Use this numismatic calculation to document a collection, metal content, historical denomination, minting error, grading cost, auction price, or market scenario with explicit measurements and prices.

Pounds (£)

Required number input.

Shillings (s)

Required number input.

Pence (d)

Required number input.

Convert predecimal pounds, shillings, and pence to total pence at 20 shillings per pound and 12 pence per shilling. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Total Pence (d)

The resulting total pence returned as a number.

• Coin value and attribution depend on authenticity, date, mint, variety, grade, surfaces, provenance, market liquidity, fees, metal assay, and current spot prices. Images and arithmetic cannot replace expert authentication or in-hand grading.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Retain weight, diameter, photographs, references, transaction fees, and price dates; verify valuable pieces with recognized catalogues and qualified independent experts.

• Farthing To Pound Converter

  Convert predecimal farthings to pounds: four farthings per penny and 240 pence per pound.

• Troy Pound Ounce Count

  Convert troy pounds to troy ounces; a troy pound has twelve troy ounces.

• Alloy Percentage Mass Share

  Find an alloy component's mass percentage from component and total masses.