Your body fat percentage,
from 5 photos.
Upload five physique photos and get an AI body fat estimate, plus muscle-by-muscle scores and weak points to train. Free to start, no tape measure or calipers needed.
The AI reads your whole body, not one measurement.
Instead of a single tape measurement or skinfold pinch, the model looks at pose landmarks and visual features across five angles of your physique: front relaxed, front flexed, side, back relaxed, and back flexed. It weighs shape, definition, and proportion across your whole body at once, then reports your result as a range rather than a false-precision decimal.
Already have a tape measure handy? Try the body fat calculator instead.
Pose landmarks
The model locates your joints and outline in each photo so it can judge proportion and shape consistently, the same way a coach's eye would.
Whole-body features
Muscle separation, vascularity, and softness across your abs, back, arms, and legs all feed the estimate, not just waist size like a tape measurement.
A range, not a point
You get a realistic range instead of a single decimal, which is a more honest reflection of what a photo can actually tell you.
An honest number: 3 to 5 points, not 1.
A photo based body fat estimate typically lands within about 3 to 5 percentage points of your true value. A DEXA scan, the clinical reference standard, is precise to roughly 1 to 2 percentage points under controlled conditions. No photo method matches that precision, and any tool that claims otherwise is overselling. What photo analysis offers instead is a free, repeatable read you can run every month without a clinic visit, which for tracking direction over time often matters more than a single precise reading. For the full breakdown of when each method makes sense, read AI physique analysis vs DEXA scan.
Photo AI, DEXA, tape, and calipers, side by side.
| Method | Cost | Accuracy | Repeatability | Convenience |
|---|---|---|---|---|
| Photo AI | Free | Range, within 3 to 5 points | High, same photos each time | Phone camera, 2 minutes |
| DEXA scan | $50 to $150 per scan | Within 1 to 2 points | Low, needs a clinic visit | Appointment required |
| Navy tape method (calculator) | Free | Sensitive to technique | Medium, depends on measurer | Tape measure, 5 minutes |
| Calipers | $10 to $30 for calipers | Sensitive to technique and site | Medium, depends on measurer | Practice needed |
Body fat from photos, explained.
- How does body fat estimation from photos work?
- The AI looks at pose landmarks and whole-body visual features across five photos (front relaxed, front flexed, side, back relaxed, back flexed), then compares what it sees against patterns learned from a large set of physiques with known body composition. It outputs a range rather than a single decimal point.
- How accurate is a photo body fat estimate compared to DEXA?
- Photo based estimates typically land within about 3 to 5 percentage points of your true value. A DEXA scan is precise to roughly 1 to 2 percentage points under controlled conditions. DEXA wins on precision for a single reading; photo analysis wins on being free and repeatable every month. Read the full comparison in AI physique analysis vs DEXA scan.
- What photos do I need to upload?
- Five photos: front relaxed, front flexed, side, back relaxed, and back flexed. Even lighting and a plain background help, but the AI is built to work with an ordinary phone camera in a bedroom or bathroom mirror.
- Is the body fat from photo estimate free?
- Yes. Uploading your five photos and getting your body fat range, muscle-by-muscle scores, and weak point breakdown is free to start.
- How does photo estimation compare to the tape method or calipers?
- The Navy tape method and skinfold calipers both measure a handful of points on your body and plug them into a formula, which makes them cheap but sensitive to measurement technique. Photo analysis reads your whole body at once, so it is less dependent on getting one or two spots exactly right, though none of these methods matches DEXA for absolute precision.
Get your estimate from 5 photos.
Free body fat range, muscle-by-muscle scores, and weak points to train, all from one upload.
Get your estimate from 5 photos