$100 in 2018 is worth $107.91 in 2021

1.08× price rise

Average US inflation: 2.57% a year over 3 years. Prices did not double in this span. Highest year: 2021 (4.7%). Lowest: 2020 (1.3%).

Converter

2018	in 2021	2021 amount in 2018 money
$1	$1.08	$0.93
$10	$10.79	$9.27
$100	$107.91	$92.67
$1,000	$1,079.15	$926.66
$10,000	$10,791.48	$9,266.57
$100,000	$107,914.76	$92,665.73

Year by year (value of $100 from 2018)

Year	Value	Inflation
2018	$100.00
2019	$101.81	1.8%
2020	$103.09	1.3%
2021	$107.91	4.7%

2018–2020 · 2018–2022 · All years

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How much is $100 from 2018 worth in 2021?

$100 in 2018 had about the same buying power as $107.91 in 2021, based on US consumer price index data.

What was the average inflation rate in US from 2018 to 2021?

About 2.57% per year, compounding to a 7.9% total rise in prices over 3 years.

Which year between 2018 and 2021 had the highest inflation?

2021 saw the largest annual rise in the index (4.7%); the lowest was 2020 (1.3%).

Historical statistics for education only. Not investment advice. US CPI: U.S. Bureau of Labor Statistics CPI-U (public domain), annual averages; 2026 = Sep 2026 index. India CPI: World Bank WDI FP.CPI.TOTL (source IMF IFS), licensed CC BY 4.0. INR/USD: Federal Reserve Board H.10. Sources & method · Embed this calculator · BacktestCard