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Toman vs Rial: Why Iranians Use Both, Explained

If you have ever traveled to Iran, spoken to an Iranian about prices, or tried to send money back home, you have likely run into a deeply confusing aspect of the country's financial system: the dual use of "Rial" and "Toman." Understanding the difference between these two terms is absolutely essential for navigating Iran's economy.

The Short Answer: 1 Toman = 10 Rials

The mathematical difference is simple: One Toman is equal to ten Rials. You simply drop one zero from the Rial amount to get the Toman amount.

Why Do Both Exist?

The Rial (IRR) is the official, legal currency of the Islamic Republic of Iran. It is the currency printed on banknotes and coins, and it is the currency used in all official government documents, bank statements, and formal accounting.

However, no one in Iran actually speaks in Rials in their daily lives. In the marketplace, at the grocery store, or in a taxi, everyone uses the Toman. The Toman is a "super-unit" of the Rial. It was actually the official currency of Iran until 1932, and old habits die hard. More importantly, as inflation eroded the value of the currency over the decades, counting in Tomans became a practical necessity to deal with fewer zeros.

The Problem with Too Many Zeros

Iran has experienced chronic, severe inflation. Because the government has not officially redenominated the currency (chopped zeros off the printed bills) in a lasting way, everyday items cost astronomical amounts in Rials.

For example, a simple cup of coffee might cost 1,500,000 Rials. Saying "one million five hundred thousand Rials" for a cup of coffee is cumbersome. By dropping a zero, the price becomes "one hundred fifty thousand Tomans," which is slightly easier to digest.

In fact, Iranians often take it a step further in casual conversation. They might drop the "thousand" entirely. If you ask a shopkeeper the price of that coffee, they might simply say "hundred and fifty" (150). You are expected to know contextually that they mean 150 thousand Tomans (which is 1.5 million Rials).

How to Read Prices in Iran

When you go to a restaurant in Tehran, the menu will likely display prices with the word "Toman" written next to them. But when you go to pay with your Iranian debit card, the point-of-sale (POS) machine will process the transaction in Rials.

This is where tourists and expats often make mistakes. If the cashier types the amount into the card reader, you must double-check the zeros. If the bill is 200,000 Tomans, the machine screen should say 2,000,000 Rials. If you aren't paying attention, you might end up paying 10 times more, or 10 times less, than you intended!

Official Rates vs. Open Market Rates

Complicating matters further, the value of the Rial/Toman against foreign currencies like the US Dollar is split into different tiers. There is a subsidized government rate (used for importing essential goods like medicine) and a free open market rate (used by normal citizens and on the streets).

The open market rate is what dictates the real cost of living in Iran. When checking exchange rates for remittances or travel, you must always look at the open market Toman rate. You can easily do this by using our real-time Toman calculator to ensure you are doing the math correctly without getting lost in the zeros.