In air quality monitoring, there are various units of measurement for the gases that occur. For example, it is common to measure the concentration of carbon dioxide in ppm (parts per million). The quantity of particulates, on the other hand, is usually given in µg/m³ - as particulates can have different sizes. To make measured values from different sources comparable, they must be converted into the same unit. Our unit calculator for gases helps with this.
Below you will find an overview of common units of measurement for concentrations of a gas or substance in the air. Whether you are an expert in air quality or simply want to know more about your ambient air - our unit calculator gives you an easy way to convert. Temperature and air pressure are also taken into account.
ppm (parts per million): 1 ppm corresponds to 1 part in a million parts.
ppb (parts per billion): 1 ppb corresponds to 1 part in a billion parts of a gas.
mg/m³ (milligrams per cubic meter): Indicates the mass of a substance in mg/m³ per unit volume of air.
µg/m³ (micrograms per cubic meter): Indicates the mass of a substance in µg/m³ per unit volume of air.
We are still working on improving the air-Q unit calculator and are open to requests and suggestions for improvement.
Here is an overview of the units used:
ppm(parts per million): A measure of the concentration of a substance in the air. 1 ppm corresponds to 1 part in a million parts.
mg/m³(milligrams per cubic meter): Indicates the mass of a substance per unit volume of air.
ppb(parts per billion): Similar to ppm, but even more precise. 1 ppb corresponds to 1 part in a billion parts.
µg/m³(micrograms per cubic meter): Even more precise unit of measurement than mg/m³ and indicates the amount of a substance in one cubic meter of air.
The conversion between these units can vary, depending on the specific gas and ambient conditions. Our online calculator takes these variables into account and provides accurate results based on current industry standards and formulas. Whether you are an air quality expert or simply want to learn more about your ambient air, our calculator is here to help.
