Inflation Calculator UK
See what money is worth after inflation using a custom CPI rate. Defaults can be benchmarked against recent ONS CPI releases.
How this inflation calculator uk works
See what money is worth after inflation using a custom CPI rate. Defaults can be benchmarked against recent ONS CPI releases.
Key assumptions
- The ONS reported UK CPI annual inflation of 3.3% in March 2026.
FAQs
What CPI figure should I use?
You can use the latest ONS CPI reading or your own long-term assumption.
Inflation calculator UK guide
An inflation calculator helps users understand how prices and purchasing power change over time. It is useful for budgeting, retirement planning, business forecasting and comparing historical spending with present-day costs.
Because inflation affects nearly every money decision, this page can attract backlinks from savings guides, salary articles, pension planning content and cost-of-living resources.
How to use this page
Enter an amount, inflation rate and number of years to estimate what the same spending power might look like in the future. The calculator also shows how much real value an amount could lose if inflation persists.
Official UK reference
The Office for National Statistics publishes CPI data and inflation bulletins: ONS CPI bulletin.