US CPI · 1921 to 2025
$100 in 1921 is worth $1,798.32 today
$100 in 1921 has the same purchasing power as $1,798.32 in 2025. That is a 1698.3% increase in prices, or an average inflation rate of 2.82% per year. Prices first doubled from their 1921 level in 1969.
Inflation in 1921
-10.5%
vs 1920
Total since 1921
1698%
17.9 → 321.9 CPI
Average per year
2.82%
104 years
1921 dollars in today's money
| 1921 amount | Value in 2025 |
|---|---|
| $1 | $17.98 |
| $10 | $179.83 |
| $20 | $359.66 |
| $50 | $899.16 |
| $100 | $1,798.32 |
| $500 | $8,991.62 |
| $1,000 | $17,983.24 |
| $5,000 | $89,916.20 |
| $10,000 | $179,832.40 |
| $50,000 | $899,162.01 |
| $100,000 | $1,798,324.02 |
How $100 from 1921 grew over time
The same $100 from 1921, measured in later years' dollars.
| Year | Equivalent of $100 | Change |
|---|---|---|
| 1926 | $98.88 | -1% |
| 1931 | $84.92 | -15% |
| 1941 | $82.12 | -18% |
| 1951 | $145.25 | 45% |
| 1971 | $226.26 | 126% |
| 2025 | $1,798.32 | 1698% |
Convert any amount
$100.00 in 1921 is worth
$1,798.32in 2025 dollars
Cumulative change
1698.3%
Average per year
2.82%
Nearby years
See the full US inflation calculator and year-by-year table.
Frequently asked questions
How much is $100 in 1921 worth today?
$100 in 1921 is worth about $1,798.32 in 2025. In other words, you would need $1,798.32 today to buy what $100 bought in 1921.
What was the inflation rate in 1921?
Consumer prices fell 10.5% in 1921 compared with 1920, based on CPI-U annual averages (20 → 17.9).
How much have prices gone up since 1921?
Prices are 1698.3% higher in 2025 than in 1921, an average inflation rate of 2.82% per year over 104 years. Today a dollar buys only what 6 cents bought in 1921.
Disclaimer: These are estimates based on published tax rates for a single employee with standard deductions and no other income. Your actual pay depends on your tax code, benefits, credits and local taxes. This site is for information only and is not financial, tax or legal advice. Check with your tax authority or a qualified professional before making decisions.