Quantity Converter

Free Quantity Converter — switch between dozen, pair, score, gross, ream and other counted quantity units in one click.

859.9K uses Updated · 2026-05-12 Runs locally · zero upload
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How to Use Quantity Converter

The Quantity Converter turns counted items between common bulk units. Whether you measure eggs in dozens or paper in reams, the Quantity Converter has you covered.

  1. Enter the value — A positive number.
  2. Pick the source unit — Piece, pair, dozen, score, gross, great gross, or ream.
  3. Pick the target unit — Any of the above.
  4. Read the result — The Quantity Converter shows the converted value and all alternatives at a glance.

Formula & Theory — Quantity Converter

pieces = value × factor(from)
result = pieces / factor(to)
UnitPieces
pair2
dozen12
score20
gross144
great gross1728
ream500

The Quantity Converter converts the input to pieces using the source unit’s factor and then to the target unit by dividing by the target’s factor.

Assumptions and Limits

These quantity units are defined by tradition and standards; the Quantity Converter uses the most widely accepted integer values.

Use Cases for Quantity Converter

  • Retail and wholesale — Convert dozens of eggs to single pieces for inventory.
  • Printing and paper — Move between reams and individual sheets.
  • Education — Demonstrate units of counting from history class.
  • Procurement — Compare quotes given in different counting units.

The Quantity Converter is a tiny but handy helper for any counted-item workflow.

Frequently asked questions about Quantity Converter

How accurate is the Quantity Converter?

The Quantity Converter uses exact integer counts (1 dozen = 12, 1 score = 20, 1 gross = 144, 1 ream = 500). Results are mathematically exact.

When should I use a Quantity Converter?

Use the Quantity Converter when a product is sold by dozen, pair, score or other counting units and you need to convert quickly.

Can I convert between any two units?

Yes. The Quantity Converter routes through the base unit 'piece' so any two units are supported.

Is my data stored?

No. All calculations happen in your browser; nothing is sent to a server.