Inflation Record£100 in 2009 → Today (United Kingdom)
Official data verified · CPI (ONS) · Annual average · Not seasonally adjusted · Data through September 2026 (fetched 2026-11-02) · CPI All items (D7BT), MM23 dataset
£164.05
+64.0% cumulative inflation · 2009–2026
Your £100 in 2009 would have the purchasing power of £164.05 in United Kingdom today.
What this means
- Purchasing power: £100 in 2009 had the same average buying power as £164.05 in 2026.
- Price level change: the overall consumer price level rose by 64.0% across this 17-year span; the purchasing power of a pound changed by -39.0%.
- This measures the broad basket of consumer goods and services (CPI (ONS)). Individual expenses moved at different rates.
What this means in other amounts
| In 2009 | Worth in 2026 |
|---|---|
| £1 | £1.64 |
| £5 | £8.20 |
| £10 | £16.40 |
| £20 | £32.81 |
| £50 | £82.02 |
| £100 | £164.05 |
| £500 | £820.23 |
| £1,000 | £1,640.45 |
| £10,000 | £16,404.53 |
| £100,000 | £164,045.30 |
Key facts about 2009
- Consumer prices rose 2.2% in 2009 — the 23rd-largest annual increase in the 1988–2026 record.
- Measured by the older RPI instead of CPI, £100 in 2009 would equal £194.21 in 2026 — the two indexes have drifted apart, which is why this site never blends them.
- In the decade after 2009, prices rose 24.5% in total.
£100 in 2009, decade by decade
| Year | Worth | Cumulative price change |
|---|---|---|
| 2019 | £124.52 | +24.5% |
| 2026 | £164.05 | +64.0% |
Monthly CPI in 2009
| Period | Index | Change vs same period, prior year |
|---|---|---|
| January | 84.9 | 3.0% |
| February | 85.6 | 3.1% |
| March | 85.8 | 2.9% |
| April | 86.0 | 2.4% |
| May | 86.4 | 2.1% |
| June | 86.7 | 1.8% |
| July | 86.7 | 1.9% |
| August | 87.0 | 1.5% |
| September | 87.1 | 1.2% |
| October | 87.2 | 1.5% |
| November | 87.5 | 2.0% |
| December | 88.0 | 2.9% |
Annual average for 2009: 86.575
Verify this calculation
Series: CPI All items (D7BT), MM23 dataset; base 2015=100; not seasonally adjusted.
Index (2009 annual average): 86.575 · Index (2026 annual average): 142.022 · Ratio: 1.6405
Formula: amount × (indexend / indexstart). Formula v1.0 — annual-average CPI, NSA (per-country basis on each methodology page). Source: Office for National Statistics.