Inflation Record£100 in 2021 → 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
£127.31
+27.3% cumulative inflation · 2021–2026
Your £100 in 2021 would have the purchasing power of £127.31 in United Kingdom today.
What this means
- Purchasing power: £100 in 2021 had the same average buying power as £127.31 in 2026.
- Price level change: the overall consumer price level rose by 27.3% across this 5-year span; the purchasing power of a pound changed by -21.5%.
- 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 2021 | Worth in 2026 |
|---|---|
| £1 | £1.27 |
| £5 | £6.37 |
| £10 | £12.73 |
| £20 | £25.46 |
| £50 | £63.65 |
| £100 | £127.31 |
| £500 | £636.54 |
| £1,000 | £1,273.08 |
| £10,000 | £12,730.76 |
| £100,000 | £127,307.59 |
Key facts about 2021
- Consumer prices rose 2.6% in 2021 — the 15th-largest annual increase in the 1988–2026 record.
- Measured by the older RPI instead of CPI, £100 in 2021 would equal £136.07 in 2026 — the two indexes have drifted apart, which is why this site never blends them.
- Since 2021, the overall price level has multiplied about 1.3× — £1.00 in 2021 buys what £1.27 buys in 2026.
£100 in 2021, decade by decade
| Year | Worth | Cumulative price change |
|---|---|---|
| 2026 | £127.31 | +27.3% |
Monthly CPI in 2021
| Period | Index | Change vs same period, prior year |
|---|---|---|
| January | 109.0 | 0.7% |
| February | 109.1 | 0.5% |
| March | 109.4 | 0.7% |
| April | 110.1 | 1.5% |
| May | 110.8 | 2.1% |
| June | 111.3 | 2.5% |
| July | 111.3 | 2.0% |
| August | 112.1 | 3.2% |
| September | 112.4 | 3.0% |
| October | 113.6 | 4.1% |
| November | 114.5 | 5.1% |
| December | 115.1 | 5.4% |
Annual average for 2021: 111.558
Verify this calculation
Series: CPI All items (D7BT), MM23 dataset; base 2015=100; not seasonally adjusted.
Index (2021 annual average): 111.558 · Index (2026 annual average): 142.022 · Ratio: 1.2731
Formula: amount × (indexend / indexstart). Formula v1.0 — annual-average CPI, NSA (per-country basis on each methodology page). Source: Office for National Statistics.