Convert Square Centimeters per Second to Stokes

Formula

St = cm²/s × 1

Derivation from SI units:

• 1 cm²/s = 10⁻⁴ m²/s = 1 St
• 1 St = 1 cm²/s = 10⁻⁴ m²/s
• 1 cm²/s = 0.0001 m²/s ÷ 0.0001 m²/s per St = 1 St

Both units are defined exactly, so the factor is exact. Square Centimeter per Second definition: square centimeter per second; Stokes definition: stokes.

Worked examples

1. A reading of 0.1 cm²/s converts to 0.1 St.
   0.1 cm²/s × 1 = 0.1 St
2. A value of 0.5 cm²/s is 0.5 St.
   0.5 cm²/s × 1 = 0.5 St

Where it's used

Square Centimeters per Second are used for diffusion coefficients (gases in air ≈ 0.1–0.2 cm²/s), while stokes appear in older physics and fluid-mechanics references. Both measure kinematic viscosity (dynamic viscosity divided by density), so the conversion is a fixed factor.

Square Centimeter per Second to other kinematic viscosity 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 centi.
• Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "stokes (St)".

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