How much is $10 in 1940 worth today?

$10 in 1940 is worth $239.27 in August 2026 dollars, according to the U.S. Consumer Price Index.

How much would I need today to match $10 in 1940?

You would need $239.27 to buy what $10 bought in 1940. That is 23.93 times as much.

Kept as cash, $10 from 1940 buys only what $0.42 of 1940 money bought. It has lost 96% of its buying power.

Prices rose 0.7% in 1940. Since then the average has been 3.76% a year.

$10 in 1940 has the same buying power as

$239.27 in August 2026

That is 2,293% more, an average inflation rate of 3.76% a year over 86 years.

Put the other way, $10 today buys what $0.42 bought in 1940. Cash kept under the mattress since 1940 has lost 96% of its value.

$10 from 1940 in each later year's dollars

Not everything rose at the same pace. What $10 spent on each of these in 1940 costs today:

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

$10.00 in 1940 has the same buying power as

$239.27 in August 2026

Prices rose 2,292.7% in total, an average of 3.76% a year.

How much is $10 in 1940 worth today?: $10 in 1940 is worth $239.27 in August 2026 dollars, according to the U.S. Consumer Price Index.
How much would I need today to match $10 in 1940?: You would need $239.27 to buy what $10 bought in 1940. That is 23.93 times as much.
How much buying power has $10 lost since 1940?: Kept as cash, $10 from 1940 buys only what $0.42 of 1940 money bought. It has lost 96% of its buying power.
What was inflation in 1940?: Prices rose 0.7% in 1940. Since then the average has been 3.76% a year.