Toolhealth

BMI Change Analyzer

Compare your BMI change rate against WHO/CDC guidelines to see whether a shift is steady, fast, or worth a professional’s opinion.

Works Offline100% Free

Processed 100% locally in your browserPrivate & Safe

BMI Change Analyzer runs entirely on your device using Web API standards. No data is ever uploaded to UtilixVerse servers.

Your Input
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Browser
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Result
No Server UploadsNo Account RequiredWorks OfflineZero Data Logging

WHO/CDC Weekly Rate & Progress Evaluation

Analyze your weekly rate of BMI change against evidence-based WHO and CDC health guidelines. Detect trend rates, weekly deltas, and progress classifications.

BMI Change & Rate Velocity Analyzer

Free Feature

Analyze weekly rate of change velocity against clinical WHO/CDC health guidelines.

Add Measurement Entry

Latest Rate-of-Change Analysis

Need ≥ 2 records
📊

Add at least 2 chronological measurements to calculate absolute BMI change, percentage change, and weekly rate of change against healthy guidelines.

ℹ️ Data Notices:

• No BMI records found. Add your first measurement to begin tracking.

All data stays in your browser

Your data stays private — no signup, no upload

This tracker runs entirely in your browser. Measurements are stored only on your device (localStorage) and are never sent to a server. No account, email, or personal information is required to use this free tool.

Frequently Asked Questions About BMI Change Analysis

What is the BMI Change Analyzer?

The BMI Change Analyzer evaluates your rate of body mass index change over time against clinical WHO and CDC health guidelines. It calculates weekly rate of change, total percentage shifts, and classifies progress as healthy, stable, warning, or requiring medical attention.

What is considered a healthy weekly rate of BMI change?

Clinically recommended weight loss is 0.5 to 1.0 kg per week (approx. 0.15 to 0.35 BMI points/week). Healthy weight gain is 0.25 to 0.5 kg per week. Changes exceeding 0.7 BMI points/week are flagged as rapid or extreme.

How does the analyzer detect data anomalies?

The analyzer flags edge cases such as measurement gaps under 24 hours (fluid shifts), height measurement discrepancies (> 2 cm shift in adults), or intervals over 6 months.

Is my data secure?

All analysis is performed entirely in your browser using local storage. No health data is ever transmitted to external servers.

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