# Body Fat Calculator - LeanFuel

> Protein & Macro Tracker

Canonical page: [https://chrome-stats.com/d/id6761960180](https://chrome-stats.com/d/id6761960180)

## Overview

- **ID:** `id6761960180`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Jakub Laszczyk
- **Category:** Health & Fitness
- **Version:** 1.0
- **Last updated:** 2026-04-14
- **First published:** 2026-04-14
- **Size:** 20 MB
- **Data as of:** 2026-09-21
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/body-fat-calculator-leanfuel/id6761960180)
- **Website:** [https://www.jakubl.com/](https://www.jakubl.com/)
- **Privacy policy:** [https://www.jakubl.com/privacy/](https://www.jakubl.com/privacy/)

## Description

Stop guessing your protein needs. Calculate your real body fat % in 60 seconds and get a protein target based on lean mass — not total weight. Try free for 7 days.

Most protein calculators use your total body weight — so at 220 lbs, they tell you to eat 220g of protein a day. That's wrong, and you know it.

LeanFuel uses the U.S. Navy Method to calculate your actual body fat percentage from simple tape measurements. Then it gives you a protein target based on your lean body mass — the muscle you actually need to fuel.

HOW IT WORKS
1. Enter your measurements (neck, waist, height, weight)
2. Get your body fat %, lean mass, and fat mass instantly
3. Receive a personalized daily protein target
4. Log your protein and hit your goal every day

SMART PROTEIN TARGETS
Your target adjusts based on your fitness goal and activity level:
- Build Muscle: higher protein to fuel muscle growth
- Lose Fat: extra protein to preserve lean mass in a deficit
- Maintain: moderate protein for steady body composition
- Recomp: optimized for simultaneous fat loss and muscle gain

TRACK YOUR BODY RECOMPOSITION
- Body fat % over time (watch it go down)
- Lean mass over time (watch it go up)
- Protein target history with each measurement
- Real body recomp data — not just the scale

DAILY PROTEIN LOGGING
- 100+ built-in foods with verified protein values
- Quick-log in one tap or add your own custom foods
- Track daily grams vs. your target
- Watch your protein ring fill up throughout the day

STAY MOTIVATED
- Earn XP for logging, hitting targets, and measuring
- Level up through 15 ranks from Beginner to Recomp Master
- Unlock 19 achievement badges for streaks and milestones
- Maintain daily log streaks and target streaks

BUILT FOR YOUR LIFESTYLE
- Beautiful dark mode design
- BMI calculator included
- Metric and imperial units
- 30 languages supported
- No account required — your nutrition data stays on your device

Try LeanFuel free for 7 days. Then continue with a weekly ($4.99/week) or yearly ($29.99/year) subscription to unlock unlimited measurements, full charts, and all features.

---

LEGAL:
Privacy Policy: http://www.jakubl.com/privacy.html
Terms of Use (EULA): http://www.jakubl.com/terms.html

SUPPORT:
support@jakubl.com
X: @jakublaszczyk

## Rankings

- #1,675,546 — Overall

## Similar extensions and apps

- [Protein Calculator & Recipes](https://chrome-stats.com/d/id1449243734) — 3.70 / 5
- [Lean - Simple BFP Tracker](https://chrome-stats.com/d/id6763526727)
- [Lean: Body Fat & BMI Tracker](https://chrome-stats.com/d/id6784176876)
- [Protein Tracker and Calculator](https://chrome-stats.com/d/id6758638217) — 4.80 / 5
- [LeanFrame: AI Body Fat Scanner](https://chrome-stats.com/d/id6788402994)
- [Fuel Up: Protein Tracker](https://chrome-stats.com/d/id6796510347) — 5.00 / 5
- [BMI Calculator: Body Fat Log](https://chrome-stats.com/d/id6772263032)
- [Fitness PRO Calculator](https://chrome-stats.com/d/id6744655953)
- [FitApp Fitness calculators](https://chrome-stats.com/d/id6752880695)
- [Body Fat calculator & Tracker](https://chrome-stats.com/d/id6744612317) — 5.00 / 5
- [Fitness Calc Pro](https://chrome-stats.com/d/id6747368783)
- [Body Fat Calculator (PRO)](https://chrome-stats.com/d/id6738918673)

---

Source: [Chrome-Stats](https://chrome-stats.com/d/id6761960180)