Inputs
Measurements are an estimate. Use a flexible tape measure. For women, hip is required.
Results
Fill inputs, then click Calculate.
This tool uses the U.S. Navy body fat formula. It’s not medical advice.
Measurements are an estimate. Use a flexible tape measure. For women, hip is required.
This tool uses the U.S. Navy body fat formula. It’s not medical advice.
Body fat calculator (US Navy method) — Estimate body fat percentage with the U.S. Navy tape-measure formula (male/female, metric & imperial). Shareable, browser-only.
Example: Use this tool to sanity-check numbers quickly, then share the link if you need to discuss with others.
FAQ: (1) Does it upload my data? No—runs in your browser. (2) Can I share results? Yes—use the share link feature. (3) Is it authoritative? Treat it as a convenience, not professional advice.
體脂率估算器（美國海軍公式） — 用美國海軍皮尺公式估算體脂率（男女、支援公制/英制）。可分享連結、純前端。
範例：用這個工具快速試算與對照結果，需要討論時再把連結分享給對方。
FAQ： (1) 會上傳資料嗎？不會，計算在瀏覽器內完成。 (2) 能分享結果嗎？可以，用分享連結。 (3) 準確嗎？請把它當作便利工具，不是專業建議。