Old Money Converter
Convert pre-decimal UK pounds, shillings and pence to modern decimal pounds, and back again.
Frequently asked questions
Is this tool free?
Yes. Calchemy tools are free to use in your browser.
Is my data uploaded?
No. The tools are designed to run locally in your browser unless clearly stated otherwise.
What rate does this use?
The official 1971 UK decimalisation rate: 240 old pence (20 shillings of 12 pence each) equalled 100 new pence, and the pound itself kept the same value throughout.
Does this account for inflation?
No - this is a straight unit conversion between the old and new subdivisions of the pound, not an inflation-adjusted 'what would this be worth today' calculation.