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体脂肪率計算機

Body fat calculator: based on US Navy and BMI formulas, enter height, weight and waist/hip to estimate body fat %, fat mass and health category.

使い方

性別、身長、ウエスト（女性はヒップと首も）を入力。体脂肪率とレベルがリアルタイム計算。

Overview

Body Fat Calculator is a Fitness tool. Based on US Navy and BMI formulas, enter height, weight and waist/hip to estimate body fat %, fat mass and health category. It runs 100% in your browser with no upload, so you get instant results with privacy. Whether you need a quick answer or batch processing with precise control, you can enter, validate and export in seconds. The UI is responsive on mobile, tablet and desktop and supports one-click copy.

Use cases

  • Daily use of Body Fat Calculator: Enter gender, height, waist (plus hip and neck for women). Body fat and category update instantly. — enter and get instant results without manual lookup.
  • One-click copy keeps results ready to save, check or share with family and pros.
  • Use Body Fat Calculator offline or on poor network — all calculations stay local and private.
  • Plan calories, hydration and training for clients
  • Log diet, water and workouts daily

How to use

  1. 1 Enter gender, height, waist (plus hip and neck for women). Body fat and category update instantly..
  2. 2 Pick goal (BMI, BMR, TDEE)
  3. 3 See grade and suggestions; compare plans
  4. 4 Copy or export for tracking

Highlights

  • Local & private: processing stays in your browser
  • Live validation with tolerant parsing
  • One-click copy and export for docs, code or sheets
  • Batch and offline support under poor network

Notes

  • Special populations consult a doctor
  • Formulas differ slightly; stick to one for trends
  • For reference only; not medical advice

FAQ

Why slight differences?
Different formulas and activity factors.
Does BMI equal health?
BMI is one indicator; combine with body fat and waist.
How is Body Fat Calculator different?
It runs locally with a focus on speed and privacy, plus tolerant parsing for “body fat calculator” and one-click copy for reuse.
Can I use results in official reports?
Use it as a working draft and cross-check with authoritative sources; keep the exported log and parameters for traceability.
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すべての計算はブラウザ内で実行され、データはアップロードされません。