# CPTR Calculator — USMC WHtR Calculator

> USMC WHtR Calculator (iPhone/iPad app by LOGAN ROCKY LAI.)

- Source: https://appshunter.io/ios/app/cptr-calculator/id6791381310 (this page in markdown: same URL + `.md`)
- Developer: [LOGAN ROCKY LAI](https://appshunter.io/developer/6791381312)
- Category: Productivity, Reference
- Price: Free
- Age rating: 4+
- Requires: iOS 13.0 · 18 MB
- Languages: American English
- Released: 2026-07-23
- Data updated: 2026-07-30
- User reviews in markdown: https://appshunter.io/ios/app/cptr-calculator/id6791381310/reviews.md

## What is CPTR Calculator?

CPTR Calculator helps Marines quickly calculate body composition and circumference measurement results in accordance with MCO 6110.3A, the Marine Corps Body Composition and Military Appearance Program order.

Enter your height and circumference measurements to instantly calculate your body fat percentage using the official male or female circumference tables. If a measurement appears to be an outlier, the app flags it and asks you to verify the entry before calculating.

If your body fat percentage exceeds the standard, enter your PFT and CFT scores to determine whether you qualify for a performance-based exception, including the 285 PFT/CFT exemption and the 1% high-performer allowance.

FEATURES
• Fast, accurate body composition calculations based on MCO 6110.3A
• Complete PFT/CFT exception handling, including the 285 exemption and 1% allowance
• Male and female circumference tables
• Automatic outlier detection
• Dark mode support
• Works entirely offline—no account or internet connection required
• No advertisements, data collection, or tracking

CPTR Calculator is a simple, focused tool designed to reduce manual calculations and table lookups. It is built for Marines and other personnel who need a fast, reliable reference during weigh-ins and body composition evaluations.

DISCLAIMER
This app references MCO 6110.3A for informational and body-composition calculation purposes only. It is not intended for medical use and does not provide medical advice, diagnosis, or treatment. CPTR Calculator is independently developed and is not an official United States Marine Corps or Department of Defense application.


## Version history (last 1 release)

### 1.0 — 2026-07-23

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-30.*