Convert parts per million to grain per US gallon (as CaCO₃)

1 ppm = 0.05841803949 gpg

1 ppm = 0.0584 gpg
1 ppm in every concentration unit
percent0.0001 %
fraction (0–1)0.000001 fraction
parts per million1 ppm
parts per billion1,000 ppb
grain per US gallon (as CaCO₃)0.0584 gpg
How the conversion works

Multiply by 0.05841803949 to go from parts per million to grain per US gallon (as CaCO₃), or divide by it to go back. Every conversion on this site routes through the SI value (%) rather than a table of pairwise factors, so a round-trip returns exactly what you started with.

Going the other way? grain per US gallon (as CaCO₃) to parts per million — 1 gpg = 17.118 ppm.

parts per million to grain per US gallon (as CaCO₃) — common values
1 ppm0.058418039 gpg
2 ppm0.11683608 gpg
3 ppm0.17525412 gpg
5 ppm0.2920902 gpg
10 ppm0.58418039 gpg
15 ppm0.87627059 gpg
20 ppm1.1683608 gpg
25 ppm1.460451 gpg
50 ppm2.920902 gpg
75 ppm4.381353 gpg
100 ppm5.8418039 gpg
250 ppm14.60451 gpg
500 ppm29.20902 gpg
1000 ppm58.418039 gpg