Standard Gas Flow Converter

Convert between SCFM, SCFH, MSCFD, MMSCFD (US standard) and Nm³/h, Nm³/min, NL/min (metric normal) gas flow units.

"Standard" (US, e.g. SCFM, MMSCFD) and "Normal" (metric, e.g. Nm³/h) both express gas flow at a fixed reference temperature & pressure rather than actual operating conditions — but the two reference points are different (60°F/14.696 psia vs 0°C/1 atm) and are not interchangeable via a fixed factor. Use the tabs above to switch between the two systems rather than mixing units across them. For actual-condition (operating) volumetric flow, see the Flow Converter.