The #1 cow-based calculator of QR code minimum sizes!

Update Notes

V1.8 – Current Version

Distance increase and simplified notes for more engagement

  • Distance now goes up to 40′
  • Flip “All Phones” results to show first
  • “More Engagement” is simplified to remove suggested size
  • Adjusted result descriptions

September 19, 2025


V1.7

Improved QR data and language:

  • Version 6 QR codes added
  • “How to use” instructions added
  • Adjusted result descriptions

March 13, 2025


V1.6

Extended distances and improved language:

  • 15ft & 20ft distances added
  • Data correction for V5 at 6 feet (4.8 > 5.3)
  • Better result descriptions
  • Metric unit change from CM to MM

V1.5

Improved QR capabilities & information:

  • Improved QR version reader (reads most color codes)
  • Simple QR generator added
  • 6 Device testing results
  • Bug Fix -extra padding in version reader
  • Updated header menu
  • Better FAQ write-ups on result destinctions

V1.4

Improved data set and results:

  • Bug fix – Distance calculate lag when swapping unit types
  • Updated metric specific distances and results
  • Improved tested “Best Practice” numbers (not calculated)
  • Updated “Best Practice” language

V1.3

Expanded capability and improved data set:

  • New calculator logic
  • Added Version 5 QR Codes
  • 5 Device testing results
  • Separation of imperial & metric calculators
  • Improved phone data for close range scanning
  • Updated “Better Size” data
  • Update FAQ page

V1.2

Expanded capability:

  • Replace QR Version guide with QR Version scanner on home page.
  • Full QR Version Guide moved to separate page
  • 4 Device testing results

V1.1

Expanded capability and improved data set:

  • Add Version 4 QR Codes
  • Minor fixes in existing data

V1.0

Initial launch (proof of concept), based on limited device data:

  • QR Versions 1-3
  • Distances 6″ to 10′
  • Low contrast setting
  • QR Version Guide
  • 3 Device testing results

Launch Date Jan 9, 2025