Calculate exact VLT percentages for layered window tints with legal compliance checking
Calculating visible light transmission (VLT) for layered window tints is complex and crucial for legal compliance. Many people struggle with understanding how multiple tint layers affect the final VLT percentage, leading to expensive legal issues and re-tinting.
Our professional VLT calculator uses precise formulas to calculate final VLT percentages for single or multiple tint layers. It includes legal compliance checking for all US states and international regions, ensuring your tint meets local regulations.
Factory glass VLT percentage (usually 85-90%)
Window tint film VLT percentage
Number of tint film layers to apply
Select your location for legal compliance checking
Select the window type being tinted
Select the type of tint film
Final visible light transmission percentage
Percentage of light blocked by tint
Legal compliance status for selected region
Estimated heat rejection percentage
UV radiation protection percentage
Determine your vehicle's factory glass VLT percentage
Choose your tint film VLT percentage
Enter the number of tint film layers
Select your state/region for legal compliance
Check final VLT and legal compliance
Ensure your tint meets local legal requirements
Scenario:
You want to tint your windows as dark as legally possible while staying within local regulations.
Benefits:
Calculate VLT for customer installations
Scenario:
You're a professional tinter providing quotes and ensuring customer compliance with local laws.
Benefits:
Calculate VLT for complex layered installations
Scenario:
You're installing multiple tint layers for extreme privacy or special applications.
Benefits:
VLT (Visible Light Transmission) measures the percentage of visible light that passes through glass. It's crucial for legal compliance, safety, and performance of window tinting.
Check your vehicle's specifications or use a VLT meter. Most factory automotive glass has 85-90% VLT, but it can vary by manufacturer and model.
Yes, but each layer multiplies the VLT effect. Two 50% films result in 25% final VLT (50% × 50% = 25%), making it much darker than expected.
Illegal tint can result in fines, failed inspections, and required removal. It can also affect visibility and safety, especially at night.
Yes, most jurisdictions have different requirements for front side windows, rear side windows, and rear windows. Front windows typically have stricter limits.
Our calculator uses industry-standard formulas and is accurate for planning purposes. However, actual VLT can vary slightly due to manufacturing tolerances.
Always measure your factory glass VLT with a professional meter before installation. Don't rely on estimates or manufacturer specifications alone.
Research local tint laws thoroughly. Some areas have additional restrictions on reflectivity, color, or specific window positions.
Very dark tints can severely impact night visibility. Consider your driving habits and safety requirements when choosing VLT levels.
Manufacturing tolerances can cause VLT to vary by ±2-3%. Stay well within legal limits to account for these variations.