£100 in 1812 is worth £9,991 today
What pounds from 1812 are worth in 2025 money, adjusted for inflation with the official price index from the UK Office for National Statistics.
1812 money in 2025 money
- Prices since
- +9891.2%
- Per year
- +2.19% compounded
- Multiplier
- ×99.912
| In 1812 | Worth in 2025 |
|---|---|
| £1 | £99.91 |
| £5 | £500 |
| £10 | £999 |
| £20 | £1,998 |
| £50 | £4,996 |
| £100 | £9,991 |
| £1,000 | £99,912 |
| £10,000 | £999,119 |
UK Office for National Statistics — Retail Prices Index: long run series, Jan 1974 = 100. Retrieved 2026-08-06. Open in the calculator to compare any two years.
Inflation in 1812
Prices in the UK rose 13.6% during 1812 — a higher rate than most years in this series, 15th highest of 225. Across the 1810s, prices fell an average of 0.4% a year, peaking at 13.8% in 1817.
| Year | Rate | Bar |
|---|---|---|
| 1810 | +2.9% | |
| 1811 | −2.8% | |
| 1812 | +13.6% | |
| 1813 | +2.5% | |
| 1814 | −12.9% | |
| 1815 | −10.6% | |
| 1816 | −8.7% | |
| 1817 | +13.8% | |
| 1818 | 0.0% | |
| 1819 | −2.3% |
How far the pound has fallen since 1812
A pound in 2025 buys about 1.0% of what one bought in 1812, a loss of 99.0% of its buying power. Prices had doubled from their 1812 level by 1949, 137 years later. Read the other way, here is what today's money would have been in 1812:
| In 2025 | Same as, in 1812 |
|---|---|
| £10 | £0.10 |
| £20 | £0.20 |
| £50 | £0.50 |
| £100 | £1.00 |
| £1,000 | £10.01 |
| £10,000 | £100 |
What these numbers can and cannot tell you
The figures compare the price index in 1812 with 2025: the cost of the same broad basket of goods and services, averaged across each year. That is the right measure for "what would this amount be in today's money" — a wage, a price, an inheritance. It is not a measure of what any particular thing cost: housing, education, and healthcare have mostly risen faster than the average, while electronics and clothing have risen far slower or fallen. And it says nothing about exchange rates, so it cannot turn 1812 pounds into another currency.
Common questions
How much is £100 from 1812 worth today?
£100 in 1812 is worth about £9,991 in 2025 money, adjusted with the official price index published by the UK Office for National Statistics. Prices have risen 9,891.2% over that span, an average of 2.19% a year compounded.
What was the inflation rate in 1812?
Prices in the UK rose 13.6% during 1812 — a higher rate than most years in this series, 15th highest of 225. That is the change in the annual average of the index from 1811 to 1812, which is the basis statistics agencies use for long-run comparison; a news headline quoting a twelve-month change at a particular point in 1812 may differ.
How much buying power has the pound lost since 1812?
About 99.0%. Put the other way round, £100 in 2025 would have bought what £1.00 bought in 1812. Prices had doubled from their 1812 level by 1949, 137 years later.
No other country here has price records going back to 1812.