CaCO3): 133 mg/LLocal Unit
Full Madrid data →

Side-by-Side Impact

Impact AreaDenverMadrid
Limescale buildupMinimalModerate — monthly descaling
Boiler/heating riskLow riskMonitor annually
Dishwasher salt settingLow setting (1–2)High salt setting (3–5)
Skin & hair impactLow riskLow risk
Detergent usageStandard dose+15–25% more

Key Findings

Hardness Difference: 15 mg/L

The difference between Denver and Madrid is relatively small. Both cities fall into the same hardness category and would use similar appliance settings and treatment products.

Compare With Other Cities