What is a barrel (US) unit?

A barrel (US) is a volume measure equal to 42 US gallons or about 159 liters, commonly used in the petroleum industry.

What does ton register measure?

Ton register is a maritime volume unit equal to 100 cubic feet, historically used to describe internal ship capacity for commercial and regulatory purposes.

Is ton register still used internationally?

Ton register has mostly been replaced internationally by tonnage units defined in the 1969 Tonnage Convention, though it remains relevant in some historical and archival contexts.

How to Convert from Barrel (US) [bbl (US)] to Ton register [ton reg]

Convert volumes from US oil barrels to register tons using our easy-to-use online converter, ideal for maritime and petroleum industry applications.

Barrel (US) [bbl (US)]

Ton register [ton reg]

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

Barrel (US) [bbl (US)] to Ton register [ton reg] Conversion Table

Barrel (US) [bbl (US)]	Ton register [ton reg]

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 (US) [bbl (US)] to Ton register [ton reg] Conversion Table
Barrel (US) [bbl (US)]	Ton register [ton reg]

Explore More Volume Units Converter

What Is This Tool?

This tool converts volume measurements from the US oil barrel (bbl US), a standard unit in the petroleum sector, to ton register (ton reg), a maritime volume unit historically used for ship capacity and port calculations.

How to Use This Tool?

Enter the volume value in barrel (US)
Select barrel (US) as the input unit and ton register as the output unit
Click the convert button to view the equivalent volume in ton register
Use the conversion results for maritime or petroleum-related volume calculations

Key Features

Converts between barrel (US) and ton register units efficiently
Simple browser-based interface for quick conversions
Provides relevant unit definitions and usage contexts
Supports applications in petroleum industry and maritime shipping
Offers example conversions to illustrate usage

Examples

10 Barrel (US) equals 0.42109375 Ton register
50 Barrel (US) equals 2.10546875 Ton register

Common Use Cases

Measuring and reporting crude oil production and trade volumes
Converting petroleum product volumes for shipment and inventory management
Estimating ship internal capacities on historical tonnage certificates
Calculating port fees, canal dues, or pilotage charges based on vessel volume
Analyzing older ship design and archived maritime documentation

Tips & Best Practices

Ensure you select the correct units before conversion
Use this tool primarily for historical and maritime volume contexts
Cross-check conversions when applying for official or regulatory uses
Be aware that ton register is largely replaced by modern tonnage standards
Apply results carefully in contexts requiring precise volumetric measures

Limitations

Ton register is a historical measure now mostly replaced internationally
Modern regulations use different tonnage units from the 1969 Tonnage Convention
Internal ship volume reporting variations can affect conversion accuracy
This tool does not convert between volume and weight units
Not intended for contexts requiring the latest maritime tonnage standards

Frequently Asked Questions

What is a barrel (US) unit?: A barrel (US) is a volume measure equal to 42 US gallons or about 159 liters, commonly used in the petroleum industry.
What does ton register measure?: Ton register is a maritime volume unit equal to 100 cubic feet, historically used to describe internal ship capacity for commercial and regulatory purposes.
Is ton register still used internationally?: Ton register has mostly been replaced internationally by tonnage units defined in the 1969 Tonnage Convention, though it remains relevant in some historical and archival contexts.

Key Terminology

Barrel (US) [bbl (US)]: A petroleum industry volume unit equal to 42 US gallons or approximately 159 liters.
Ton register [ton reg]: A historical maritime volume unit of 100 cubic feet, used to express ship internal capacity.

Quick Knowledge Check

What volume does 1 barrel (US) represent?

100 cubic feet

42 US gallons

2.83 cubic meters

Ton register is primarily used to measure what?

Weight of crude oil

Internal capacity of ships

Petroleum inventory

Which convention mostly replaced ton register internationally?

1969 Tonnage Convention

International Measurement Standards

Maritime Volume Agreement 1980

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