Blue Light Exposure Calculator
Estimate your daily blue light exposure score based on screen time, brightness, device count, and blue light filter usage.
Inputs
hours
%
%
Results
Daily Exposure Score (0-100)
46
Recommended Daily Breaks
24 breaks
Weekly Screen Hours56 hours
Filter Effectiveness0%
How to Use This Calculator
- Enter your total daily Screen Hours Per Day across all devices (computer, phone, tablet, TV).
- Set your Average Screen Brightness as a percentage (0–100%). Lower brightness reduces exposure.
- Enter the Number of Devices you use regularly throughout the day.
- Set your Blue Light Filter Level if you use blue-light glasses, night mode, or software filters (0% = no filter).
- Review your Daily Exposure Score (0–100) and Recommended Daily Breaks based on the 20-20-20 rule.
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