UK Inflation Calculator: What Is My Money Worth?
Enter an amount and two dates to see how inflation changed what it can buy.
| Prices rose by | 63.6% |
|---|---|
| Average yearly inflation | 3% |
| CPI index in January 2010 | 87.8 |
| CPI index in August 2026 | 143.6 |
Source: ONS Consumer Prices Index (2015 = 100). The index runs from January 1988, and the latest month is August 2026. It measures the average change in prices, so it will not match any one item’s price.
How inflation is measured
Inflation is the rise in the general level of prices. The Office for National Statistics tracks it with the Consumer Prices Index (CPI), which prices a typical basket of goods and services every month. This calculator compares the CPI in the two months you pick.
Example: £100 in January 2010 is worth about £163.55 in August 2026, because prices rose by 64% in that time.
The latest inflation rate
CPI inflation was 3.1% in August 2026, meaning prices were that much higher than a year earlier. See our UK inflation rate page for the recent trend.
Why it matters
- Savings: if your savings rate is lower than inflation, your money buys less each year. See average savings rates.
- Pay: a pay rise below inflation is a real cut. Use the pay rise calculator.
- Old prices: see what money from past years is worth now.
Sources: ONS: CPI index 00, all items (D7BT). Figures last checked on 8 October 2026.
Frequently asked questions
What was £100 in 2010 worth today?
About £163.55 in August 2026, using the ONS Consumer Prices Index.
What is the UK inflation rate?
The latest CPI inflation rate is 3.1% (August 2026). It is the rise in prices over the previous 12 months.
Which inflation measure does the calculator use?
The ONS Consumer Prices Index (CPI), the official measure that the Bank of England targets at 2%.
Can I go back in time?
Yes. Choose a later date as the start and an earlier date as the end to see what today’s money would have been worth in the past.
More from UK Answers
Figures are for the 2026/27 tax year from official sources and are estimates for guidance only, not financial or legal advice. Printed from ukanswers.co.uk.