Select the quantity to solve for, or calculate capacity per length from a custom or preset inner diameter. The diameter method assumes a straight vertical cylindrical tank or a full pipe.

Divide a barrel quantity by its measured length or liquid-level change. Use the same barrel definition throughout.

Changing the unit converts the entered length.

Barrels Per Inch Formula

The following formula is used to calculate the barrels per inch for a given total barrels and total inches.

BPI = TB / TI

Variables:

  • BPI is the barrels per inch
  • TB is the total barrels
  • TI is the total inches

To calculate the barrels per inch, divide the total barrels by the total inches. For diameter-based capacity, use ฯ€ ร— (inner diameter รท 2)ยฒ รท cubic inches per barrel, with diameter in inches. A petroleum barrel contains 9702 cubic inches (42 US gallons). This is not a horizontal-tank liquid-depth chart.

What is Barrels Per Inch?

Barrels per inch is a measurement used to determine the amount of barrels distributed over a given length in inches. This metric is commonly used in industries where the distribution of liquid or other materials in barrels needs to be measured over a specific length, such as in pipelines or storage facilities.

How to Calculate Barrels Per Inch?

The following steps outline how to calculate the Barrels Per Inch.

  1. First, determine the total barrels (TB).
  2. Next, determine the total inches (TI).
  3. Finally, calculate the Barrels Per Inch using the formula BPI = TB / TI.
  4. After inserting the values and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

Total Barrels (TB) = 100

Total Inches (TI) = 50. Therefore, 100 รท 50 = 2 barrels per inch. Use the same barrel definition for all quantity and rate inputs.