New York vs London
Water hardness comparison — how the two cities differ and what it means for your home.
New York
united states
52mg/L
Soft Water
3.64°e
Soft
Base Unit (CaCO3): 52 mg/LLocal Unit
HarderFull London data →
London
united kingdom
277mg/L
Very Hard Water
19.39°e
Very Hard
Base Unit (CaCO3): 277 mg/LLocal Unit
Side-by-Side Impact
| Impact Area | New York | London |
|---|---|---|
| Limescale buildup | Minimal | Rapid — visible within weeks |
| Boiler/heating risk | Low risk | Annual descaling required |
| Dishwasher salt setting | Low setting (1–2) | Max salt setting (5–7) |
| Skin & hair impact | Low risk | High eczema/dry skin risk |
| Detergent usage | Standard dose | +30–40% more detergent |
Key Findings
Hardness Difference: 225 mg/L
London is significantly harder than New York — a difference that has major household implications. Appliances, boiler warranties, and detergent costs will differ substantially.
Moving from New York to London?
If you're relocating from New York 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
New York vs IstanbulNew York vs MoscowNew York vs ParisNew York vs MadridNew York vs BarcelonaNew York vs AnkaraNew York vs Saint PetersburgNew York vs SydneyLondon vs IstanbulLondon vs MoscowLondon vs ParisLondon vs MadridLondon vs BarcelonaLondon vs AnkaraLondon vs Saint PetersburgLondon vs Sydney