Argentine peso to Swiss francs, 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.
Pesos to Swiss francs. Accurate to within 2.4% at today's rate, which means it reads about 2.4% dearer than the real price.
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.
| Argentine peso | Rule of thumb | Actual |
|---|---|---|
| $500 | CHF 0.278 | CHF 0.271 |
| $1,000 | CHF 0.556 | CHF 0.542 |
| $2,000 | CHF 1.11 | CHF 1.08 |
| $5,000 | CHF 2.78 | CHF 2.71 |
| $10,000 | CHF 5.56 | CHF 5.42 |
| $20,000 | CHF 11.11 | CHF 10.85 |
| $50,000 | CHF 27.78 | CHF 27.11 |
| $100,000 | CHF 55.56 | CHF 54.23 |
| $200,000 | CHF 111.1 | CHF 108.5 |
Going the other way
Useful at the ATM, where you choose an amount in Swiss francs and want to know what lands in your hand.
| Swiss francs | Argentine peso |
|---|---|
| CHF 1 | $1,844 |
| CHF 5 | $9,220 |
| CHF 10 | $18,440 |
| CHF 20 | $36,881 |
| CHF 50 | $92,202 |
| CHF 100 | $184,405 |
What catches people out in Argentina
Argentina has repeatedly had more than one effective exchange rate at once. Any single number, including the one on this page, is an approximation of a moving and contested target.
When this rule stops working
Rules of thumb rot quietly. This one holds while the rate stays roughly between 1,750 and 1,850 ARS to the franc. 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 CHF; ARS and 150+ other currencies unlock for $4.99, once.
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