Fuel Injector Converter

Convert between lb/hr (pounds per hour) and cc/min (cubic centimeters per minute) for fuel injector flow rates.

Flow Rate (lb/hr) Enter the flow rate in pounds per hour.

Fuel Specific Gravity Select your fuel type or specific gravity.

Flow Rate (cc/min) Enter the flow rate in cubic centimeters per minute.

Fuel Specific Gravity Select your fuel type or specific gravity.

The conversion formula used is: cc/min = lb/hr × 10.5 ÷ specific gravity
For the reverse: lb/hr = cc/min × specific gravity ÷ 10.5
Fuel specific gravity varies by fuel type and affects the flow rate conversion.
Higher flow injectors are needed for increased horsepower or forced induction.
When upgrading injectors, always ensure your fuel system can support the increased flow.
Manufacturers may rate injectors differently - always check if the rating is at static pressure or dynamic pressure.