SDTV to HDTV Calculator

This calculator converts 4:3 to 16:9 dimensions for estimating how big of an HDTV you need in order to maintain at least the same SDTV picture size.

You can enter a unit into any box, then hit tab or unfocus the input to update the calculation.

• 4:3 TV size:
  • diagonal:
  • height:
  • width:
• 16:9 minimum:
  • diagonal:
  • height:
  • width:

TV Distance Calculator

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