Stoichiometric (Gasoline)
Mass of Air: 14.7 grams; Mass of Fuel: 1 grams
Air-Fuel Ratio (AFR): 14.7
Air-Fuel Ratio (AFR) Calculator
Physics0.0(0)
Calculates the air-fuel ratio (AFR), which represents the mass ratio of air to fuel in an internal combustion engine. This ratio is crucial for efficient combustion and emissions control.
More tools:Science & Lab Calculators
How To Use
How to use this calculator
Start with your values, or try a preset.
Step 1
Enter Mass of Air and Mass of Fuel in the units shown.
Step 2
Read Air-Fuel Ratio (AFR) in the results panel. Results update as you change the inputs.
Step 3
Choose a preset to load an example, then adjust the values for your situation.
Worked Examples
Example calculations
See the inputs and their calculated results.
Rich Mixture (Gasoline)
Mass of Air: 12 grams; Mass of Fuel: 1 grams
Air-Fuel Ratio (AFR): 12
Lean Mixture (Gasoline)
Mass of Air: 16 grams; Mass of Fuel: 1 grams
Air-Fuel Ratio (AFR): 16
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