Tools for reading Britain's past
Make sense of Britain's old money and dates
Free, fast tools for anyone reading old records. Convert pounds, shillings and pence, see what a historical price would cost today, and untangle regnal years and Old Style dates.
Money tools
Old money to decimal converterTurn pounds, shillings and pence into today's decimal pounds and pence.Decimal to old money converterTurn decimal pounds and pence back into £sd.Pounds, shillings and pence calculatorAdd, subtract, multiply and divide amounts in old money.What is old money worth today?See what an old amount would buy in today's prices, back to 1800.
Quick convert: £sd to decimal
Date tools
Regnal year converterTurn dates like “3 June 9 Charles I” into calendar dates, and back again.Old Style to New Style date converterConvert pre-1752 English dates, including double dates like 1749/50.Julian to Gregorian calendar converterConvert any date between the Julian and Gregorian calendars.What day of the week was it?Find the weekday of any historical date, using the calendar in use at the time.
Guides
How pounds, shillings and pence workedA plain-English guide to £sd, how it was written and how to do sums in it.Old British coins and their valuesEvery pre-decimal coin from the farthing to the guinea, with nicknames and decimal values.
Who these tools are for
Family historians reading wills, inventories and parish registers. Students and teachers studying British history. Readers of classic novels who want to know what “a guinea a week” really meant. And anyone who has found a date like “1731/2” or “9 Charles I” and wondered what it means.
Everything works in your browser, on phones as well as computers, with no sign-up.