Measure Height & Body Dimensions With Your Phone
BodyScan uses your smartphone camera, computer vision and measurement geometry to measure or estimate body dimensions in seconds.
Height and certain dimensions can be measured using camera geometry. Weight is estimated from body dimensions and is not directly measured by your phone.
How Does BodyScan Work?
BodyScan analyzes the position of body landmarks visible through your phone camera — including the head, shoulders, elbows, wrists, hips, knees, ankles and feet. By tracking where these points sit in the image, it can reason about the physical size of the body in front of the lens.
The measurement system combines several kinds of information: camera geometry, pose detection, the position of the floor, the distance to the camera, device orientation, and depth information when the device provides it. On phones with LiDAR or dedicated depth sensors, BodyScan can use richer depth data; on a standard camera, it falls back to pose geometry and produces a wider uncertainty range instead of failing.
This means accuracy varies by device. A depth-enhanced phone can produce a more confident height measurement, while a standard camera phone will still complete a scan but report lower confidence and a broader range. BodyScan never claims that every phone has the same sensors — it shows you the confidence so you can decide how much to trust each result.
Stand where the person's full body is visible from head to feet.
Computer vision identifies body landmarks and available spatial information.
BodyScan calculates measurements and displays confidence information.
What Can BodyScan Measure?
Camera geometry, floor to top of head
Body landmarks + geometry
Shoulder → elbow → wrist
Shoulder → hip landmarks
Pose geometry
Body model
Body model
Body model
AI/body-model prediction
Measurement classification can depend on the device and method. Estimated values use a body model and are shown with a likely range.
Measure Your Height With Your Phone
Height is one of the measurements BodyScan can derive most directly. The system looks for the floor to establish a base reference, then locates the top of the person's head — not simply the highest visible hair — using body landmarks and pose. The vertical distance between those two references is computed from camera geometry, and when depth information is available it sharpens the estimate.
To reduce error from a single frame, BodyScan can average several frames and reject unstable samples. The reported height is shown with a confidence score and, at lower confidence, a wider range that reflects the uncertainty rather than hiding it.
- Stand upright.
- Keep both feet flat on the floor.
- Make sure the entire body is visible.
- Use good lighting.
- Avoid extreme camera angles.
- Hold the phone steady.
Can a Phone Camera Measure Your Weight?
A smartphone camera cannot directly measure a person's weight the way a physical scale does. A camera senses light and shape, not the force your body exerts on the ground. BodyScan therefore reports an Estimated Weight rather than a measured one.
The estimation model considers available body dimensions and proportions — height, shoulder dimensions, torso dimensions, waist and hip dimensions, body silhouette and estimated body volume — and returns a likely range rather than a single exact figure.
Example values shown for illustration only; your results depend on your scan.
For an exact weight measurement, use a properly calibrated scale.
Measured vs. Estimated Body Measurements
| Measurement | Method | Typical Classification |
|---|---|---|
| Height | Camera/AR geometry | Measured |
| Shoulder Width | Body landmarks + geometry | Measured/Estimated (device) |
| Inseam | Pose geometry | Estimated |
| Waist | Body model | Estimated |
| Chest | Body model | Estimated |
| Hip Circumference | Body model | Estimated |
| Weight | AI/body-model prediction | Estimated |
Actual classification can depend on the device and measurement method.
How Accurate Is BodyScan?
BodyScan does not publish a single accuracy percentage, because accuracy depends heavily on conditions. Factors that affect every scan include camera quality, distance to the subject, lighting, camera angle, pose, floor detection, available depth sensors, loose clothing, body visibility and overall device capabilities.
Instead of a fixed tolerance, BodyScan assigns a confidence category to each scan:
Confidence indicates scan quality and model certainty. It does not guarantee that a measurement is within a particular number of inches or pounds.
How to Get a More Accurate BodyScan
- Use bright, even lighting.
- Make sure the entire body is visible.
- Stand against an uncluttered background when possible.
- Keep both feet visible.
- Avoid bulky coats.
- Hold the phone steady.
- Keep the camera reasonably level.
- Follow the distance guidance displayed by BodyScan.
- Use Precision Scan when available for measurements that benefit from multiple viewpoints.
BodyScan Technology
BodyScan combines computer vision, pose estimation, camera geometry, depth sensing, augmented reality and machine-learning estimation. Pose estimation finds body landmarks in the camera image; camera geometry and AR turn those pixel positions into real-world dimensions; depth sensing (where available) improves distance and volume estimates; and a machine-learning model estimates values that cannot be measured directly, such as weight.
Capabilities depend on the phone. BodyScan recognizes three device classes:
Phones with LiDAR or dedicated depth sensors. Richest data, highest confidence.
Phones supporting AR frameworks (ARKit/ARCore). Good geometry, moderate-to-high confidence.
Standard camera only. Runs scans using pose geometry with wider uncertainty ranges.
BodyScan does not claim specific accuracy figures until they are validated by testing.
BodyScan Privacy
BodyScan is designed to minimize unnecessary collection of camera data. Where supported, processing happens on-device. By default BodyScan keeps measurement data — body landmarks and dimensions — rather than photographs, and you can delete any scan at any time.
If temporary image processing is required for a particular feature, BodyScan discloses it accurately rather than claiming images are never uploaded. AI training consent is off by default.
Scanning Another Person
BodyScan should only be used to scan another person with their knowledge and consent. Before scanning someone else, BodyScan asks you to confirm:
Hidden or background scanning is not enabled and is not permitted.
What Can You Use BodyScan For?
BodyScan is not intended for medical diagnostic use.
BodyScan vs. Traditional Measurements
| Factor | BodyScan | Tape / Scale |
|---|---|---|
| Speed | Seconds | Manual, slower |
| Convenience | Phone only | Needs tools |
| Equipment | Your phone | Tape + scale |
| Repeatability | Confidence-based | High with care |
| Measurement types | Dimensions + estimates | Direct only |
| Limitations | Camera/pose accuracy | Needs a helper for some |
A physical tape measure or scale may remain more appropriate when precise measurements are required.
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BodyScan Frequently Asked Questions
Can a phone measure my height?
Yes, with caveats. BodyScan uses your phone camera and pose geometry to estimate the vertical distance from the floor to the top of your head. The result is a measurement derived from camera geometry rather than a physical ruler, and its accuracy depends on lighting, distance, camera angle and how much of your body is visible. BodyScan shows a confidence score so you can judge how much to trust the number.
Can a phone camera measure my weight?
No. A smartphone camera cannot directly measure weight the way a physical scale does — it has no way to sense the force your body exerts on the ground. BodyScan therefore reports an Estimated Weight, calculated from body dimensions and proportions, and shows a likely range rather than a single exact number.
How does BodyScan estimate weight?
BodyScan combines the dimensions it can measure or infer — height, shoulder width, torso length, waist and hip proportions, and overall body silhouette — and feeds them into an estimation model that returns a likely weight range. The estimate is only as good as the underlying measurements, which is why a confidence score is shown alongside it. For an exact weight, use a properly calibrated scale.
Do I need LiDAR to use BodyScan?
No. LiDAR and dedicated depth sensors improve accuracy on supported devices, but BodyScan is designed to work with a standard camera using pose detection and geometry. Depth-enhanced devices simply produce more confident measurements; a standard camera device still runs a scan with a wider uncertainty range.
Does BodyScan save my photos?
By default BodyScan stores body landmarks and measurements rather than photographs. You can delete any scan at any time. On supported devices, processing is designed to happen on-device where possible to minimize unnecessary data collection.
Is BodyScan a medical device?
No. BodyScan is an educational measurement and estimation tool. It is not a medical device, it is not FDA-approved, and its results are not medical advice. Consult a qualified professional for health or medical decisions.
Can BodyScan replace a scale?
No. BodyScan provides an estimated weight range, not a measured weight. A physical scale remains the right tool when you need an exact weight. BodyScan is most useful for body dimensions and tracking proportions over time.
What clothing should I wear during a scan?
Wear fitted clothing that follows the shape of your body and avoids hiding your natural silhouette. Avoid bulky coats, loose robes or thick layers, which can distort circumference and silhouette estimates. Make sure your arms and legs are visible and not hidden behind fabric.
Can I scan another person?
Yes, but only with their knowledge and consent. BodyScan requires you to confirm that the person knows they are being scanned and has agreed to it. Hidden or background scanning is not enabled and is not permitted.
Why does BodyScan show a confidence score?
The confidence score reflects scan quality and model certainty — factors like lighting, camera stability, body visibility and distance. A lower confidence means a wider result range. Confidence indicates how trustworthy the scan is, not a guarantee that a measurement falls within a specific number of inches or pounds.
Does BodyScan work on iPhone?
Yes. BodyScan runs in the browser on iPhone, and the native BodyScan app can use iPhone cameras and, on supported models, LiDAR for more accurate depth. Web-based scanning handles guidance, consent and results; full skeletal measurement runs in the native app.
Does BodyScan work on Android?
Yes. BodyScan runs in the browser on Android devices, and the native BodyScan app can use Android camera APIs and ARCore where available. As with iPhone, the browser experience guides you through the scan while the native app performs full pose and depth processing.
What is Precision Scan?
Precision Scan captures both a front and a side view to improve estimates of chest, waist, hip and body volume. It is a more involved scan that benefits from multiple viewpoints. Precision Scan is currently labeled Coming Soon while the multi-view pipeline is finalized.
Can BodyScan measure waist and inseam?
Waist is estimated from a body model rather than measured directly, and inseam is derived from pose geometry. Both are shown with confidence and a likely range. They are useful for clothing sizing and tracking trends, but a tape measure remains more precise for tailoring.
How can I improve measurement accuracy?
Use bright, even lighting; stand against an uncluttered background; keep your whole body visible from head to feet; hold the phone steady and reasonably level; wear fitted clothing; and follow the distance guidance BodyScan displays. When available, Precision Scan adds a second viewpoint for measurements that benefit from it.
Ready to Measure?
Use your phone camera to measure height and estimate body dimensions with BodyScan.
Web browsers cannot run on-device pose/AR tracking. This web experience handles consent, guidance and results; full skeletal scanning runs in the native BodyScan app. You can still start a Quick Scan to see the flow.