SCFM ↔ ACFM Converter
Convert standard to actual air flow at your line pressure and temperature.
At 7 bar g, 100 SCFM shrinks to ~13 ACFM of actual volume — why receiver and pipe sizing must use ACFM, while compressor capacity is sold in SCFM.
Formula
SCFM ↔ ACFM Converter is a free scfm to acfm for process, mechanical and water engineers — instant, accurate and 100% client-side, with the governing formula and reference shown next to the result so the number can be defended, not just quoted.
About SCFM ↔ ACFM Converter
Convert standard to actual air flow at your line pressure and temperature. The calculation implements ACFM = SCFM × (P_std / P_actual) × (T_actual / T_std) (CAGI Compressed Air & Gas Handbook, ch. 2). At 7 bar g, 100 SCFM shrinks to ~13 ACFM of actual volume — why receiver and pipe sizing must use ACFM, while compressor capacity is sold in SCFM.
How to use SCFM ↔ ACFM Converter
- 1Enter Standard flow in SCFM (At 14.696 psia, 60 °F).
- 2Enter Actual line pressure (gauge) in kPa.
- 3Enter Actual temperature in °C.
- 4Read Actual flow instantly — no submit button needed.
- 5Need US units? Flip the SI/Imperial toggle and every field converts.
Why use SCFM ↔ ACFM Converter?
- ✓Implements the standard formula — ACFM = SCFM × (P_std / P_actual) × (T_actual / T_std)
- ✓Reference cited on-page: CAGI Compressed Air & Gas Handbook, ch. 2
- ✓One-click SI ⇄ Imperial toggle — values convert in place, physics stays in SI
- ✓Live worked example: the substitution recomputes from your numbers
- ✓Runs entirely in your browser — nothing uploaded, free forever
Frequently asked questions
What formula does the SCFM ↔ ACFM Converter use?+
It computes ACFM = SCFM × (P_std / P_actual) × (T_actual / T_std), per CAGI Compressed Air & Gas Handbook, ch. 2. The formula is displayed under the result along with a worked example substituted with your own inputs.
What should I keep in mind when using this calculator?+
At 7 bar g, 100 SCFM shrinks to ~13 ACFM of actual volume — why receiver and pipe sizing must use ACFM, while compressor capacity is sold in SCFM.
Does this work for any fluid?+
Yes — density and viscosity are inputs (with common fluids suggested in the field hints), so the same physics applies to water, oils, gases and process fluids. Compute always runs in SI internally, so unit mix-ups can't corrupt the result.
Is the SCFM ↔ ACFM Converter free to use?+
Yes — completely free, no sign-up, no limits. It runs client-side in your browser, so inputs stay private and results are instant even on slow connections.
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