Gas Flow Unit Conversion Calculator: Liters per Second (L/s) to Standard Cubic Feet per Minute (SCFM)

Accurate unit conversion is crucial in process industries, HVAC systems, and gas flow monitoring across both SI and imperial systems. Especially when combining international parts, standardizing instrument readings, or evaluating design criteria, one common conversion is from Liters per Second (L/s) to Standard Cubic Feet per Minute (SCFM).

This article explains the definition, conversion formula, real-world usage, and provides a simple calculator for engineers, designers, and technicians working across mixed-unit applications.

L/s to SCFM Gas Flow Conversion Calculator

The calculator below allows you convert Liters per Second (L/s) to Standard Cubic Feet per Minute (SCFM). This helps fill the gap between SI-measured flow sensors and imperial-standard systems.

Conversion Formula

Flow in SCFM = Flow in L/s × 2.11888

Simply enter your L/s the amount to receive the comparable SCFM outcome right away.

Definition: Liters per Second (L/s)

A metric unit representing volumetric flow rate, liters per second (L/s) is mostly utilized in process industries, gas flow monitoring, and water distribution systems. It is the number of liters flowing through a spot every second.

Key Applications of L/s

• Control of flow in wastewater and chemical dosing systems
• Measurement of process gas flow in SI-standard systems
• Design of sprinkler systems and fire suppression
• Studies on ventilation and HVAC duct air movement
• Metric unit international compliance reporting

Definition: Standard Cubic Feet per Minute (SCFM)

An imperial volumetric flow unit, Standard Cubic Feet per Minute (SCFM) denotes gas volume supplied per minute under consistent conditions usually 14.696 psi and 60°F / 101.325 kPa and 15.56°C. In the United States and sectors using old imperial systems, SCFM is rather common.

Key Applications of SCFM

• Sizing of pneumatic equipment and air compressor rating
• Burners and gas supply systems
• Imperial style SCADA/DCS flow monitoring
• North American regulatory reporting
• Sizing control valves and orifice plates under normal conditions

Example Calculation

To convert 25 L/s to SCFM:

SCFM = 25 × 2.11888 = 52.972 SCFM

So, 25 Liters per Second = approximately 52.97 SCFM

Quick Reference Conversion Table

Uses of L/s to SCFM Conversion

• Match SCFM-rated equipment with SI-based sensors
• Global project process flow documentation should be standardized.
• Examine gas supply system specifications in overseas contracts
• When changing unit systems, size control components, compressors, or blowers.
• For alarms and trends, log SCFM data from L/s meters into SCADA or PLCs.

Who Should use this Conversion?

• Instrumentation experts combining worldwide tools
• HVAC and fire system engineers operating across regulatory zones
• Process engineers handling gas and vapor flow in mixed units
• System designers and consultants assisting U.S. and foreign customers
• Teams in maintenance and calibration double-checking flow rate measurements

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