UK Inflation Calculator — Real Purchasing Power & Cash Erosion
Model how UK Consumer Prices Index (CPI) inflation reduces the real-terms spending power of uninvested cash over 1 to 35 years compared with the Bank of England's 2.0% annual target.
| Time Horizon (£10,000 Cash at 3.0% CPI) | Real Purchasing Power in Today's Money | Future Amount Needed to Match £10k |
|---|---|---|
| 5 Years | £8,626 (-13.7% purchasing power) | £11,593 |
| 10 Years | £7,441 (-25.6% purchasing power) | £13,439 |
| 20 Years | £5,537 (-44.6% purchasing power) | £18,061 |
| 25 Years | £4,776 (-52.2% purchasing power) | £20,938 |