I received a photo from my friend traveling through Lebanon last week. He was holding a bundle of banknotes that looked like Monopoly money — more than 50,000 Lebanese pounds, equivalent to about R$ 3.00. That made me think: while we complain about the dollar here in Brazil, there are countries where the population lives with currencies that have simply disappeared from the economic map.

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 about to show here. In 2025, a global scenario marked by persistent inflation, political crises, and instability turned some currencies into true symbols of economic fragility.

But what really causes a currency to lose so much value? It’s usually an explosive combination: uncontrolled inflation (imagine prices doubling every month), chronic political instability, economic sanctions, low international reserves, and capital flight. When even citizens prefer to store dollars informally instead of the local currency, you know the situation is critical.

So here are the most devalued currencies in the world that are truly at rock bottom:

1. Lebanese Pound (LBP) — 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, and many stores only accept dollars. A journalist told me that in Beirut, Uber drivers ask for payment in dollars because no one wants Lebanese pounds.

2. Iranian Rial (IRR) — Sanctions have turned the rial into a third-world currency. With R$ 100, you become a “millionaire” in rials. Interestingly, young Iranians are migrating to cryptocurrencies like Bitcoin and Ethereum, which have become a more reliable store of value than the national currency itself.

3. Vietnamese Dong (VND) — Vietnam has a growing economy, but the dong remains historically weak due to monetary policy. You withdraw 1 million dongs at the cashier and get an amount worthy of a fiction series. Great for tourists, but for Vietnamese people, it means expensive imports and limited purchasing power.

4. Lao Kip (LAK) — Laos is in a complicated situation with a small economy, dependence on imports, and constant inflation. The kip is so weak that at the border with Thailand, many merchants prefer to accept Thai baht.

5. Indonesian Rupiah (IDR) — Indonesia is Southeast Asia’s largest economy, but the rupiah has never managed to strengthen. Since 1998, it’s been among the weakest currencies in the world. Advantage: Bali is ridiculously cheap for Brazilians.

6. Uzbek Sum (UZS) — Uzbekistan has implemented significant economic reforms, but the sum still reflects decades of a closed economy. The country tries to attract investments, but the currency remains weak.

7. Guinean Franc (GNF) — A classic case of a resource-rich country with a devalued currency. Guinea has gold and bauxite, but political instability and corruption prevent this wealth from translating into a strong currency.

8. Paraguayan Guarani (PYG) — Our neighbor has a relatively stable economy, but the guarani is traditionally weak. For us Brazilians, Ciudad del Este remains a shopping paradise.

9. Malagasy Ariary (MGA) — Madagascar is one of the poorest nations in the world, and the ariary reflects that. Imports become very expensive, and the population’s international purchasing power is practically zero.

10. Burundian Franc (BIF) — Closing the ranking, a currency so weak that for large purchases, people literally carry bags of money. Chronic political instability directly reflects on the national currency.

The ranking of the most devalued currencies in the world is not just a financial curiosity. It’s a clear reflection of how politics, trust, and economic stability are interconnected. For those thinking about investing or traveling, some lessons are obvious: fragile economies pose huge risks, countries with devalued currencies can be financially advantageous for tourism, and watching how these currencies plummet helps understand the real effects of inflation, corruption, and instability.

A thought: while some countries fight against devalued currencies, the importance of stability, trust, and good governance has never been clearer. Better investing is truly about securing your future.