Inflation Record$100 in 1984 → Today
Official data verified · U.S. CPI-U · Annual average · NSA · Data through September 2026 (fetched 2026-11-02) · Series CUUR0000SA0
$319.82
+219.8% cumulative inflation · 1984–2026
Your $100 in 1984 would have the purchasing power of $319.82 today.
What this means
- Purchasing power: $100 in 1984 had the same average buying power as $319.82 in 2026.
- Price level change: the overall consumer price level rose by 219.8% across this 42-year span; the purchasing power of a dollar fell by 68.7%.
- This measures the broad basket of consumer goods and services (CPI-U). Individual expenses — housing, medical care, tuition — moved at different rates.
What this means in other amounts
| In 1984 | Worth in 2026 |
|---|---|
| $1 | $3.20 |
| $5 | $15.99 |
| $10 | $31.98 |
| $20 | $63.96 |
| $50 | $159.91 |
| $100 | $319.82 |
| $500 | $1,599.11 |
| $1,000 | $3,198.23 |
| $10,000 | $31,982.28 |
| $100,000 | $319,822.77 |
Key facts about 1984
- Consumer prices rose 4.3% in 1984 — the 29th-largest annual increase in the 1913–2026 record.
- Among the major categories tracked since 1984, Medical care rose the most: 397.6% cumulatively to 2025.
- A gallon of regular gasoline averaged $1.21 in 1984 — about $3.88 in 2026 dollars.
- A dozen large eggs averaged $1.00 in 1984 — about $3.21 in 2026 dollars.
$100 in 1984, decade by decade
| Year | Worth | Cumulative price change |
|---|---|---|
| 1994 | $142.68 | +42.7% |
| 2004 | $181.82 | +81.8% |
| 2014 | $227.89 | +127.9% |
| 2024 | $301.96 | +202.0% |
| 2026 | $319.82 | +219.8% |
Monthly CPI in 1984
| Month | CPI-U index | Change vs same month, prior year |
|---|---|---|
| January | 101.900 | 4.2% |
| February | 102.400 | 4.6% |
| March | 102.600 | 4.8% |
| April | 103.100 | 4.6% |
| May | 103.400 | 4.2% |
| June | 103.700 | 4.2% |
| July | 104.100 | 4.2% |
| August | 104.500 | 4.3% |
| September | 105.000 | 4.3% |
| October | 105.300 | 4.3% |
| November | 105.300 | 4.1% |
| December | 105.300 | 3.9% |
Annual average CPI-U for 1984: 103.883.
Verify this calculation
Series: CUUR0000SA0 (Consumer Price Index for All Urban Consumers, All Items, U.S. City Average; Not seasonally adjusted (NSA); base 1982-84=100).
Index (1984 annual average): 103.883 · Index (2026 annual average): 332.243 · Ratio: 3.1982
Formula: amount × (indexend / indexstart). Formula v1.0 — annual-average CPI, NSA (per-country basis on each methodology page). Source: BLS data finder.