Catalytic Converter Value Calculator

Catalytic converters contain platinum group metals (PGMs): platinum (Pt), palladium (Pd), and rhodium (Rh). These metals act as catalysts in the oxidation and reduction reactions that convert carbon monoxide, hydrocarbons, and nitrogen oxides to less harmful gases. The precise amounts vary widely by vehicle make, model, engine size, and vintage. Rhodium is typically present in the smallest amount but is often the most valuable per gram.

PGM prices are quoted per troy ounce (ozt) on commodity exchanges. 1 troy ounce = 31.1035 grams. Prices fluctuate daily based on supply and demand, with major sources in South Africa (platinum, palladium, rhodium), Russia (palladium), and Zimbabwe. For current spot prices, refer to the USGS Mineral Resources Program data or commodity market feeds. This calculator uses user-editable price fields so you can enter today's actual prices.

The combination of high PGM values, easy access from beneath the vehicle, and rapid removal (typically under 2 minutes with a reciprocating saw) makes catalytic converters a target. The NICB (National Insurance Crime Bureau) and FBI report significant increases in converter theft since 2019, coinciding with palladium and rhodium price spikes. Many states have enacted laws requiring recyclers to verify ownership before purchasing converters.

A recycler's offer is always less than the theoretical spot value because the recycler bears the cost of assay, smelting, refining, transportation, and margin. Typical recycler payouts are 60 to 80% of the refined metal value. This calculator shows the theoretical gross PGM value; your actual scrap offer will be lower. Always get multiple quotes from licensed recyclers.

Selling your own vehicle's catalytic converter is legal. However, selling a converter you did not own (stolen converter) is a felony in all US states. Many states (California, Texas, Florida, and others) now require converters sold to recyclers to be accompanied by proof of vehicle ownership (title or registration) and a government-issued ID. Recyclers in many states must also record serial numbers and hold converters for a minimum inspection period before resale.