⛽ Fuel Calculators
Calculate air-fuel ratios, injector sizing, boost pressure, turbo sizing, and engine airflow requirements.
All Fuel Tools
Air-Fuel Ratio Calculator Calculate air-fuel ratio (AFR), lambda, and equivalence ratio for gasoline, E85, diesel, and other fuels. Injector Size Calculator Calculate the required fuel injector size (cc/min or lb/hr) based on horsepower, BSFC, and number of injectors. Boost Pressure Calculator Calculate absolute pressure, density ratio, and estimated power gain from boost pressure in PSI or BAR. Turbo Sizing Calculator Calculate required turbocharger mass flow (lb/min) and pressure ratio for a given horsepower target. Engine CFM Calculator Calculate engine airflow in CFM (cubic feet per minute) from displacement, RPM, and volumetric efficiency.