German degrees to ppm CaCO₃
Type a value in °dH to get it in ppm instantly.
2,677.2ppm
That's 8.9× as hard as very hard water — nothing on our list beats it. That is very hard water: descaling becomes a regular chore.
Convert the other way: ppm to °dH
What it means
How hard is that water?
All scales measure the same thing, calcium carbonate content, just with different sized degrees.
The math
How to convert °dH to ppm
To convert German degrees to ppm CaCO₃, multiply by 17.848.
Example: 150 °dH × 17.848 = 2,677.2 ppm.
In the other direction, 1 ppm = 0.0560287 °dH.
Every unit
Your hardness in every unit
Tables
°dH to ppm conversion table
| °dH | ppm |
|---|---|
| 20 °dH | 356.96 ppm |
| 40 °dH | 713.92 ppm |
| 60 °dH | 1,070.88 ppm |
| 80 °dH | 1,427.84 ppm |
| 100 °dH | 1,784.8 ppm |
| 120 °dH | 2,141.76 ppm |
| 150 °dH | 2,677.2 ppm |
| 180 °dH | 3,212.64 ppm |
| 200 °dH | 3,569.6 ppm |
| 250 °dH | 4,462 ppm |
| 300 °dH | 5,354.4 ppm |
| 400 °dH | 7,139.2 ppm |
ppm to °dH conversion table
| ppm | °dH |
|---|---|
| 20 ppm | 1.12057 °dH |
| 40 ppm | 2.24115 °dH |
| 60 ppm | 3.36172 °dH |
| 80 ppm | 4.48229 °dH |
| 100 ppm | 5.60287 °dH |
| 120 ppm | 6.72344 °dH |
| 150 ppm | 8.4043 °dH |
| 180 ppm | 10.0852 °dH |
| 200 ppm | 11.2057 °dH |
| 250 ppm | 14.0072 °dH |
| 300 ppm | 16.8086 °dH |
| 400 ppm | 22.4115 °dH |
Quick answers
Quick answers
- How many ppm is 1 °dH?
- 1 °dH is 17.848 ppm.
- How many ppm is 10 °dH?
- 10 °dH is 178.48 ppm.
- How many ppm is 150 °dH?
- 150 °dH is 2,677.2 ppm.
The units
About these units
German degrees (°dH)
One German degree is 17.85 ppm. Used across Germany, Austria and much of central Europe.
Ppm CaCO₃ (ppm)
Milligrams of calcium carbonate per liter, the unit on most water company reports.
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