Convert 1 Part per Million to Gram per Liter

1 ppm (Part per Million) is equal to 0.001 g/L (Gram per Liter). To convert from Part per Million to Gram per Liter, multiply by 0.001 or divide by 1,000.

• 1 ppm × 0.001 = 0.001 g/L
• 1 ppm ÷ 1000 = 0.001 g/L