Convert Liters per Square Decimeter per Minute to cm/s

Formula

cm/s = L/(dm²·min) × 0.1666666666667

or cm/s = L/(dm²·min) ÷ 6

Derivation from SI units:

• 1 L/(dm²·min) = 10⁻³ m³ ÷ (10⁻² m² × 60 s) = 1/600 m/s ≈ 1.667 mm/s
• 1 cm/s = 0.01 m ÷ 1 s = 1 cm³/(s·cm²)
• 1 L/(dm²·min) = 0.001666666666667 m/s ÷ 0.01 m/s per cm/s = 0.1666666666667 cm/s

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

Worked examples

1. A reading of 20 L/(dm²·min) converts to 3.333333333 cm/s.
   20 L/(dm²·min) × 0.1666666667 = 3.333333333 cm/s
2. A value of 200 L/(dm²·min) is 33.33333333 cm/s.
   200 L/(dm²·min) × 0.1666666667 = 33.33333333 cm/s

Where it's used

Liters per Square Decimeter per Minute are used for older European fabric permeability reports (e.g. DIN-based), while centimeters per second appear in filter media testing (5.33 cm/s = 32 L/min through 100 cm²). Both measure face velocity and air permeability (volumetric flow per unit area), so the conversion is a fixed factor.

Liter per Square Decimeter per Minute 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 8 (litre, minute).
• The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 2 with SI prefix centi.

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