Convert Pounds per UK gallon to Micrograms per cubic metre
Convert Pounds per UK gallon (lb/gal (UK)) to Micrograms per cubic metre (µg/m³) instantly and accurately.
Conversion Formula
µg/m³ = lb/gal (UK) × 99776372660
About Pounds per UK gallon
The pound per UK gallon (lb/gal UK) equals ≈99.776 kg/m³, based on the avoirdupois pound and the UK gallon (4.54609 L). Used historically in British petroleum refining and Admiralty fuel specifications; the original UK specific-gravity tables reference lb/gal UK. Still encountered in some Commonwealth marine and aviation standards. 1 lb/gal (UK) ≈99.776 kg/m³ ≈6.228 lb/ft³.
About Micrograms per cubic metre
The microgram per cubic metre (µg/m³) equals 10⁻⁹ kg/m³, the standard unit for ambient air quality reporting. WHO 2021 guidelines set annual mean limits for PM2.5 at 5 µg/m³ and PM10 at 15 µg/m³; NIOSH REL for nuisance dust is 10 000 µg/m³. Urban background air typically contains 10-50 µg/m³ of total suspended particles. 1 µg/m³ = 10⁻⁹ kg/m³ = 10⁻⁶ g/m³.
Quick Reference Table
| Pounds per UK gallon (lb/gal (UK)) | Micrograms per cubic metre (µg/m³) |
|---|---|
| 1 lb/gal (UK) | 9.978 × 1010 µg/m³ |
| 2 lb/gal (UK) | 1.996 × 1011 µg/m³ |
| 5 lb/gal (UK) | 4.989 × 1011 µg/m³ |
| 10 lb/gal (UK) | 9.978 × 1011 µg/m³ |
| 25 lb/gal (UK) | 2.494 × 1012 µg/m³ |
| 50 lb/gal (UK) | 4.989 × 1012 µg/m³ |
| 100 lb/gal (UK) | 9.978 × 1012 µg/m³ |