economia ·
Refueling in Argentina: is it worth it?
Marco Três newsroom · edited by Annie Grellmann
Refueling in Puerto Iguazú, Argentina, costs R$ 7.84 per litre, 22% more expensive than the R$ 6.42 / l gasoline in Foz do Iguaçu, Brazil.
The ANP (National Agency of Petroleum, Natural Gas and Biofuels) average indicates that regular gasoline in Foz do Iguaçu, Brazil, is R$ 6.42 per litre in the week of June 28 2026. In Puerto Iguazú, Argentina, regular gasoline costs 2,276 pesos per litre, and using the informal market dollar rate (1,510 ARS/US$) and the official rate of R$ 5.20 per dollar, the converted price in reais reaches R$ 7.84 per litre.
Conversion explained: the dollar in the informal market is the rate used in exchange houses in Argentina; 1 US$ = 1,510 Argentine pesos. Then, 1 US$ = R$ 5.20, which is the official purchase rate of the real. Applying these two steps, 2,276 pesos ÷ 1,510 ≈ 1.51 US$, and 1.51 US$ × R$ 5.20 ≈ R$ 7.84.
With these numbers, refueling in Argentina is 22% more expensive than in Brazil (R$ 7.84 - R$ 6.42 = R$ 1.42; R$ 1.42 ÷ R$ 6.42 ≈ 0.22). There are no official gasoline price data for Paraguay, so the comparison is limited to Brazil and Argentina.
What this means for you: if your plan includes driving between Foz do Iguaçu and Puerto Iguazú, it is more economical to fill up in Foz before crossing the border; you will save about R$ 1.40 per litre, which can represent R$ 70 to R$ 100 on a 50‑to‑70‑litre trip, enough to use on food or tickets to local attractions.
Read also: How much cash can I bring to Argentina and Paraguay?
Frequently asked questions
- Is it ever worth buying gasoline in Argentina?
- Only if the local price is temporarily lower than the Brazilian one or if there are specific promotions; otherwise, the extra conversion cost makes the purchase less advantageous.
- How do I convert the Argentine gasoline price to reais?
- Divide the price in pesos by the blue dollar rate (1,510 ARS/US$) to get dollars, then multiply by the official dollar rate (R$ 5.20) to obtain the price in reais.
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Content verified by the newsroom based on an official source: Dados Marco Três · ANP + Secretaría de Energía (AR). Last checked: 7/4/2026. Found something inaccurate? We fix it fast. How we work.
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