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Philippine peso to Australian dollars, 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.

THE RULE
divide by 43

Pesos to Australian dollars. Accurate to within 0.8% at today's rate, which means it reads about 0.8% cheaper than the real price — round up, not down.

1 AUD = 42.64 PHP · rate as of 2026-08-04

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.

Philippine peso Rule of thumbActual
₱20 A$0.465 A$0.469
₱50 A$1.16 A$1.17
₱100 A$2.33 A$2.35
₱200 A$4.65 A$4.69
₱500 A$11.63 A$11.73
₱1,000 A$23.26 A$23.45
₱2,000 A$46.51 A$46.9
₱5,000 A$116.3 A$117.3
₱10,000 A$232.6 A$234.5

Going the other way

Useful at the ATM, where you choose an amount in Australian dollars and want to know what lands in your hand.

Australian dollars Philippine peso
A$1₱42.64
A$5₱213.2
A$10₱426.4
A$20₱852.8
A$50₱2,132
A$100₱4,264

What catches people out in the Philippines

Small vendors and jeepney fares run on coins and small notes, so the useful mental range is 20 to 500 rather than the thousands.

When this rule stops working

Rules of thumb rot quietly. This one holds while the rate stays roughly between 42.5 and 43.5 PHP to the Australian dollar. 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 AUD; PHP and 150+ other currencies unlock for $4.99, once.

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