Convert Singapore Dollar to Australian Dollar
SGD to AUD Exchange Rate Calculator


1 Singapore Dollar (SGD) = 1.0909 Australian Dollar (AUD) at the live mid-market rate. That means $100 SGD converts to roughly 109.09 AUD, and $1,000 SGD converts to about 1,090.90 AUD. The SGD/AUD rate refreshes every hour from Frankfurter, which sources data from the European Central Bank reference set. Enter any amount below to convert instantly — free, no sign-up.
90-day SGD/AUD context
Over the past 90 days, SGD/AUD has traded between 1.0841 and 1.1306. The current rate of 1.0909 sits roughly 15% through that range — near the lower end, meaning Australian Dollar has been stronger than typical against Singapore Dollar recently. Versus the rate 90 days ago, Singapore Dollar has weakened by 1.88% against Australian Dollar.
SGD/AUD Price History
Interactive SGD/AUD exchange rate chart with 7-day, 30-day, and 90-day views.

About Singapore Dollar (SGD)
The Singapore Dollar (SGD) is the official currency of Singapore, managed by the Monetary Authority of Singapore (MAS) under a unique exchange-rate-based monetary policy framework. Instead of setting interest rates, MAS steers SGD against an undisclosed trade-weighted basket (the S$NEER), making SGD one of the most carefully managed floats in the world.
- •MAS uses the S$NEER (Nominal Effective Exchange Rate) as its primary policy tool, not interest rates
- •Singapore is the world's third-largest forex trading hub
- •Singapore has run a current-account surplus every year since 1988
- •MAS announces policy twice a year (April and October)
- •The S$NEER basket composition is not published but is estimated to heavily weight USD, CNY, and MYR

About Australian Dollar (AUD)
The Australian Dollar (AUD) is the official currency of Australia and the fifth-most-traded currency in the world. Often called "the Aussie," it is the archetypal commodity currency — tightly linked to iron ore, coal, LNG exports, and Chinese industrial demand.
- •Fifth-most-traded currency, ~7% of daily forex volume
- •Australia is the world's largest iron ore exporter
- •Reserve Bank of Australia (RBA) targets 2–3% inflation over the medium term
- •AUD/USD is highly correlated with copper and iron ore futures
- •Australia issued the world's first full polymer banknote series in 1988
Frequently Asked Questions
When is SGD/AUD most liquid?
Liquidity is deepest during the Tokyo and Hong Kong sessions (00:00–08:00 UTC) when SGD markets are open. Spreads widen noticeably during the New York afternoon and Asian public holidays.
What is a typical daily range for SGD/AUD?
Daily ranges vary with volatility regimes. Majors like EUR/USD typically move 0.5–1.2% on quiet days and 2–3% on data-release days. Check the 30-day chart above for a sense of the current range.
What economic events move SGD/AUD the most?
The biggest scheduled catalysts are MAS semi-annual policy statements (April/October) and RBA monthly meetings (first Tuesday), Australian CPI, and Chinese PMIs. Geopolitical headlines and global risk sentiment also produce meaningful moves, especially when one currency is a safe-haven and the other is risk-sensitive.
Is it cheaper to convert SGD to AUD at a bank or online?
Online money-transfer services (Wise, Revolut, Remitly, InstaRem) typically offer rates much closer to the mid-market SGD/AUD than traditional banks. Always compare the total delivered amount, not just the advertised "fee" — many providers embed their margin in the exchange rate itself.
Does the SGD/AUD rate change on weekends?
The interbank forex market closes from Friday 21:00 UTC until Sunday 21:00 UTC, so mid-market SGD/AUD rates don't update during that window. Retail broker spreads often widen at Sunday open as Asian desks reopen, so the first few hours of the new week can carry wider execution costs.
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Rate history
- AUD/USD historyAUD/USD is the world's premier "commodity currency" pair, correlated with iron ore, copper, and global growth cycles
- USD/SGD historyUSD/SGD is unique among major-currency pairs — Singapore manages SGD against a trade-weighted basket of currencies (S$NEER), not against a single peg or a free float
Articles
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Background on Singapore Dollar, Australian Dollar, and the forces that move SGD/AUD.
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Exchange rates refresh hourly · Sourced from institutional-grade data providers