Concentration Converter

Unit converter

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Concentration Converter

Convert between 10 concentration units instantly. Select your units from the Builder tab or type a conversion like "100 cm to inches" in the AI input. Every conversion shows the full step-by-step calculation.

This converter covers all standard concentration units including metric and imperial systems. Use the reference table below to see how each unit relates to the base unit (ppm).

Concentration units reference

Unit	Symbol	ppm
Gram per Kilogram	g/kg	1000
Gram per Liter	g/L	1000
Microgram per Gram	µg/g	1
Microgram per Liter	µg/L	0.001
Milligram per Kilogram	mg/kg	1
Milligram per Liter	mg/L	1
Parts per Billion	ppb	0.001
Parts per Million	ppm	1
Parts per Trillion	ppt	1 × 10⁻⁶
Percent	%	10000

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