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Concentration-Solution Converter

Convert g/L, mg/L, ppm, lb/gal, and more — instantly.

Free solution concentration converter. Convert grams per liter, milligrams per liter, parts per million, pounds per gallon, and more. For dilute aqueous solutions, ppm equals mg/L when density is about 1 kg/L. Use the express converter for any unit pair, or open a quick conversion below.

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1 gram per liter = 1,000 milligrams per liter

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Popular conversions

Hand-picked pairs with dedicated converter pages — open one to convert instantly.

Gram per Liter → Milligram per Liter

Gram per Liter to Milligram per Liter

Milligram per Liter → Gram per Liter

Milligram per Liter to Gram per Liter

Kilogram per Liter → Gram per Liter

Kilogram per Liter to Gram per Liter

Gram per Liter → Kilogram per Liter

Gram per Liter to Kilogram per Liter

Part per Million (ppm) → Milligram per Liter

Part per Million (ppm) to Milligram per Liter

Milligram per Liter → Part per Million (ppm)

Milligram per Liter to Part per Million (ppm)

Pound per Gallon (US) → Gram per Liter

Pound per Gallon (US) to Gram per Liter

Gram per Liter → Pound per Gallon (US)

Gram per Liter to Pound per Gallon (US)

Browse all solution concentration units

Pick any unit to open a two-way conversion. For dilute aqueous solutions, parts per million (ppm) equals milligrams per liter (mg/L) when density is approximately 1 kg/L.

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KILOGRAM PER LITER

1 kg/L = 1,000 g/L

kilogram per liter (kg/L) → gram per liter (g/L) gram per liter (g/L) → kilogram per liter (kg/L)

GRAM PER LITER

1 g/L = 1,000 mg/L

gram per liter (g/L) → milligram per liter (mg/L) milligram per liter (mg/L) → gram per liter (g/L)

MILLIGRAM PER LITER

1 mg/L = 1 ppm

milligram per liter (mg/L) → part per million (ppm) (ppm) part per million (ppm) (ppm) → milligram per liter (mg/L)

PART PER MILLION (PPM)

1 ppm = 1 mg/L

part per million (ppm) (ppm) → milligram per liter (mg/L) milligram per liter (mg/L) → part per million (ppm) (ppm)

GRAIN PER GALLON (US)

1 gr/gal (US) = 0.0000171181 kg/L

grain per gallon (us) (gr/gal (US)) → kilogram per liter (kg/L) kilogram per liter (kg/L) → grain per gallon (us) (gr/gal (US))

GRAIN PER GALLON (UK)

1 gr/gal (UK) = 0.0000142538 kg/L

grain per gallon (uk) (gr/gal (UK)) → kilogram per liter (kg/L) kilogram per liter (kg/L) → grain per gallon (uk) (gr/gal (UK))

POUND PER GALLON (US)

1 lb/gal (US) = 119.8264273 g/L

pound per gallon (us) (lb/gal (US)) → gram per liter (g/L) gram per liter (g/L) → pound per gallon (us) (lb/gal (US))

POUND PER GALLON (UK)

1 lb/gal (UK) = 0.0997763727 kg/L

pound per gallon (uk) (lb/gal (UK)) → kilogram per liter (kg/L) kilogram per liter (kg/L) → pound per gallon (uk) (lb/gal (UK))

POUND PER MILLION GALLON (US)

1 lb/Mgal (US) = 1.198264e-7 kg/L

pound per million gallon (us) (lb/Mgal (US)) → kilogram per liter (kg/L) kilogram per liter (kg/L) → pound per million gallon (us) (lb/Mgal (US))

POUND PER MILLION GALLON (UK)

1 lb/Mgal (UK) = 9.977637e-8 kg/L

pound per million gallon (uk) (lb/Mgal (UK)) → kilogram per liter (kg/L) kilogram per liter (kg/L) → pound per million gallon (uk) (lb/Mgal (UK))

POUND PER CUBIC FOOT

1 lb/ft³ = 0.0160184634 kg/L

pound per cubic foot (lb/ft³) → kilogram per liter (kg/L) kilogram per liter (kg/L) → pound per cubic foot (lb/ft³)