Parts per billion to micrograms per cubic meter
Type a value in ppb to get it in µg/m³ instantly.
57.28µg/m³
Nothing on our list is smaller: clean country air is 10× higher. That is about one molecule of it in every 20,000,000 of air.
Convert the other way: µg/m³ to ppb
What it means
What is in the air?
Weight-per-volume figures assume 25 °C and one atmosphere. A hot or high-altitude measurement needs its own molar volume.
The math
How to convert ppb to µg/m³
Volume becomes weight through the molar mass: mg/m³ = ppm × molar mass ÷ 24.45 at 25 °C. The figures below use the gas selected above.
Example: 50 ppb = 57.2802 µg/m³.
The table below is for Carbon monoxide, CO (28.01 g/mol), using its molar mass.
Every unit
Your concentration in every unit
Tables
ppb to µg/m³ conversion table
| ppb | µg/m³ |
|---|---|
| 0.1 ppb | 0.11456 µg/m³ |
| 0.5 ppb | 0.572802 µg/m³ |
| 1 ppb | 1.1456 µg/m³ |
| 5 ppb | 5.72802 µg/m³ |
| 10 ppb | 11.456 µg/m³ |
| 25 ppb | 28.6401 µg/m³ |
| 50 ppb | 57.2802 µg/m³ |
| 100 ppb | 114.56 µg/m³ |
| 200 ppb | 229.121 µg/m³ |
| 500 ppb | 572.802 µg/m³ |
| 1,000 ppb | 1,145.6 µg/m³ |
µg/m³ to ppb conversion table
| µg/m³ | ppb |
|---|---|
| 0.1 µg/m³ | 0.0872903 ppb |
| 0.5 µg/m³ | 0.436451 ppb |
| 1 µg/m³ | 0.872903 ppb |
| 5 µg/m³ | 4.36451 ppb |
| 10 µg/m³ | 8.72903 ppb |
| 25 µg/m³ | 21.8226 ppb |
| 50 µg/m³ | 43.6451 ppb |
| 100 µg/m³ | 87.2903 ppb |
| 200 µg/m³ | 174.581 ppb |
| 500 µg/m³ | 436.451 ppb |
| 1,000 µg/m³ | 872.903 ppb |
Quick answers
Quick answers
- How many µg/m³ is 1 ppb?
- 1 ppb is 1.1456 µg/m³.
- How many µg/m³ is 10 ppb?
- 10 ppb is 11.456 µg/m³.
- How many µg/m³ is 50 ppb?
- 50 ppb is 57.2802 µg/m³.
The units
About these units
Parts per billion (ppb)
For trace pollutants such as ozone and nitrogen dioxide.
Micrograms per cubic meter (µg/m³)
The air quality standard for outdoor pollution.
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