37.5 % to ppm

37.5 % = 375,000 ppm

%ppm
31.5 %315,000
33.5 %335,000
35.5 %355,000
37.5375,000
39.5 %395,000
41.5 %415,000
43.5 %435,000

37.5 % = 375,000 ppm

Formula

1 ppm = 1 mg/L (aqueous, density ≈ 1 kg/L) · 1 ppb = 0.001 mg/L · 1% = 10,000 ppm