How much is $100 in 1979 worth today?

$100 in 1979 is worth $461.40 in August 2026 dollars, according to the U.S. Consumer Price Index.

How much would I need today to match $100 in 1979?

You would need $461.40 to buy what $100 bought in 1979. That is 4.61 times as much.

Kept as cash, $100 from 1979 buys only what $21.67 of 1979 money bought. It has lost 78% of its buying power.

Prices rose 11.3% in 1979. Since then the average has been 3.30% a year.

$100 in 1979 has the same buying power as

$461.40 in August 2026

That is 361% more, an average inflation rate of 3.30% a year over 47 years.

Put the other way, $100 today buys what $21.67 bought in 1979. Cash kept under the mattress since 1979 has lost 78% of its value.

$100 from 1979 in each later year's dollars

Not everything rose at the same pace. What $100 spent on each of these in 1979 costs today:

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

$100.00 in 1979 has the same buying power as

$461.40 in August 2026

Prices rose 361.4% in total, an average of 3.30% a year.

How much is $100 in 1979 worth today?: $100 in 1979 is worth $461.40 in August 2026 dollars, according to the U.S. Consumer Price Index.
How much would I need today to match $100 in 1979?: You would need $461.40 to buy what $100 bought in 1979. That is 4.61 times as much.
How much buying power has $100 lost since 1979?: Kept as cash, $100 from 1979 buys only what $21.67 of 1979 money bought. It has lost 78% of its buying power.
What was inflation in 1979?: Prices rose 11.3% in 1979. Since then the average has been 3.30% a year.