Air–fuel Ratio
Air–fuel ratio, abbreviated as AFR, is the mass ratio of air to fuel mixture present in an internal combustion engines. Because it is a ratio, it is unitless.
Air–fuel ratio calculator
Air–fuel ratio formula
Where:\(\large{ AFR }\) = air–fuel ratio \(\large{ m_a }\) = air mixture \(\large{ m_f }\) = fuel mixture |
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