AquaScaleEurope

Ljubljana vs London

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

Ljubljana

slovenia

141mg/L

Hard Water

9.87°e
Hard
Base Unit (CaCO3): 141 mg/LLocal Unit
Full Ljubljana data →
Harder

London

united kingdom

277mg/L

Very Hard Water

19.39°e
Very Hard
Base Unit (CaCO3): 277 mg/LLocal Unit
Full London data →

Side-by-Side Impact

Impact AreaLjubljanaLondon
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: 136 mg/L

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

Moving from Ljubljana to London?

If you're relocating from Ljubljana to London, 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