Inflation Record$100 in 2005 → 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)
$177.97
+78.0% cumulative inflation · 2005–2026
Your $100 in 2005 would have the purchasing power of $177.97 in Australia today.
What this means
- Purchasing power: $100 in 2005 had the same average buying power as $177.97 in 2026.
- Price level change: the overall consumer price level rose by 78.0% across this 21-year span; the purchasing power of a dollar changed by -43.8%.
- 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 2005 | Worth in 2026 |
|---|---|
| $1 | $1.78 |
| $5 | $8.90 |
| $10 | $17.80 |
| $20 | $35.59 |
| $50 | $88.99 |
| $100 | $177.97 |
| $500 | $889.85 |
| $1,000 | $1,779.71 |
| $10,000 | $17,797.08 |
| $100,000 | $177,970.78 |
Key facts about 2005
- Consumer prices rose 2.7% in 2005 — the 50th-largest annual increase in the 1949–2026 record.
- 2005 is in the quarterly-CPI era: its annual average is the mean of the year's four quarterly indexes.
- In the decade after 2005, prices rose 29.8% in total.
$100 in 2005, decade by decade
| Year | Worth | Cumulative price change |
|---|---|---|
| 2015 | $129.77 | +29.8% |
| 2025 | $171.88 | +71.9% |
| 2026 | $177.97 | +78.0% |
Quarterly CPI in 2005
| Period | Index | Change vs same period, prior year |
|---|---|---|
| Q1 | 82.1 | 2.4% |
| Q2 | 82.6 | 2.5% |
| Q3 | 83.4 | 3.1% |
| Q4 | 83.8 | 2.8% |
Annual average for 2005: 82.975
Verify this calculation
Series: All groups CPI, weighted average of eight capital cities (6401.0); base 2011-12=100; not seasonally adjusted.
Index (2005 annual average): 82.975 · Index (2026 annual average): 147.671 · Ratio: 1.7797
Formula: amount × (indexend / indexstart). Formula v1.0 — annual-average CPI, NSA (per-country basis on each methodology page). Source: Australian Bureau of Statistics.