Australian dollar to pounds, in your head
One rule, the error band that comes with it, and the point at which it stops being the right rule. Updated from the live rate feed.
Australian dollars to pounds. Accurate to within 4.0% at today's rate, which means it reads about 4.0% cheaper than the real price — round up, not down.
The ladder
The middle column is what the rule gives you standing in a market. The right column is the real number, so you can see exactly where the shortcut costs you.
| Australian dollar | Rule of thumb | Actual |
|---|---|---|
| A$0.5 | £0.25 | £0.26 |
| A$1 | £0.5 | £0.521 |
| A$2 | £1 | £1.04 |
| A$5 | £2.5 | £2.6 |
| A$10 | £5 | £5.21 |
| A$20 | £10 | £10.42 |
| A$50 | £25 | £26.04 |
| A$100 | £50 | £52.08 |
| A$200 | £100 | £104.2 |
Going the other way
Useful at the ATM, where you choose an amount in pounds and want to know what lands in your hand.
| Pounds | Australian dollar |
|---|---|
| £1 | A$1.92 |
| £5 | A$9.6 |
| £10 | A$19.2 |
| £20 | A$38.41 |
| £50 | A$96.01 |
| £100 | A$192 |
What catches people out in Australia
Australian prices include tax and, by convention, do not expect a tip — so the number on the menu is genuinely the number you pay.
When this rule stops working
Rules of thumb rot quietly. This one holds while the rate stays roughly between 1.9 and 2.11 AUD to the pound. Outside that band a different divisor becomes the better one to memorise. We regenerate this page from the live rate feed, so the date above tells you how fresh the number is — if you are reading this a long way after August 2026, check it before you rely on it.
Or skip the arithmetic entirely
RoamRate does this conversion with no signal, in one hand, on a number pad built for a thumb. Free for GBP; AUD and 150+ other currencies unlock for $4.99, once.
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