How much is $100 in 2018 worth today?

$100 in 2018 is worth $133.40 in August 2026 dollars, according to the U.S. Consumer Price Index.

How much would I need today to match $100 in 2018?

You would need $133.40 to buy what $100 bought in 2018. That is 1.33 times as much.

Kept as cash, $100 from 2018 buys only what $74.96 of 2018 money bought. It has lost 25% of its buying power.

Prices rose 2.4% in 2018. Since then the average has been 3.61% a year.

$100 in 2018 has the same buying power as

$133.40 in August 2026

That is 33% more, an average inflation rate of 3.61% a year over 8 years.

Put the other way, $100 today buys what $74.96 bought in 2018. Cash kept under the mattress since 2018 has lost 25% of its value.

$100 from 2018 in each later year's dollars

Not everything rose at the same pace. What $100 spent on each of these in 2018 costs today:

Amount ($) From year From month To year To month

$100.00 in 2018 has the same buying power as

$133.40 in August 2026

Prices rose 33.4% in total, an average of 3.61% a year.

How much is $100 in 2018 worth today?: $100 in 2018 is worth $133.40 in August 2026 dollars, according to the U.S. Consumer Price Index.
How much would I need today to match $100 in 2018?: You would need $133.40 to buy what $100 bought in 2018. That is 1.33 times as much.
How much buying power has $100 lost since 2018?: Kept as cash, $100 from 2018 buys only what $74.96 of 2018 money bought. It has lost 25% of its buying power.
What was inflation in 2018?: Prices rose 2.4% in 2018. Since then the average has been 3.61% a year.