How much is $10 in 1999 worth today?

$10 in 1999 is worth $20.11 in August 2026 dollars, according to the U.S. Consumer Price Index.

How much would I need today to match $10 in 1999?

You would need $20.11 to buy what $10 bought in 1999. That is 2.01 times as much.

Kept as cash, $10 from 1999 buys only what $4.97 of 1999 money bought. It has lost 50% of its buying power.

Prices rose 2.2% in 1999. Since then the average has been 2.61% a year.

$10 in 1999 has the same buying power as

$20.11 in August 2026

That is 101% more, an average inflation rate of 2.61% a year over 27 years.

Put the other way, $10 today buys what $4.97 bought in 1999. Cash kept under the mattress since 1999 has lost 50% of its value.

$10 from 1999 in each later year's dollars

Not everything rose at the same pace. What $10 spent on each of these in 1999 costs today:

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

$10.00 in 1999 has the same buying power as

$20.11 in August 2026

Prices rose 101.1% in total, an average of 2.61% a year.

How much is $10 in 1999 worth today?: $10 in 1999 is worth $20.11 in August 2026 dollars, according to the U.S. Consumer Price Index.
How much would I need today to match $10 in 1999?: You would need $20.11 to buy what $10 bought in 1999. That is 2.01 times as much.
How much buying power has $10 lost since 1999?: Kept as cash, $10 from 1999 buys only what $4.97 of 1999 money bought. It has lost 50% of its buying power.
What was inflation in 1999?: Prices rose 2.2% in 1999. Since then the average has been 2.61% a year.