What is a pennyweight?

A pennyweight (pwt) is a troy weight unit equal to 24 grains or 1/20 of a troy ounce, used mainly for small masses of precious metals.

What is the stone (US) unit?

The stone (US) is a traditional British mass unit equal to 14 avoirdupois pounds, typically used informally for body and commodity weights.

Why convert pennyweight to stone (US)?

To express small precious metal weights in a larger traditional unit that relates to human or livestock weights, aiding comparison and record keeping.

Convert Pennyweight [pwt] to Stone (US) Online

Easily convert weight from pennyweight (pwt), a troy mass unit used for precious metals, to stone (US), a traditional British unit largely for body and commodity weights. Use our online tool for quick and accurate conversions.

Pennyweight [pwt]

Stone (US)

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

Pennyweight [pwt] to Stone (US) Conversion Table

Pennyweight [pwt]	Stone (US)

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.

Pennyweight [pwt] to Stone (US) Conversion Table
Pennyweight [pwt]	Stone (US)

Explore More Weight And Mass Units Converter

What Is This Tool?

This online converter transforms weight values from pennyweight, a troy system unit for small precious metal masses, into stone (US), a traditional British unit typically employed for human or commodity weight measurements.

How to Use This Tool?

Enter the weight value in pennyweight [pwt]
Select 'pennyweight [pwt]' as the input unit if not preselected
Choose 'stone (US)' as the output unit
Click the convert button to get the equivalent mass in stone (US)

Key Features

Converts pennyweight [pwt] to stone (US) based on official conversion rate
Supports units from different weight systems: troy and avoirdupois
Browser-based, simple interface for quick conversions
Useful for trade, jewelry, historical data, and body weight comparisons

Examples

Convert 10 pennyweights: 10 × 0.0002742857 = 0.002742857 stone (US)
Convert 1000 pennyweights: 1000 × 0.0002742857 = 0.2742857 stone (US)

Common Use Cases

Weighing small amounts of precious metals for pricing and trade
Measuring jewelry component masses and hallmarking
Reporting assay outcomes and historical troy weight data
Expressing precious metal weights in terms of larger body or livestock weight units
Converting older imperial records into more familiar mass units for health or engineering

Tips & Best Practices

Understand that pennyweight belongs to the troy system, while stone (US) uses avoirdupois
Use precise values for small mass conversions to ensure meaningful results
Check the context of stone usage, as it is less common in the US but prevalent in British and Irish settings
Consider the differences in weight systems when interpreting conversion results

Limitations

Pennyweight and stone are based on different weight systems, requiring careful conversion
Stone (US) is uncommon in the United States but more relevant in UK and Ireland contexts
Converting tiny masses like pennyweights into larger units such as stones results in very small decimal outputs

Frequently Asked Questions

What is a pennyweight?: A pennyweight (pwt) is a troy weight unit equal to 24 grains or 1/20 of a troy ounce, used mainly for small masses of precious metals.
What is the stone (US) unit?: The stone (US) is a traditional British mass unit equal to 14 avoirdupois pounds, typically used informally for body and commodity weights.
Why convert pennyweight to stone (US)?: To express small precious metal weights in a larger traditional unit that relates to human or livestock weights, aiding comparison and record keeping.

Key Terminology

Pennyweight (pwt): A troy weight unit equal to 24 grains or 1/20 of a troy ounce, used for measuring small quantities like precious metals.
Stone (US): A traditional British mass unit equal to 14 avoirdupois pounds, used mostly for body weight and commodity measurements.
Troy Weight System: A system of units primarily used for precious metals, distinct from the avoirdupois system.
Avoirdupois System: A common system of mass measurement used in the US and UK for most everyday weights excluding precious metals.

Quick Knowledge Check

Which weight system does the pennyweight belong to?

Avoirdupois system

Troy weight system

Metric system

What larger unit does the stone (US) equal?

12 pounds

14 pounds

16 pounds

In which contexts is stone (US) mostly used?

UK and Ireland

United States

Worldwide metric records

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