American Compressor Company
    American Compressor Company
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    SCFM to ACFM Converter

    Convert between SCFM (standard conditions) and ACFM (actual conditions at your site).

    Inputs

    Results

    Actual Flow
    13.35ACFM
    Atmospheric Pressure at altitude
    14.696PSIA

    Estimates only. For production sizing decisions, contact our engineering team.

    About this calculator

    SCFM is measured at a standard reference (typically 14.696 PSIA, 68°F, 0% humidity). ACFM is the actual volumetric flow at your operating pressure and temperature. Compressors are rated in SCFM (or ICFM); air-using equipment specs are sometimes in ACFM. Mixing them up leads to undersized systems.

    Higher altitude or higher temperature both reduce air density, so the same mass of air takes up more actual volume (higher ACFM for a given SCFM).

    Formula

    ACFM = SCFM × (Pstd / Pact) × (Tact / Tstd), with all temperatures in Rankine (°F + 460).

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    Talk to an Expert

    Our team has 65+ years in service helping facilities across Los Angeles County find the right compressed air or blower solution. Call us directly or fill out the form — we respond within one business day.

    (800) 955-6188

    Kaeser Authorized Dealer

    Factory warranty and OEM parts on every job.

    Fast Response

    Most service calls scheduled within 24–48 hours.

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