UK · Free calculator
Inflation calculator
See how inflation erodes purchasing power — or what today’s money may cost in future.
Your figures
Rates updated 2026-04-06. Results update as you type.
At this rate, prices multiply by about 1.28× over the period.
- Equivalent future cost
- £1,280.08
- Purchasing power of today’s amount then
- £781.20
- Inflation factor
- 1.28
How this calculator works
Future cost grows by (1 + rate)^years; purchasing power is the inverse.
£1,000 over 10 years at 2.5%
What £1,000 today means after a decade of 2.5% inflation.
Assumptions & sources
- Constant annual inflation rate.
- No investment return modelled on this page.
Frequently asked questions
For planning, people often use a long-run assumption (for example 2–3%). You can enter any rate.
Estimates only
Handy Money Tools provides illustrative figures, not personalised financial or tax advice. Verify
important decisions with official sources or a qualified adviser.
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