Concentration - Solution conversion

Convert Milligram/liter to Part/million (ppm)

1 milligram/liter (mg/L) equals 1 part/million (ppm) (ppm). Enter any value below to convert from mg/L to ppm.

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1 mg/L = 1 ppm

All Concentration - Solution units

From 1 mg/L
UnitValue
Kilogram/liter kg/L 0.000001
Gram/liter g/L 0.001
Milligram/liter mg/L 1
Part/million (ppm) ppm 1
Part/billion (ppb) ppb 1,000
Grain/gallon (US) gr/gal (US) 0.0584178313
Grain/gallon (UK) gr/gal (UK) 0.0701568926
Pound/gallon (US) lb/gal (US) 0.0000000083
Pound/gallon (UK) lb/gal (UK) 0.00000001
Pound/million gallon (US) lb/Mgal (US) 0.0083454045
Pound/cubic foot lb/ft³ 0.0000000624
Pound/cubic inch lb/in³ 0
Kilogram/cubic meter kg/m³ 0.001
Gram/cubic meter g/m³ 1
Milligram/cubic meter mg/m³ 1,000
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Formula

mg/L to ppm conversion formula

Use this relationship for a direct conversion:

ppm = mg/L x 1

Worked example

2 mg/L = 2 ppm.

SI relationships follow the cited reference. Conventional and domain-specific factors use the established ConvertWin factor inventory; verify safety-critical work against the governing standard.

Quick reference

Milligram/liter to Part/million (ppm) table

Milligram/liter (mg/L)Part/million (ppm) (ppm)
0.010.01
0.10.1
11
22
55
1010
2525
5050
100100
1,0001,000

From unit

About the milligram/liter

Milligram/liter (mg/L) is a metric prefix submultiple of the Kilogram/liter (kg/L). 1 kg/L = 1,000,000 mg/L.

Symbol: mg/L

To unit

About the part/million (ppm)

Part/million (ppm) (ppm) is a unit of Concentration - Solution. 1 ppm = 1e-6 kg/L

Symbol: ppm

Keep converting

Related conversions

Part/million (ppm) to Milligram/literReverse this conversion Milligram/liter to Kilogram/litermg/L to kg/LMilligram/liter to Gram/litermg/L to g/LMilligram/liter to Part/billion (ppb)mg/L to ppb

Source

Conversion standard

The SI framework is checked against NIST Guide for the Use of the International System of Units; conventional factors come from the extended factor inventory. Calculations use full internal precision before display rounding.

View the complete concentration - solution converter

Questions

mg/L to ppm FAQ

How do you convert milligram/liter to part/million (ppm)?

Use the formula ppm = mg/L x 1. 1 milligram/liter (mg/L) equals 1 part/million (ppm) (ppm).

Is the mg/L to ppm conversion exact?

SI relationships follow the cited reference. Conventional and domain-specific factors use the established ConvertWin factor inventory; verify safety-critical work against the governing standard.