Half a bottle of coating on one car? That's your profit running down the drain. Track how much of each chemical a car actually uses, what it costs you per vehicle, and how much stock you have left before you reorder.
Bigger vehicles use more product. Pick one — it scales the usage below so your cost is realistic.
Rename these to the brands you actually use, and set each one's bottle size, price, and how much you use on a standard car. Everything saves on this device.
| Product | Bottle | Unit | Bottle $ | Use / car | Cost / car | Cars / bottle | In stock | Cars left |
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Usage amounts are starting estimates — every product and detailer is different, so set your own real numbers. Prices & usage are saved only in this browser; nothing is uploaded. Not financial advice.
You can account for every ounce of chemical and still lose more to the phone. A missed call is a job you never priced, never booked and never counted. Text-back turns it into a conversation instead.
See how it works →How to stop wasting chemicals and know your true cost per car. The questions detailers search for most.
A typical consumer coating uses roughly 5–15 ml per vehicle depending on panel size and the product, so a 30 ml bottle usually does 2–6 cars. Over-applying is the number-one waste — and it causes high spots and streaks. Prime the applicator, use a few drops per section, and level it properly. Set your product's real numbers above to see your exact cost per car.
For each product, divide the bottle cost by how many cars the bottle does (bottle size ÷ how much you use per car), then add every product together. Example: a $60, 30 ml coating used at 5 ml/car costs $10 per car. This tool does the math for your whole lineup and totals it for the vehicle in front of you.
Three things: dilute concentrates correctly (see our Chemical Dilution Calculator) instead of free-pouring; measure coatings, polishes and compounds rather than eyeballing; and track usage per car so you catch the products you burn through too fast. Most waste comes from over-applying coatings and over-saturating pads and towels.
Track how much is left and how many cars each bottle does. Enter your current stock above and the tool shows cars left per product and flags anything running low — so you reorder before you run out in the middle of a job. Knowing your cars-per-bottle also makes buying in bulk an easy math decision.
