What Is Window Tint
Window tint refers to a thin film applied to vehicle, home, or commercial windows to reduce glare, increase privacy, and block harmful UV rays. The key metric used to describe window tint is Visible Light Transmission (VLT), which is the percentage of visible light that can pass through the window.
For example, a tint with 50% VLT allows half the visible light through, while a 5% VLT blocks nearly all light, creating a darker, more private look. Tinting is popular not only for its appearance but also for practical benefits like heat rejection, interior protection, and enhanced security.
What Is a Tint Calculator
A tint calculator helps you determine the combined VLT when you apply a window tint film over glass that already has its own VLT rating. Since tint film and glass each reduce light transmission, their effects are multiplicative, not additive.
This tool calculates how much visible light will pass through after both layers are applied—helping you stay compliant with local tint laws or simply achieve your preferred level of darkness. It’s especially useful for car owners, installers, and DIYers who want quick and accurate results.
How To Use the Infinity Calculator Tint Calculator
Using our tint calculator is easy and only takes a few seconds:
Step 1: Enter Your Values
- Window Tint VLT: This is the visible light transmission of the tint film (e.g., 50%).
- Window VLT: This is the VLT of the glass itself (e.g., 80%).
Both inputs are in percentages and represent how much visible light passes through each layer.
Step 2: View the Result
Click "Calculate Window Tint" to get the combined VLT, which represents the final level of light transmission through both the window and tint film. For example, a 50% tint on an 80% glass results in a 40% combined VLT.
You can use this value to check if your setup is within legal limits or to match your desired visual effect.