Inflation Calculator: value of money since 1913 (US and UK)

See what money from any year is worth today, or what today's money was worth in the past, using official consumer price index data for the US (since 1913) and the UK (since 1988).

Annual average CPI; $100.00 in 2000 money
Year	CPI	Inflation	Value
2000	172.2	3.4%	$100.00
2001	177.1	2.8%	$102.85
2002	179.9	1.6%	$104.47
2003	184.0	2.3%	$106.85
2004	188.9	2.7%	$109.70
2005	195.3	3.4%	$113.41
2006	201.6	3.2%	$117.07
2007	207.342	2.8%	$120.41
2008	215.303	3.8%	$125.03
2009	214.537	-0.4%	$124.59
2010	218.056	1.6%	$126.63
2011	224.939	3.2%	$130.63
2012	229.594	2.1%	$133.33
2013	232.957	1.5%	$135.28
2014	236.736	1.6%	$137.48
2015	237.017	0.1%	$137.64
2016	240.007	1.3%	$139.38
2017	245.120	2.1%	$142.35
2018	251.107	2.4%	$145.82
2019	255.657	1.8%	$148.47
2020	258.811	1.2%	$150.30
2021	270.970	4.7%	$157.36
2022	292.655	8.0%	$169.95
2023	304.702	4.1%	$176.95
2024	313.689	2.9%	$182.17
2025	321.943	2.6%	$186.96

How to use the inflation calculator

Choose the US or the UK.
Enter an amount and the year it's from, then the year you want it in: a past year or the latest month.
Read the value with inflation, the total price change and the average yearly rate. Open Year by year to see each year's CPI and inflation.

Formula

Value in year B = amount × CPI(B) ÷ CPI(A)

Average inflation = (CPI(B) ÷ CPI(A))^{1 ÷ years} − 1

Annual averages stand for the middle of each year, and the latest month for the middle of that month, so the years are counted between those points.

Worked example: $100 from 2000

CPI-U: 172.2 in 2000 and 321.943 in 2025.
$100 × 321.943 ÷ 172.2 = $186.96. Prices rose 86.96%.
Over 25 years: 1.8696^1/25 − 1 = 2.53% a year.
From the 2025 average to August 2026, prices rose another 4.05%, so the same $100 from 2000 is about $194.53 now.
Going back works too: $100 in 2025 had the buying power of $40.60 in 1990.
UK: £100 in 2000 is £190.37 in 2025 (CPI 72.7 to 138.4).

Tips

To check whether an investment beat inflation, compare its yearly return from the ROI calculator with the average inflation here.
Planning ahead? Raise a savings target for future inflation before using the savings goal calculator or the retirement calculator.
Pay rises below inflation are a real-terms cut: compare with the salary hike calculator.

Data: US Bureau of Labor Statistics, CPI-U (all urban consumers, US city average, all items), 1982–84 = 100, annual averages 1913–2025 and August 2026; Office for National Statistics, Consumer Prices Index (CPI, all items), 2015 = 100, annual averages 1988–2025 and August 2026. Read on 2 October 2026; we add each new year when it's published.

Frequently asked questions

How is inflation calculated?

By comparing the consumer price index (CPI) in two years: value then × CPI(later year) ÷ CPI(earlier year). The US CPI-U averaged 172.2 in 2000 and 321.943 in 2025, so $100 in 2000 buys what $186.96 did in 2025.

What is $1 from 1913 worth today?

About $32.52 in 2025 dollars: the CPI-U rose from 9.9 in 1913 to 321.943 in 2025. That's 3.16% a year on average over 112 years.

How much have prices gone up since 2020?

In the US, by 24.4% from the 2020 average to the 2025 average, 4.46% a year. The biggest jump was 8.0% in 2022. In the UK, CPI rose 9.1% in 2022 (annual averages).

Which inflation figure does this use?

For the US, the BLS Consumer Price Index for All Urban Consumers (CPI-U), US city average, all items: the same series the BLS's own inflation calculator uses. For the UK, the ONS Consumer Prices Index (CPI), the Bank of England's target measure. We use annual averages for whole years, and the latest monthly figure (August 2026) for today.

Why is my own inflation different?

The CPI tracks the prices of a typical basket of goods and services. If you spend more than average on things that rose faster, such as rent, energy or food in some years, your personal inflation is higher, and lower if you spend more on things that rose less.