How much is your catalyst?

How Much Is a Catalytic Converter Worth?

Every day we get asked the same question: "How much is this or that catalytic converter worth?"

A number of factors affect the value of a catalytic converter:

  1. The market the car was originally built for. The value of a converter depends on which market the specific car was originally manufactured for. Cars built for markets with strict environmental standards (Europe, Japan, North America) get converters with a higher precious-metal loading — the cost-cutting starts right at the factory. For less regulated markets, manufacturers often fit lighter versions with minimal metal content.
  2. Vehicle class. The higher the class, the better the converter tends to be — a result of both stricter standards for those models and higher durability requirements.
  3. Mileage and age. As a car ages, the converter's ceramic core wears down thermally and mechanically, and some metal is gradually lost from its surface. Here's an interesting but verified fact: scientists really do find traces of platinum, palladium and rhodium in roadside dust and soil — the result of decades of converter wear. But the scale is tiny: roadside soil contains only a handful to a few dozen nanograms of metal per gram of dust, while the converter itself contains milligrams per gram of ceramic. That's a difference of hundreds of thousands of times, so this effect has essentially no impact on a converter's resale value.
  4. Driving style. Aggressive, sporty driving wears the converter out faster due to higher temperatures and engine speeds. Worth noting separately: removing a catalytic converter is illegal and the car won't pass a roadworthiness inspection — and the actual power gain from removing it is usually far more modest than people assume, depending heavily on the specific engine.
  5. Fuel. Certain fuel impurities, sulfur above all, don't physically "wash out" the metal — they poison the converter's active surface. That reduces its efficiency, but not the amount of metal itself.
  6. Converter type by precious-metal composition — the main price driver:
  • Pt + Pd + Rh ("classic"). Contains all three platinum-group metals, averaging roughly Pt 1,470 / Pd 900 / Rh 270 ppm per tonne of ceramic (exact figures vary significantly by model — only an assay gives a precise reading).
  • Pt + Rh (no palladium). Typically older-generation converters or select premium petrol models from before the industry-wide shift to palladium. Important clarification: diesel cars almost never have rhodium in their converters. A diesel oxidation catalyst (DOC) operates in an oxygen-rich exhaust environment where rhodium can't efficiently reduce NOx — so diesel converters almost always contain only platinum and palladium, no rhodium. Platinum content in Pt+Rh converters is usually 2,500–5,500 ppm.
  • Pd + Rh (no platinum). Back in the early 2010s, these converters made up as much as 40% of all converters on the market at the time. But when palladium prices spiked, manufacturers began shifting back to platinum on a large scale — this transition is well documented in the industry, and the balance has shifted more than once since, tracking metal prices. Palladium content in these converters is usually 3,000–5,500 ppm.

The main takeaway: you can't state an exact price for a catalytic converter without analyzing its composition. And even knowing the composition in advance, platinum, palladium and especially rhodium prices are extremely volatile and can multiply within a few months — rhodium has done exactly that more than once in recent years. So any "market average" figure, even one fixed just a year or two ago, is almost certainly out of date by the time you read it.

Buying or selling converters "by eye" or from outdated catalogs is risky for both buyer and seller.

Companies without assay equipment are forced to average their price across a whole category — and to avoid losing money on the spread within that category, they typically buy at the low end of the range.

We do it differently: we determine the exact composition of every converter and quote a price based on current Pt/Pd/Rh market rates on the day you bring it in. Bring your catalytic converter to BASE METAL — we'll give you an exact figure, not a years-old average range.

Last updated: 20 July 2026