Compressed-air calculator
Standardised flow — SCFM, ACFM, Nm³
SCFM, ACFM and Nm³ do not describe the same air: each convention sets its own reference pressure, temperature and humidity. Comparing flows without bringing them to the same basis skews the comparison.
This calculator converts a flow between these conventions using the site’s actual conditions — the basis for a fair comparison between compressors, dryers and tools.
Standardised flow
SCFM (CAGI), ACFM (ISO 1217), Nm³/h, Nm³/min, DIN 1343 — with P/T/RH conditions.
| Flow | Unit | Pressure | Temp (°C) | RH (%) | SCFM | ACFM | Nm³/h | Nm³/min |
|---|---|---|---|---|---|---|---|---|
| | — | — | — | — | ||||
| | — | — | — | — | ||||
| | — | — | — | — | ||||
| | — | — | — | — |
SCFM = CAGI/ISO 1217 (1 bar abs, 20 °C). For standardised units the conditions are set automatically; only ACFM (actual conditions) is editable.
Indicative estimates — validate all results before any technical decision.