What is a barrel (oil) in terms of volume?

A barrel (oil) is a unit used in the petroleum industry that equals 42 U.S. gallons or exactly 158.987294928 liters.

Why does the size of the tun vary?

The tun's size has historically changed regionally and with different gallon definitions, causing variations in its exact volume.

When should I use this barrel to tun conversion?

Use this conversion to relate modern petroleum volumes to traditional English units, especially in historical research or comparing legacy data.

How to Convert from Barrel (oil) [bbl (oil)] to Tun

An easy-to-use volume unit converter that transforms values from barrel (oil) to tun, integrating modern petroleum measurements with traditional English liquid volume units.

Barrel (oil) [bbl (oil)]

Tun

Please check your input. It must be a valid numeric value.

Barrel (oil) [bbl (oil)] to Tun Conversion Table

Barrel (oil) [bbl (oil)]	Tun

Custom Unit Conversion Table Generator – Instant Printable Conversion Tables

Start Value

Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.

End Value

Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.

Interval

Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.

Barrel (oil) [bbl (oil)] to Tun Conversion Table
Barrel (oil) [bbl (oil)]	Tun

Explore More Volume Units Converter

What Is This Tool?

This converter helps you convert volume measurements from barrel (oil), a modern unit widely used in the petroleum industry, to tun, a traditional English unit often used for large casks and historical liquid volume records.

How to Use This Tool?

Enter the amount in barrel (oil) you wish to convert.
Select barrel (oil) as the source unit and tun as the target unit.
Click the convert button to get the equivalent volume in tun.
Use the results to compare or integrate volumes across different measurement systems.

Key Features

Converts barrel (oil) units to tun accurately using established conversion rates.
Supports volume measurement translation between modern petroleum and historical cask units.
Browser-based and user-friendly for easy accessibility.
Includes relevant context for practical use in industry, research, and archival work.

Examples

1 barrel (oil) converts to approximately 0.1666666667 tun.
6 barrels (oil) equal 1 tun.

Common Use Cases

Reporting crude oil production and transport volumes.
Integrating historical wine or ale cask volumes with modern data.
Converting liquid volume quantities for customs and trade records.
Relating brewery and distillery old measurements to current units.

Tips & Best Practices

Confirm the context and source era when working with tun units because their size has varied historically.
Use the conversion for rough equivalences rather than exact archival values if historical precision is essential.
Double-check unit selections before conversion to ensure accurate results.
Use this tool for comparative volume assessments in both modern and traditional frameworks.

Limitations

Tun values can vary depending on historical and regional definitions, so the conversion is an approximation.
While barrel (oil) units are fixed, tun measurements are less exact for modern uses.
The conversion precision should be adjusted according to the specific needs of archival or legal analysis.

Frequently Asked Questions

What is a barrel (oil) in terms of volume?: A barrel (oil) is a unit used in the petroleum industry that equals 42 U.S. gallons or exactly 158.987294928 liters.
Why does the size of the tun vary?: The tun's size has historically changed regionally and with different gallon definitions, causing variations in its exact volume.
When should I use this barrel to tun conversion?: Use this conversion to relate modern petroleum volumes to traditional English units, especially in historical research or comparing legacy data.

Key Terminology

Barrel (oil) [bbl (oil)]: A non-SI volume unit used in petroleum, defined as 42 U.S. gallons or about 159 liters.
Tun: A traditional English liquid volume unit for large casks, historically defined as 252 wine gallons with regional size variations.

Quick Knowledge Check

What is the volume equivalent of 1 barrel (oil) in tun?

0.5 tun

0.1666666667 tun

1 tun

For which purpose is the tun commonly used historically?

Measuring crude oil flow

Describing large wine or ale casks

Counting barrels per day

What should you consider when converting tun units?

Tun size may vary historically and regionally

Tun is always exactly 100 liters

Tun is identical to barrel (oil)

Share Us

Similar Calculators

Online Current Units Converter Online Surface Tension Units Converter Online Volume Charge Density Units Converter Online Prefixes Units Converter Online Illumination Units Converter