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Tools

Explore all tools available on Cat In A Box.

Biomarker Unit Converter

Convert common lab biomarker units and compare results across report formats.

VO2 Max Calculator

Estimate VO2 max with the Cooper 12-minute test or the 1.5-mile run formula.

VO2 Max Challenge Organizer

Run a group VO2 max challenge, time participants, and compare results.

Not Medical Advice: Everything presented on this app is for informational and educational purposes only. It is not intended as medical advice. Talk with your doctor if you have medical questions.