Navy BCA Calculator
Calculate your Body Composition Assessment using Navy taping standards. SeaBag's BCA calculator walks you through circumference measurements step-by-step and computes body fat percentage against current thresholds.
Tape-measurement input
Enter neck, waist, and hip circumferences with guided prompts.
Body fat calculation
Instant body fat percentage computed against Navy standards.
Pass/fail thresholds
See whether your measurement meets the current BCA standard.
Step-by-step wizard
Guided input — not a wall of fields. Each step is clear.
Offline-ready
No internet required. Works at PFA check-in or on the ship.
Try it free on your phone
SeaBag works offline, no account needed. Download once, use anywhere.
Download on the App Store