I received a photo from my friend traveling through Lebanon last week. He was holding a bundle of notes that looked like it came out of a board game – more than 50,000 Lebanese pounds, equivalent to about R$ 3.00. That made me think: while here we complain about the dollar at R$ 5.44, there are countries where the population lives with currencies that have simply lost all value. And note that the Brazilian real closed 2024 as the worst currency in the world among the main ones, with a devaluation of 21.52%. That’s nothing compared to what you’re about to see.

What makes a currency so weak? It’s no accident. It’s always a explosive mix of factors. Uncontrolled inflation, where prices double every month. Chronic political instability. Economic sanctions that cut the country off from the global financial system. International reserves at their last gasp. And capital flight, when even citizens prefer to stash dollars under the mattress instead of trusting the local currency.

In 2025, with persistent inflation, political crises, and economic instability spreading worldwide, some currencies have become symbols of economic fragility. Here are the cheapest in the world relative to the real:

The Lebanese pound leads by a wide margin. Officially, it should be 1,507.5 pounds per dollar, but since 2020, that’s not the case in practice. In the real market, you need more than 90,000 pounds to buy 1 dollar. Banks limit withdrawals, stores only accept dollars, Uber drivers ask for foreign currency payments. It’s critical.

The Iranian rial comes right after. American sanctions turned it into a third-world currency. With R$ 100, you become a millionaire in rials. The government tries to control the exchange rate, but there are several parallel rates on the street. The most interesting part is that young Iranians are migrating to cryptocurrencies – Bitcoin and Ethereum have become a more reliable store of value than the national currency itself.

The Vietnamese dong is a different case. Vietnam has a growing economy, but the dong remains historically weak. You withdraw 1 million dongs from an ATM and get an amount worthy of a robbery series. Great for tourists, but for Vietnamese people, it means expensive imports and limited international purchasing power.

Next is the Laotian kip. Laos is in a tough spot: small economy, dependence on imports, constant inflation. The kip is so weak that at the border with Thailand, merchants prefer to accept Thai baht.

The Indonesian rupiah has been historically weak since 1998, despite Indonesia being Southeast Asia’s largest economy. An advantage for Brazilian tourists: Bali is ridiculously cheap. With R$ 200 a day, you can live like a king.

The Uzbek som still reflects decades of a closed economy, despite recent reforms. The country is trying to attract investments, but the currency remains devalued.

The Guinean franc is the classic: resource-rich country (gold, bauxite) but weak currency due to political instability and corruption.

The Paraguayan guarani is traditionally weak. For us Brazilians, Ciudad del Este remains a shopping paradise.

The Malagasy ariary reflects Madagascar’s reality as one of the poorest nations. Imports become very expensive.

The Burundian franc closes the ranking. So weak that for large purchases, people literally carry bags of money. Chronic political instability directly impacts the currency.

The ranking of the world’s cheapest currencies relative to the real is not just a financial curiosity. It’s a clear reflection of how politics, trust, and economic stability are interconnected. For investors, some lessons are obvious: fragile economies pose huge risks. Cheap currencies may seem like an opportunity, but most of these countries are experiencing deep crises. At the same time, destinations with devalued currencies can be financially advantageous for those arriving with dollars, euros, or in some cases, reais. And it’s valuable to learn firsthand how currencies plummet and understand the real effects of inflation, corruption, and instability on people’s lives. Paying attention to these factors is a way to see the importance of trust, stability, and good governance for any economy and your future as an investor.