Body Fat Calculator
FreeSecureEstimate body fat percentage using the US Navy Method with neck, waist, and hip measurements. Get your fitness category and ideal body fat range.
Body Fat % Calculator
Estimate body fat % using body measurements.
US Navy Method — requires body measurements in cm
How to use Body Fat Calculator
Upload your file
Drag and drop or browse to select your file. Accepts any supported file. Up to 1 file at a time.
Configure options
Adjust any settings for Body Fat Calculator, then click the button to start processing. It happens instantly in the cloud.
Download the result
Your processed file is ready immediately. Click Download — the file is available for 1 hour.
Frequently asked questions
Is this tool completely free?
Yes — this tool is free with no account required. Free users get up to 50 MB per file. Premium users unlock higher limits and batch processing.
Are my files stored after processing?
No. All uploaded files and processed outputs are automatically deleted from our servers within 1 hour of processing. We never store, sell, or share your data.
How secure is my data?
All file transfers use TLS 1.3 encryption. Files are processed in isolated sandboxes and immediately discarded. We are GDPR-compliant and do not use your files for any purpose beyond processing.
What happens if processing fails?
If processing fails, no data is retained and you are not charged. Simply re-upload your file and try again. If the problem persists, contact our support team.
Can I use this on mobile?
Yes! ToolHive is fully responsive and works on any modern device — phone, tablet, or desktop. All features are touch-friendly.
Your privacy is our priority
All files are transferred over TLS 1.3 encrypted connections and processed in isolated environments. Files are automatically deleted within 1 hour — we never store, share, or train AI models on your data.