News bulletins usually quote the Australian dollar in US cents, but the RBA's trade-weighted index offers a broader yardstick, and on 14 October 2026 it stood at 65.0.

Ask most Australians what the dollar is worth and the answer will be expressed in US cents. On 14 October 2026, that figure was just above 70 US cents, with the RBA recording AUD/USD at 0.7002 at 4.00 pm. It is a convenient shorthand, but it captures only one relationship among many.

Australia trades with a wide range of countries, and its currency can rise against one while falling against another. To capture the bigger picture, the RBA publishes a Trade-weighted Index, or TWI. At the same 4.00 pm reading, the TWI was 65.0. Understanding what that number measures, and what it does not, helps explain why the RBA pays close attention to it.

What a trade-weighted index is

A trade-weighted index is a single number that summarises the value of a currency against a basket of other currencies. Each currency in the basket is given a weight that reflects its importance in the country's trade. A currency belonging to a large trading partner counts for more than one belonging to a minor partner.

Some general features are worth keeping in mind:

  • It is an index, not a price. A TWI reading of 65.0 does not mean the dollar buys 65 cents of anything. The number is meaningful mainly when compared with earlier readings.
  • It averages out bilateral moves. If the Australian dollar rises against some currencies and falls against others, the TWI shows the net effect, weighted by trade.
  • It is closer to how the economy experiences the currency. Because imports and exports involve many currencies, a trade-weighted measure better reflects the overall effect on prices and competitiveness than any single exchange rate.

The snapshot on 14 October

The following rates applied for the Australian dollar as at 4.00 pm on 14 October 2026:

  • Trade-weighted Index: 65.0
  • US dollar: 0.7002
  • Chinese renminbi: 4.6855
  • Japanese yen: 110.74
  • Euro: 0.6246

Each bilateral rate tells its own story about one relationship. The TWI pulls them, along with other currencies in the basket, into a single summary. That is why two commentators can draw different conclusions about whether the dollar is "strong" depending on which rate they look at.

What the September minutes said

The minutes of the Monetary Policy Board's 28–29 September meeting gave the trade-weighted view rather than the US dollar view. They recorded that the Australian dollar had depreciated a little in trade-weighted terms since the Board's previous meeting, but was around 5 per cent higher since the start of the year.

The minutes also referred to the real TWI, saying it was "somewhat above the range of estimates" of its long-run equilibrium. The distinction between nominal and real is important:

  • The nominal TWI, like the 65.0 reading, reflects market exchange rates.
  • The real TWI adjusts for differences in inflation between Australia and its trading partners, giving a sense of the currency's purchasing power and competitiveness.

When the real TWI sits above estimates of its long-run equilibrium, it suggests that, after accounting for relative prices, the Australian dollar is on the firm side compared with where models suggest it would settle over time. Those estimates come with a range, and the minutes' wording, "somewhat above", is measured rather than emphatic.

Why the TWI matters for monetary policy

The RBA cares about the exchange rate because it influences inflation and economic activity. A higher trade-weighted dollar generally lowers the local-currency cost of imports and makes exports more expensive for foreign buyers. For exporters, that can mean either charging more in foreign-currency terms or receiving fewer Australian dollars for each sale abroad, which can weigh on activity in trade-exposed industries.

Governor Michele Bullock made the link explicit at her 29 September media conference, after the Board raised the cash rate target by 25 basis points to 4.60 per cent. "And raising interest rates impacts import prices," she said. "And then according to our research, in fact, the most important channel is the exchange rate channel."

Because that channel works through the broad value of the currency, a trade-weighted measure is a natural reference point. A rise against the US dollar alone, for example, would have a more limited effect on overall import prices if the Australian dollar were falling against other major trading partners at the same time.

The TWI is also shaped by what other central banks do. The minutes noted that several central banks abroad had already raised interest rates, and that markets expected tightening in most major advanced economies over 2026–27. Exchange rates reflect relative conditions, so policy moves overseas can pull the TWI in either direction.

The next cash rate update is scheduled for 2.30 pm on 3 November 2026, and the RBA calendar lists a new Statement on Monetary Policy for November, which will set out the central bank's latest assessment of the outlook.

The measure has limits, too. The TWI is a summary, and summaries lose detail. A business that buys mainly from one country will care more about that bilateral rate than about the index. Households that travel or shop online from a particular region may notice a specific exchange rate more than the trade-weighted average. And as with any exchange rate, the TWI does not on its own determine prices; global costs, such as the significant rise in oil prices Bullock described, can outweigh currency movements.

Readers with exposure to currency movements, whether through business, travel or investments, may wish to seek advice from a licensed professional about their circumstances.

The bottom line

The TWI measures the Australian dollar against a trade-weighted basket of currencies rather than the US dollar alone, and it stood at 65.0 on 14 October 2026. The September minutes said the dollar was around 5 per cent higher in trade-weighted terms since the start of the year, and that the real TWI was somewhat above estimates of its long-run equilibrium. Because the RBA's research points to the exchange rate as the most important channel for monetary policy, the broad, trade-weighted measure is one of the more useful gauges for understanding how the currency feeds into prices.