AquaScaleEurope

Bilbao vs Paris

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

Bilbao

spain

122mg/L

Hard Water

8.54°e
Hard
Base Unit (CaCO3): 122 mg/LLocal Unit
Full Bilbao data →
Harder

Paris

france

234mg/L

Very Hard Water

16.38°e
Very Hard
Base Unit (CaCO3): 234 mg/LLocal Unit
Full Paris data →

Side-by-Side Impact

Impact AreaBilbaoParis
Limescale buildupModerate — monthly descalingRapid — visible within weeks
Boiler/heating riskMonitor annuallyAnnual descaling required
Dishwasher salt settingHigh salt setting (3–5)Max salt setting (5–7)
Skin & hair impactLow riskHigh eczema/dry skin risk
Detergent usage+15–25% more+30–40% more detergent

Key Findings

Hardness Difference: 112 mg/L

Paris is significantly harder than Bilbao — a difference that has major household implications. Appliances, boiler warranties, and detergent costs will differ substantially.

Moving from Bilbao to Paris?

If you're relocating from Bilbao to Paris, expect visible limescale on taps and shower heads within weeks. You'll need to recalibrate your dishwasher's salt setting, increase kettle descaling frequency, and check your boiler warranty requirements. A shower filter and under-sink scale inhibitor are worth considering immediately.

Compare With Other Cities