What is the formula of CNG?
Emily Cortez
Updated on January 14, 2026
The chemical formula of CNG – CH4 – is also the chemical formula for Natural Gas and is also the chemical formula for Methane. Methane molecule contains one carbon and 4 hydrogen atoms and is the simplest of the flammable hydrocarbons. This also means that CNG has the smallest carbon footprint of any hydrocarbon.