cubic metre per second

Name	Symbol	Quantity	Base units
cubic metre per second	m³ s⁻¹	volumetric flow rate	m³ s⁻¹
The cubic metre per second, symbol m³ s⁻¹, is the SI coherent derived unit of volumetric flow rate.
Definition			c³ Δν_Cs⁻²
$1 \mspace{4mu} \text{m}^3 \mspace{4mu} \text{s}^{-1} \mspace{6mu} = \dfrac{(9 \mspace{4mu} 192 \mspace{4mu} 631 \mspace{4mu} 770)^2}{(299 \mspace{4mu} 792 \mspace{4mu} 458)^3} \mspace{6mu} \dfrac{c^3}{{\Delta \nu _{Cs}}^2}\\ \\ \\ 1 \mspace{4mu} \text{m}^3 \mspace{4mu} \text{s}^{-1} \mspace{6mu} \approx 3.136 \mspace{4mu} 300 \mspace{4mu} 151 \mspace{4mu} 321 \mspace{4mu} 367 \mspace{4mu} 418 \times10^{-6} \mspace{6mu} c^3 \mspace{4mu} {\Delta \nu _{Cs}}^{-2}$

The cubic metre per second’s uses include the measurement of water flow, such as river discharge rates, and air flow rates in ventilation systems.