$100 in 2018 is worth $133.40 in August 2026 dollars. Prices are 33.4% higher than they were in 2018, an average inflation rate of 3.61% a year over roughly 8 years, according to the Bureau of Labor Statistics consumer price index.
Inflation in 2018
The average CPI-U in 2018 was 251.107, up from 245.120 in 2017 — an annual inflation rate of 2.4%.
That rate was higher than in 52 of the 112 years from 1914 to 2025, and below the long-run average of 3.16% a year.
Value of $100 from 2018 over time
2018 dollars in today’s dollars
| 2018 dollars | August 2026 dollars |
|---|---|
| $1 | $1.33 |
| $5 | $6.67 |
| $10 | $13.34 |
| $20 | $26.68 |
| $50 | $66.70 |
| $100 | $133.40 |
| $500 | $667.01 |
| $1,000 | $1,334.01 |
| $5,000 | $6,670.06 |
| $10,000 | $13,340.13 |
| $50,000 | $66,700.65 |
| $100,000 | $133,401.30 |
Buying power of $100 from 2018, year by year
| Year | Avg CPI-U | Inflation that year | Equivalent of $100 from 2018 |
|---|---|---|---|
| 2018 | 251.107 | 2.4% | $100.00 |
| 2019 | 255.657 | 1.8% | $101.81 |
| 2020 | 258.811 | 1.2% | $103.07 |
| 2021 | 270.970 | 4.7% | $107.91 |
| 2022 | 292.655 | 8.0% | $116.55 |
| 2023 | 304.702 | 4.1% | $121.34 |
| 2024 | 313.689 | 2.9% | $124.92 |
| 2025 | 321.943 | 2.6% | $128.21 |
| August 2026 | 334.980 | — | $133.40 |
How this is calculated
Value today = amount × (latest CPI-U ÷ 2018 average CPI-U). For $100: 100 × (334.980 ÷ 251.107) = $133.40. The average annual rate is the compound rate that turns 2018 prices into today’s over the elapsed time, measured from mid-2018 because an annual average describes the middle of the year. CPI-U tracks a broad basket of urban consumer spending; the prices of specific items such as housing, tuition or food have moved by different amounts.
Reverse: $100.00 today had the same buying power as $74.96 in 2018.
Other years
2008 dollars today · 2013 dollars today · 2016 dollars today · 2017 dollars today · 2019 dollars today · 2020 dollars today · 2023 dollars today · Inflation calculator (any two years)
