The water in Frankfurt
- Hardness
- 104–352 ppm
- Band
- Soft – Hard
- Source
- Mainova / Hessenwasser
Tap water in Frankfurt measures 104–352 ppm (5.8–19.7 °dH), which ranges anywhere from soft to hard, according to figures published by Mainova / Hessenwasser.
Built for this water
Parthenope
The reference blend, built for the middle of the spread. In Naples that is the high ground — the Vomero, Posillipo, Chiaiano, the Sanità — where the water sits near 21 French degrees. Dense, dark, long on the tongue. If your water lands in the middle, start here and do not move.
See the blend →Your neighbourhood matters more than your city
The water in Frankfurt runs from 104 ppm to 352 ppm — a spread of 248 ppm that crosses Soft → Medium → Hard. That is not imprecision: a city this size is served by several waterworks, and the average describes no tap in particular. Check which works supplies your street before you trust a city figure, ours included.
The same number, three ways
- °dH
- 5.8–19.7 °dH
- °f
- 10.4–35.2 °f
- ppm CaCO₃
- 104–352 ppm
German utilities publish °dH, French and Italian ones °f, British and Irish ones ppm CaCO₃. Same water, three conventions — worth knowing if you compare your city with one abroad.
Of the 47 cities we publish, Frankfurt ranks 20th by hardness.
The other cities we publish in Germany
Cities with the closest water to this one
Closest match abroad
The water most like Frankfurt's, outside Germany, is Barcelona.
Barcelona — 71–362 ppm →Where this number comes from
Published by Mainova / Hessenwasser. We do not estimate: a city without a figure we could read on the utility's own publication is not on this site at all.
Mainova / Hessenwasser →