Convert Meters per Second to Decimeters per Second

Formula

dm/s = m/s × 10

Derivation from SI units:

• 1 m/s = 1 m ÷ 1 s (equivalently 1 m³/s of flow per 1 m² of area)
• 1 dm/s = 0.1 m ÷ 1 s

Both units are defined exactly, so the factor is exact. Meter per Second definition: meter per second; Decimeter per Second definition: decimeter per second.

Worked examples

1. A reading of 0.4 m/s converts to 4 dm/s.
   0.4 m/s × 10 = 4 dm/s
2. A value of 2 m/s is 20 dm/s.
   2 m/s × 10 = 20 dm/s

Where it's used

Meters per Second are used for filter face velocity (ISO 16890 full-size filters ≈ 2.7 m/s), while decimeters per second appear in occasional instrument read-outs. Both measure face velocity and air permeability (volumetric flow per unit area), so the conversion is a fixed factor.

Meter 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, coherent derived units.
• The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 2 with SI prefix deci.

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