Convert Millimeters per Second to L/(dm²·min)

Formula

L/(dm²·min) = mm/s × 0.6

or L/(dm²·min) = mm/s ÷ 1.666666666667

Derivation from SI units:

• 1 mm/s = 0.001 m ÷ 1 s = 1 L/(m²·s)
• 1 L/(dm²·min) = 10⁻³ m³ ÷ (10⁻² m² × 60 s) = 1/600 m/s ≈ 1.667 mm/s
• 1 mm/s = 0.001 m/s ÷ 0.001666666666667 m/s per L/(dm²·min) = 0.6 L/(dm²·min)

Both units are defined exactly, so the factor is exact. Millimeter per Second definition: millimeter per second; Liter per Square Decimeter per Minute definition: liter per square decimeter per minute.

Worked examples

1. A reading of 100 mm/s converts to 60 L/(dm²·min).
   100 mm/s × 0.6 = 60 L/(dm²·min)
2. A value of 500 mm/s is 300 L/(dm²·min).
   500 mm/s × 0.6 = 300 L/(dm²·min)

Where it's used

Millimeters per Second are used for air permeability of fabrics, nonwovens and papers (ISO 9237, EN ISO 9237), while liters per square decimeter per minute appear in older European fabric permeability reports (e.g. DIN-based). Both measure face velocity and air permeability (volumetric flow per unit area), so the conversion is a fixed factor.

Millimeter per Second to other face velocity & air permeability units

Frequently asked questions

Sources

• The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 2 with SI prefix milli.
• ISO 9237:1995 Textiles — Determination of the permeability of fabrics to air, International Organization for Standardization , results expressed in mm/s.
• The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 8 (litre, minute).

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