How much is $100 in 1970 worth today?

$100 in 1970 is worth $863.35 in August 2026 dollars, according to the U.S. Consumer Price Index.

How much would I need today to match $100 in 1970?

You would need $863.35 to buy what $100 bought in 1970. That is 8.63 times as much.

Kept as cash, $100 from 1970 buys only what $11.58 of 1970 money bought. It has lost 88% of its buying power.

Prices rose 5.7% in 1970. Since then the average has been 3.92% a year.

$100 in 1970 has the same buying power as

$863.35 in August 2026

That is 763% more, an average inflation rate of 3.92% a year over 56 years.

Put the other way, $100 today buys what $11.58 bought in 1970. Cash kept under the mattress since 1970 has lost 88% of its value.

$100 from 1970 in each later year's dollars

Not everything rose at the same pace. What $100 spent on each of these in 1970 costs today:

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

$100.00 in 1970 has the same buying power as

$863.35 in August 2026

Prices rose 763.4% in total, an average of 3.92% a year.

How much is $100 in 1970 worth today?: $100 in 1970 is worth $863.35 in August 2026 dollars, according to the U.S. Consumer Price Index.
How much would I need today to match $100 in 1970?: You would need $863.35 to buy what $100 bought in 1970. That is 8.63 times as much.
How much buying power has $100 lost since 1970?: Kept as cash, $100 from 1970 buys only what $11.58 of 1970 money bought. It has lost 88% of its buying power.
What was inflation in 1970?: Prices rose 5.7% in 1970. Since then the average has been 3.92% a year.