Convert 1 milligram / cubic meter to milligram / liter

1 mg/m³ (milligram / cubic meter) is equal to 0.001 milligram / liter. To convert from milligram / cubic meter to milligram / liter, multiply by 0.001 or divide by 1,000.

• 1 mg/m³ × 0.001 = 0.001 milligram / liter
• 1 mg/m³ ÷ 1000 = 0.001 milligram / liter