Question: what would 1 dollar in 1920 be worth today?
Answer: In other words, $1 in 1920 is equivalent in purchasing power to about $12.18 in 2020, a difference of $11.18 over 100 years. The 1920 inflation rate was 9.80%. The current year-over-year inflation rate (2019 to 2020) is now 2.25% 1. If this number holds, $1 today will be equivalent in buying power to $1.02 next year.