The Air to Fuel Ratio (AFR) Calculator is a simple, user-friendly online calculator that assists you in finding the proper air-to-fuel mixture for any combustion system. The calculator lets you instantly determine the AFR value with only two easy inputs: mass of air and mass of fuel. Made simple yet precise, it’s perfect for engineers, mechanics, and students who need quick, precise AFR results.
What is Air to Fuel Ratio (AFR)?
Air to Fuel Ratio (AFR) is an important measurement that shows the amount of air mixed with fuel prior to combustion. It is the ratio of air mass to fuel mass in an internal combustion engine. Complete fuel burning, better performance, and lower emissions are guaranteed by a correct AFR.
Air to Fuel Ratio Formula
The AFR is determined through the simple formula:
AFR = Mair / Mfuel
Where:
Mair = Air mass
Mfuel = Fuel mass
This formula provides the ratio of air and fuel masses, in the format AFR : 1.
How to Use the AFR Calculator
Calculating using the AFR calculator is easy and fast:
Type in the Mass of Air in the first field.
Type in the Mass of Fuel in the second field.
Click the “Calculate” button.
Immediately see your AFR answer below the button in the format AFR : 1.
The calculator is coded with simple HTML and JavaScript, loading quickly, doing precise calculation, and being fully compatible with all devices.
Frequently Asked Questions (FAQs) about the Air to Fuel Ratio (AFR) Calculator
What is an Air to Fuel Ratio (AFR) Calculator?
An Air to Fuel Ratio (AFR) Calculator is a basic free online calculator that finds the proper proportion of air to fuel in a combustion system. It determines the ratio from the masses of air and fuel to ensure efficient engine operation and minimum emissions.
How is AFR calculated?
AFR is calculated by the formula:
AFR = Mair / Mfuel
Here, Mair is the mass of air and Mfuel is the mass of fuel. The outcome is in the form of a ratio, say 14.7 : 1.
Why is the air to fuel ratio significant?
The AFR is essential since it dictates how well an engine combusts fuel. Proper AFR guarantees full combustion, enhances power, saves fuel, and reduces toxic exhaust emissions.
Conclusion
The AFR Calculator is a very versatile yet easy-to-use calculator for anyone that wishes to know air-to-fuel balance precisely. With only two inputs, you can immediately determine the AFR and have your engine running as efficiently, safely, and cleanly as possible.
Whether tuning an engine, examining combustion, or learning automotive science, this AFR calculator provides fast and accurate results — a must-have for performance tuning and environmental management.