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Calcimator

Octane Blending Calculator

Calculate blended octane rating from up to three gasoline component volumes and octane numbers.

Inputs

bbl
RON
bbl
RON
bbl
RON
RON

Results

Blend Octane Rating

85 RON

Octane Gap from Target-6 RON
Meets Target0
Total Blend Volume10,000 bbl
Component 1 Share50%
Component 2 Share50%
Component 3 Share0%
Required Component 1 % (2-comp blend)70%
Estimated Octane Premium Value-$25,200.00
How to Use This Calculator
  1. Enter Component 1 Volume, Component 1 Octane, and Component 2 Volume.
  2. Set Component 2 Octane, Component 3 Volume, and Component 3 Octane.
  3. Adjust Target Octane as needed.
  4. Review the Blend Octane Rating (RON) result.
  5. Use Octane Gap from Target (RON) and Meets Target to inform your decision.

How the result changes with Component 1 Octane

Component 1 OctaneBlend Octane Rating
5864 RON
7874 RON
10286 RON
12296 RON

What each input means

Component 1 Volume
Volume of the first blending component (e.g., reformate).
Component 1 Octane
Research Octane Number of the first component. Reformate is typically 95–102.
Component 2 Volume
Volume of the second blending component (e.g., straight-run naphtha).
Component 2 Octane
Research Octane Number of the second component. Straight-run naphtha is typically 65–75.
Component 3 Volume
Volume of an optional third component (e.g., isomerate). Set to 0 if only two components.
Component 3 Octane
Research Octane Number of the optional third component.
Target Octane
Desired octane rating for the finished gasoline blend.

What each result means

Meets Target
1 = Yes, 0 = No

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Component 1 Volume = 5000, Component 1 Octane = 100, Component 2 Volume = 5000, Component 2 Octane = 70 = 7 input(s) provided
  2. Calculate Blend Octane Rating
    85 = 85
  3. Calculate Octane Gap from Target
    Octane Gap from Target
    -6 = -6
  4. Calculate Meets Target
    Meets Target
    0 = 0

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