Convert Cubic Meters per Hour to cm³/s

Formula

cm³/s = m³/h × 277.7777777778

Derivation from SI units:

• 1 m³/h = 1 m³ ÷ 3600 s
• 1 cm³/s = 10⁻⁶ m³ ÷ 1 s
• 1 m³/h = 0.0002777777777778 m³/s ÷ 0.000001 m³/s per cm³/s = 277.7777777778 cm³/s

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

Worked examples

1. A reading of 150 m³/h converts to 41666.66667 cm³/s.
   150 m³/h × 277.7777778 = 41666.66667 cm³/s
2. A value of 1500 m³/h is 416666.6667 cm³/s.
   1500 m³/h × 277.7777778 = 416666.6667 cm³/s

Where it's used

Cubic Meters per Hour are used for air-handling unit and fan ratings in Europe and Asia, while cubic centimeters per second appear in air permeability testers that report flow before dividing by area. Both measure volumetric flow rate (volume per unit time), so the conversion is a fixed factor.

Cubic Meter per Hour to other flow rate units

Frequently asked questions

Sources

• The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 8 (hour) with Table 2 (cubic metre).
• 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.