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Calcimator

Vision Display Terminal Calculator

Screen distance and height from workstation assessment.

Inputs

Results

Eye strain risk (0-100)

16

Viewing angle (degrees)4.8
Optimal distance (cm)73
Min font size (pt)1
20-20-20 breaks/day24
Adjustments needed0
How to Use This Calculator
  1. Enter screen distance (cm), screen top height relative to eye level (cm), and screen diagonal size (inches).
  2. Enter daily screen hours.
  3. Read eye strain risk score (0-100) based on the 20-20-20 rule and VDT ergonomic standards.
  4. Review recommended screen height and distance adjustments to reduce digital eye strain.
  5. Implement the 20-20-20 rule: every 20 minutes, look 20 feet away for 20 seconds.
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