CPI Inflation Calculator — United Kingdom 2026/27
See what your money is really worth over time.
Adjust UK pound amounts for CPI inflation across years and compare real purchasing power, wage drift, and the cash amount needed to keep pace.
United Kingdom Inflation Notes
UK CPI comparisons are most useful when you want to see how far wages, savings, or household costs have drifted relative to inflation over time.
This version is tuned to UK purchasing-power analysis, where CPI is often compared with wages, rent pressure, and cash savings rates.
UK-specific treatment for cpi inflation: figures are framed in pounds, with British household or business wording and the assumptions commonly seen in PAYE, HMRC, mortgage, pension, and consumer-credit contexts.
Watch for UK markers in the page copy and inputs: HMRC, PAYE, National Insurance, pension contributions, stamp duty land tax, miles, APR, part-exchange, council tax, VAT, and GBP-based totals.
The result should be read as a United Kingdom estimate, so compare it with UK provider quotes, HMRC or GOV.UK guidance, lender affordability rules, devolved-nation differences, or regulated advice where needed.
Estimates only. 2026/27 HMRC rates.
Select the question that matches your situation.
The CPI (Consumer Price Index) measures the average change in prices paid by UK households over time. This calculator uses ONS CPI data to adjust a pound amount between any two years, showing the real purchasing power difference.
“Nominal” is the face value of money. “Real” is adjusted for inflation. A £60,000 salary in 2015 and a £60,000 salary in 2026 are nominally the same but very different in real terms — the 2026 salary buys 35% less.
The ONS collects prices for a “basket” of goods and services representing typical household spending: food, transport, restaurants and hotels, recreation, energy, and more. The index is published monthly. The basket is reviewed each year to reflect changing spending patterns.
A small positive inflation rate (the Bank of England's 2% target) is considered optimal: it encourages spending and investment (rather than hoarding), gives the Bank room to cut rates in a recession, and prevents the more damaging spiral of deflation.
UK CPI has not been stable over the past 15 years. The energy-driven surge to a peak of 11.1% in October 2022 significantly eroded real purchasing power for all Britons.
Average CPI of approximately 2.2%/yr during this decade — close to the Bank of England's 2% target. Housing and energy rose faster than CPI, but many other goods (electronics, clothing) fell in price.
COVID caused unusual CPI movements: childcare and education went to zero briefly, fuel fell sharply in 2020, then supply chain disruptions and stimulus began pushing prices up in 2021.
CPI peaked at 11.1% in October 2022 — driven by energy, food, and rents. The Bank of England raised Bank Rate from 0.10% to 5.25% across 14 rises. CPI moderated to approximately 2.5–3% by 2025.
Any savings or investment earning less than the CPI rate is losing real value. Beating inflation is the minimum bar for any savings vehicle.
If inflation is 3.5%, you need to earn at least 3.5% on savings just to maintain purchasing power. After tax, a 5% savings account at the 40% higher rate pays 3.0% net — below 3.5% inflation, so you are still losing real value.
UK equities have returned approximately 9–10%/yr nominally over 30 years, or 6–7% real. Residential property: similar. Cash: approximately 2–3% real over most periods. Bonds: variable.
Workplace and personal pension returns are reported in nominal terms. A balanced fund returning 7%/yr at 3% inflation is earning approximately 4% in real terms. Check your fund’s real return, not just the headline nominal figure.
Real wage growth (wages growing faster than CPI) increases living standards. When wages grow slower than CPI, real wages fall — even if the nominal salary number goes up.
With CPI averaging around 9% in 2022 and average pay growth around 6%, real wages fell approximately 3% — one of the sharpest real wage falls in decades. Workers on fixed salaries or pay deals of 2–3% were hit hardest.
On the Low Pay Commission's advice, the National Living Wage rose 9.7% in 2023, 9.8% in 2024, and 6.7% in 2025 (to £12.21/hour) — specifically to offset inflation. Pay-deal negotiations during this period commonly targeted CPI or higher.
Use this calculator in your next salary review: show your employer the CPI-adjusted equivalent of your 2019 or 2020 salary. Any raise below cumulative CPI is a real pay cut, regardless of the nominal percentage increase.
Methodology — The ONS CPI data, adjustment formula, and data sources
Formula
Inflation-adjusted amount = Original amount × (CPI in target year ÷ CPI in base year). For example, £1,000 in 2010 (CPI 95.8) adjusted to 2024 (CPI 141.5) = £1,000 × 141.5/95.8 = £1,477.
Data source
CPI data in this calculator is based on the Office for National Statistics (ONS) Consumer Prices Index (CPI) — the headline all-items measure for the whole of the United Kingdom. Data is updated to 2026. For the latest monthly release, visit ons.gov.uk.
Limitations
The all-items CPI is a national average. Your personal inflation rate depends on your specific spending mix. Households facing high rents and energy bills in London and the South East experienced far higher personal inflation in 2022–23 than the headline figure. The CPI does not capture all costs of living equally.
CPI index values and annual rates 2010–2026
| Year | CPI index |
|---|---|
| 2010 | 95.8 |
| 2012 | 101.0 |
| 2014 | 106.0 |
| 2016 | 109.0 |
| 2018 | 113.3 |
| 2020 | 116.2 |
| 2021 | 119.7 (+3.0%) |
| 2022 | 128.1 (+7.0% avg) |
| 2023 | 136.8 (+6.8%) |
| 2024 | 141.5 (+3.4%) |
Indexed UK CPI series (2015 ≈ 107.5) used in this calculator. Annual percentages are calendar-year averages; monthly CPI peaked at 11.1% in October 2022.
How inflation erodes savings and what return you need to maintain real value
The inflation break-even rate
To maintain the real value of savings, your after-tax return must exceed the inflation rate. At 3.5% inflation and a 40% marginal tax rate, you need a gross return of approximately 5.8% to break even in real terms. Most term deposits in 2023–24 at 4.5–5.5% were approximately at this break-even level.
Rule of 72
Divide 72 by the inflation rate to estimate how many years it takes for prices to double. At 3.5% inflation, prices double approximately every 20.6 years. At 7% (2022 peak), prices would double every 10.3 years.
How to use CPI data to calculate real wage changes and negotiate effectively
Calculating your real wage change
Enter your salary from a previous year as the “amount,” set the from year to when you last had a meaningful raise, and the to year to the current year. The adjusted amount shows what your salary needs to be today to maintain the same real purchasing power. If your current salary is below this figure, you have had a real pay cut.
Using CPI in salary negotiations
Present the CPI-adjusted figure to your employer alongside your current salary. Frame it as maintaining purchasing power rather than asking for a “raise.” Over 2022–2024, most UK workers on fixed salaries or below-inflation pay deals lost 5–10% of real purchasing power.
❓ Frequently askedFrequently asked questions
What is the United Kingdom's current CPI inflation rate?
UK CPI inflation was 2.8% in the 12 months to May 2026, down from a peak of 11.1% in October 2022. The Bank of England has a 2% CPI target over the medium term. Check the latest monthly CPI release from the ONS for current figures.
What does the CPI basket include?
The ONS CPI basket tracks prices for a representative mix of goods and services bought by UK households, grouped into 12 divisions. The larger weights fall on transport, recreation and culture, restaurants and hotels, food and non-alcoholic drinks, and housing costs such as energy and rents (note that CPI, unlike CPIH, excludes owner-occupier mortgage and housing costs). The basket is reviewed every year to reflect changing spending patterns.
How does the Bank of England use CPI?
The Bank of England sets Bank Rate primarily to keep CPI inflation at its 2% target over the medium term. When CPI rises well above target, the Bank typically raises Bank Rate to slow economic activity and reduce inflation; when it falls below target, it may cut rates to stimulate spending. The 2022–23 rate-rise cycle (from 0.10% to 5.25%) was a direct response to CPI peaking at 11.1%.
Why doesn't CPI reflect my cost of living?
The CPI is a national average across all spending categories. Your personal inflation rate depends on your specific spending mix. If you spend a larger share on rent and energy, or live in London or the South East (where housing costs diverged from the national average), your personal inflation rate may be significantly higher than the headline CPI. The ONS publishes Household Costs Indices (HCIs) for different household types, which can be more accurate for specific situations.
Where these figures come from
Savings and interest figures on this page are drawn from the Bank of England (Bank Rate and published deposit averages), FCA (the deposit-taker regulator), and MoneyHelper (consumer guidance).
- Bank of England Bank Rate — Bank of England — Bank Rate.
- Deposit interest-rate data — Bank of England — Retail Deposit and Investment Rates (F4).
- Financial Claims Scheme (deposit guarantee up to £250k) — FCA — Financial Claims Scheme.
- Compound interest & savings strategy — MoneyHelper — Saving.
- UK inflation context — ONS — Consumer Prices Index.
Last checked: July 2026. Rates and thresholds are reviewed against the source of record each November, when annual adjustments for the following tax year are published.