Unit Converter
PPM, PPB, Vol%, LEL% Converter for Flammable/Toxic Gases
Parts per million
Parts per billion
Volume percent
Select a gas to enable LEL conversion
Lower Explosive Limit
Percent of LEL
* To calculate LEL / LEL%, choose a gas first.
** This tool is for general guidance only and not for real-world safety calculations. Karf&Scoot accepts no responsibility for errors.
** This tool is for general guidance only and not for real-world safety calculations. Karf&Scoot accepts no responsibility for errors.