Convert SLPM to Cubic Meters per Hour

Formula

m³/h = SLPM × 0.06

or m³/h = SLPM ÷ 16.66666666667

Derivation from SI units:

• 1 SLPM = 10⁻³ m³ ÷ 60 s, measured at standard reference conditions
• 1 m³/h = 1 m³ ÷ 3600 s
• 1 SLPM = 0.00001666666666667 m³/s ÷ 0.0002777777777778 m³/s per m³/h = 0.06 m³/h
• Standard ↔ actual: Q_actual = Q_standard × (T_actual / T_ref) × (P_ref / P_actual), absolute T and P.

Both units are defined exactly, so the factor is exact. SLPM definition: SLPM; Cubic Meter per Hour definition: cubic meter per hour.

Worked examples

1. A reading of 2 SLPM converts to 0.12 m³/h.
   2 SLPM × 0.06 = 0.12 m³/h
2. A value of 50 SLPM is 3 m³/h.
   50 SLPM × 0.06 = 3 m³/h

Where it's used

SLPM are used for mass flow meters and controllers, while cubic meters per hour appear in air-handling unit and fan ratings in Europe and Asia. Both measure volumetric flow rate (volume per unit time), so the conversion is a fixed factor.

SLPM to other flow rate units

Frequently asked questions

Sources

• SEMI E12 Guide for Standard Temperature and Pressure Used in the Measurement of Mass Flow, SEMI , standard conditions 0 °C, 101.325 kPa.
• ISO 6358-1:2013 Pneumatic fluid power — Determination of flow-rate characteristics of components using compressible fluids, International Organization for Standardization .
• The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 8 (hour) with Table 2 (cubic metre).

Last reviewed: 2026-10-15. Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.