Inflation Record$100 in 1984 → Today (Australia)
Official data verified · CPI (ABS) · Annual average · Not seasonally adjusted · Data through September 2026 (fetched 2026-11-02) · All groups CPI, weighted average of eight capital cities (6401.0)
$401.83
+301.8% cumulative inflation · 1984–2026
Your $100 in 1984 would have the purchasing power of $401.83 in Australia today.
What this means
- Purchasing power: $100 in 1984 had the same average buying power as $401.83 in 2026.
- Price level change: the overall consumer price level rose by 301.8% across this 42-year span; the purchasing power of a dollar changed by -75.1%.
- This measures the broad basket of consumer goods and services (CPI (ABS)). Individual expenses moved at different rates.
What this means in other amounts
| In 1984 | Worth in 2026 |
|---|---|
| $1 | $4.02 |
| $5 | $20.09 |
| $10 | $40.18 |
| $20 | $80.37 |
| $50 | $200.91 |
| $100 | $401.83 |
| $500 | $2,009.13 |
| $1,000 | $4,018.27 |
| $10,000 | $40,182.66 |
| $100,000 | $401,826.55 |
Key facts about 1984
- Consumer prices rose 4.0% in 1984 — the 31st-largest annual increase in the 1949–2026 record.
- 1984 is in the quarterly-CPI era: its annual average is the mean of the year's four quarterly indexes.
- In the decade after 1984, prices rose 69.0% in total.
$100 in 1984, decade by decade
| Year | Worth | Cumulative price change |
|---|---|---|
| 1994 | $169.05 | +69.0% |
| 2004 | $219.86 | +119.9% |
| 2014 | $288.64 | +188.6% |
| 2024 | $377.35 | +277.3% |
| 2026 | $401.83 | +301.8% |
Quarterly CPI in 1984
| Period | Index | Change vs same period, prior year |
|---|---|---|
| Q1 | 36.3 | 5.8% |
| Q2 | 36.4 | 4.0% |
| Q3 | 36.9 | 3.7% |
| Q4 | 37.4 | 2.5% |
Annual average for 1984: 36.750
Verify this calculation
Series: All groups CPI, weighted average of eight capital cities (6401.0); base 2011-12=100; not seasonally adjusted.
Index (1984 annual average): 36.750 · Index (2026 annual average): 147.671 · Ratio: 4.0183
Formula: amount × (indexend / indexstart). Formula v1.0 — annual-average CPI, NSA (per-country basis on each methodology page). Source: Australian Bureau of Statistics.