Free Detailing Calculator
PIR Calculator
Estimate snow foam panel impact ratio from product amount, foam cannon bottle size and total output.
Enter your values to calculate.
Panel Impact Ratio
Snow Foam PIR Calculator
PIR matters because the mix inside a foam cannon is diluted again by the pressure washer. This calculator estimates the final product strength that reaches the vehicle panel.
How This Helps
Built for the way detailers actually work.
Estimate snow foam panel impact ratio from product amount, foam cannon bottle size and total output. The aim is simple: remove guesswork before product touches the vehicle.
Use the result as a practical starting point, then check the product label, surface sensitivity and level of contamination. Detailing maths is useful because it makes the process repeatable.
Search focus: snow foam PIR calculator, panel impact ratio calculator, pre wash PIR calculator.
Calculator FAQ
PIR Calculator questions
What does PIR mean in detailing?
PIR means panel impact ratio. It estimates the chemical strength that reaches the car after the foam cannon and pressure washer have diluted the mix.
Is foam cannon bottle mix the same as PIR?
No. Bottle mix is the strength inside the cannon bottle. PIR is the final strength on the vehicle.
Why is PIR useful?
It helps compare products and avoid using too much or too little chemical during pre-wash.