Question: what is a dollar in 1920 worth today?
Answer: In other words, $1 in 1920 is equivalent in purchasing power to about $12.89 in 2020, a difference of $11.89 over 100 years. The 1920 inflation rate was 15.61%. The current year-over-year inflation rate (2019 to 2020) is now 0.65% 1. If this number holds, $1 today will be equivalent in buying power to $1.01 next year.