Milligrams per liter to Parts per million in dilute water (≈ mg/L)

1 mg/L ≈ 1 ppm (water ≈ mg/L). Edit either value to convert instantly.

Value

From

1 mg/L≈ppm (water ≈ mg/L)

Decimal places

Conversion formula

ppm (water ≈ mg/L) = mg/L × (0.001) × (1,000)

1 mg/L ≈ 1 ppm (water ≈ mg/L)

milligram per liter (mg/L)

milligram per liter is a unit of solution mass concentration: 1 mg/L = 0.001 kg/m³.

Source: BIPM SI Brochure, 9th edition: SI units, prefixes and accepted units

part per million in dilute water (≈ mg/L) (ppm (water ≈ mg/L))

part per million in dilute water (≈ mg/L) is a unit of solution mass concentration: 1 ppm (water ≈ mg/L) ≈ 0.001 kg/m³. This is only an approximation for dilute water with density about 1 kg/L: 1 ppm ≈ 1 mg/L. For other liquids or concentrations, density is required.

Source: USGS PHREEQC: concentration units and solution density

Conversion table

mg/L	ppm (water ≈ mg/L)
	≈ 1
	≈ 2
	≈ 5
	≈ 10
	≈ 15
	≈ 20
	≈ 25
	≈ 30
	≈ 40
	≈ 45

mg/L	ppm (water ≈ mg/L)
	≈ 50
	≈ 60
	≈ 70
	≈ 80
	≈ 90
	≈ 100
	≈ 150
	≈ 160
	≈ 170
	≈ 180

Frequently asked questions

How many parts per million in dilute water (≈ mg/L) are in 1 milligram per liter?

1 mg/L ≈ 1 ppm (water ≈ mg/L). ppm (water ≈ mg/L) = mg/L × (0.001) × (1,000)

How do I convert mg/L to ppm (water ≈ mg/L)?

ppm (water ≈ mg/L) = mg/L × (0.001) × (1,000)

Is 1 milligram per liter bigger than 1 part per million in dilute water (≈ mg/L)?

1 mg/L ≈ 1 ppm (water ≈ mg/L).

Related conversions

Reverse conversion: parts per million in dilute water (≈ mg/L) to milligrams per liter