Fuel Octane Rating Blend & Mix Ratio Calculator (RON, MON & AKI)
Calculate the resulting octane rating when blending two different fuels (e.g., mixing 87 with 93 pump gas, or mixing pump fuel with 100+ octane race fuel or E85) to prevent engine detonation and knock.
Final Blended Octane Rating
Calculator Inputs
Final Blended Octane Rating
Total Fuel Volume in Tank
Octane Increase vs Fuel 1
Fuel Volume Blending Breakdown
Automotive tuning and motorsport calculation tool. Assumes linear volumetric octane blending (ASTM D2699/D2700).
This calculator is designed for educational and informational purposes based on publicly declared statutory frameworks. The outputs do not constitute binding financial, tax, or legal advice. We assume no liability for decisions made based on these estimates. Always verify with the relevant official authorities or a certified professional advisor.
Calculation Methodology
Resulting Octane = [(Volume 1 * Octane 1) + (Volume 2 * Octane 2)] / (Volume 1 + Volume 2). Applicable to AKI (Anti-Knock Index) and RON (Research Octane Number).
Frequently Asked Questions
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