How Much Is Rhodium In A Catalytic Converter? (Explained)

Your car has a catalytic converter for vehicle emission. Its mechanism converts toxic substances in cars into less toxic ones. 

So, how much is Rhodium in a Catalytic converter? The quantity of Rhodium in a catalytic converter is between three to four grams. 

Rhodium is expensive; buying it per gram will cost you 290 dollars. However, the price of a Catalytic converter will still depend on the metal quality of the converter.

The primary use for Rhodium in cars is to reduce its nitrogen oxides to exhaust gases. Also, Rhodium can be used in various ways, such as making nitric acid, acetic acid, and hydrogenation reactions. 

In-car industry, Rhodium is essential because it keeps you safe and not intoxicated while driving your car. 

You can also call Rhodium a noble metal because it has the capacity of being an outstanding oxidation resistance, even if your car is at a high temperature. Another unique property of Rhodium is its nontoxicity mechanism and its resistance to wear and tear. 

Your car won’t last because it will get worn quickly without Rhodium. Cars are made up of multiple parts and chemicals. Read more below if you have no idea what Rhodium is and how much it is in a catalytic converter. 

How Much Is Rhodium In A Catalytic Converter

Do Catalytic Converters Have Rhodium In Them?

Yes, they have Rhodium in them. It is used as an effective exhaust system for your car. In addition, your catalytic is used as a control device to convert toxic products to safer gases. 

Rhodium also works in platinum or palladium, lowering its nitrogen oxide discharge in your car’s atmosphere. Moreover, Rhodium is widely used in today’s automotive industry because of its capacity to increase the car’s stringent emission norms.

How Much Rhodium Is Inside A Catalytic Converter?

In a catalytic converter, you will only have three to four grams of Rhodium. So it doesn’t go beyond that weight because it will have harmful effects if it does. 

Hence, there are other ways to apply Rhodium, such as jewelry, mirrors, and searchlights. With a proper amount of Rhodium on things, you are safe. 

What Vehicles Have The Most Rhodium In The Catalytic Converters?

Most vehicles that contain most Rhodium are those cars with a large engine. Large vehicles have more than one catalytic converter, so they’re expensive. 

However, vehicles with catalytic converters are prone to theft because it is expensive to sell in the market. One of the car industries that use this chemical is the Toyota Prius.

Do you want to extract Rhodium from the catalytic converter? Read our article on how to extract Rhodium from a catalytic converter.

What Is Rhodium?

Rhodium is an ultra-shiny, corrosion-resistant metal that is very useful in many industries. You can use it in multiple kinds of stuff, and when you sell it, it will cost a lot. 

Rhodium is not found in pure form; instead, you will collect it in a minuscule by-product of platinum, copper, and nickel.

What Is The Purpose Of Rhodium In A Catalytic Converter?

The purpose of Rhodium in a catalytic converter is to convert the gases from it into a less toxic gas. A catalytic converter carries nitrogen oxide, which is bad for you if you inhale it. 

It can cause nausea, headache, and, worst, death. But, most car producers use it to keep their clients healthy while they are on the road. 


In summary, in a catalytic converter, three to four grams of Rhodium serves as the converter of the toxic substance. Also, it is used primarily by large vehicles because they have more than one catalytic converter. 

Moreover, once your car has a catalytic converter, secure it because your car is prone to theft. Once you’re not in your car, lock it and install a noise once they’re someone who will try to break into your car

What about other precious metals in catalytic converters?


Image credits – Canva

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My name is Hank, and I've been in the automotive industry for 27 years. I've been working in my own auto repair shop for the last 13 years, and now I want to help you here, on my blog. Let me know if you have any questions. Read more