I received a photo from my friend traveling through Lebanon yesterday. He was holding a bundle of notes that looked like it came out of a board game, more than 50,000 Lebanese pounds. Do you know how much that is worth? About R$ 3.00. That made me reflect on something we don’t think about much: while here in Brazil we complain about the dollar at R$ 5.44, there are entire countries where the population lives with currencies that have literally lost their value. And it’s not an exaggeration. The Brazilian real closed 2024 as the worst currency in the world among the main ones, with a devaluation of 21.52%. But that’s nothing compared to what I’m going to show here.

In 2025, a global scenario of persistent inflation, political crises, and economic instability turned some currencies into symbols of fragility. And the question remains: what really destroys a currency to the point that it becomes practically colored paper?

Weak currency is never an accident. It’s always the result of a combination of factors that destroy confidence. Hyperinflation is the main culprit. While we get nervous about 7% inflation, there are countries where prices double every month. Then there’s chronic political instability, coups, civil wars, governments changing every year. When there’s no legal security, investors flee and the currency becomes paper. Economic sanctions also cause damage: when the international community closes its doors, the country loses access to the global financial system and the local currency becomes useless. Besides that, if the Central Bank doesn’t have enough dollars in reserves, the currency plummets. And there’s also capital flight, when even citizens prefer to store dollars informally instead of the local currency.

Now here’s the interesting part. The most devalued currencies in the world in 2025 tell very different stories from each other.

The Lebanese Pound is the absolute champion. Officially, it should be 1,507.5 pounds per dollar, but since 2020 that doesn’t exist in the real world. On the black market, you need more than 90,000 pounds to buy 1 dollar. Banks limit withdrawals, stores only accept dollars, Uber drivers in Beirut charge in dollars because no one wants the pound.

The Iranian Rial is another extreme case. American sanctions turned this into a third-world currency. With R$ 100, you become a millionaire in rials. The most interesting thing is that young Iranians are massively migrating to cryptocurrencies. Bitcoin and Ethereum have become a more reliable store of value than the national currency itself. Investing in cryptocurrencies has become the solution for many who want to preserve their capital.

The Vietnamese Dong is different. Vietnam has a growing economy, but the dong remains historically weak due to monetary policy. You withdraw 1 million dongs at an ATM and receive an amount that looks like money from a TV series. It’s great for tourists, with US$ 50 you feel like a millionaire. But for Vietnamese people, it means imports become expensive.

The Lao Kip suffers from a small economy, dependence on imports, and constant inflation. It’s so weak that at the border with Thailand, merchants prefer to accept Thai baht. The Indonesian Rupiah has also never managed to strengthen, despite Indonesia being Southeast Asia’s largest economy. Historically weak since 1998. But for Brazilian tourists, Bali is ridiculously cheap.

The Uzbek Sum reflects decades of a closed economy. Uzbekistan has made important reforms, but the currency remains weak. The Guinean Franc is classic: a resource-rich country (gold, bauxite) but with a weak currency due to political instability and corruption. The Paraguayan Guarani is traditionally weak, which keeps Ciudad del Este a shopping paradise for us Brazilians.

The Malagasy Ariary of Madagascar reflects one of the poorest nations in the world. Expensive imports, population with virtually zero international purchasing power. And wrapping everything up, the Burundian Franc, so weak that for large purchases people literally carry bags of money. Chronic political instability directly affects the currency.

The ranking of the most devalued currencies in the world in 2025 is not just a financial curiosity. It’s a clear reflection of how politics, trust, and economic stability are interconnected. For investors, some lessons stand out: fragile economies pose huge risks, cheap currencies may seem like opportunities but the truth is that most of these countries are in deep crises. However, there are opportunities in tourism and consumption; destinations with devalued currencies are financially advantageous for those arriving with dollars or reais.

Tracking how currencies plummet helps understand the effects of inflation, corruption, and instability in people’s real lives. Paying attention to these factors is a way to see the importance of trust, stability, and good governance for any economy. One way to ensure the appreciation of your money is to invest safely in assets that cross borders and are not subject to local inflation. Want to stay updated on how money turns into power or fragility around the world? The most devalued currencies continue to be fascinating indicators of where opportunities and risks are.