Bulk or Cut Calculator - AI Body Fat Estimate in ~60 Seconds

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One shot. Face optional. Private by default.

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Estimated range informed by research.

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AI visualizes your ideal physique.

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Custom bulk/cut strategy. Track weekly progress.

AI ANALYSIS

Research‑informed

Under a minute

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Choose your method

AI photo analysis offers the most detailed insights. We also offer traditional methods backed by military and medical research.

Confidence:High

Most detailed insights and unlocks a tailored Bulk/Cut plan. Kept private to your account.

Good lighting, neutral stance
Face optional (you can blur or cover it)

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Research note: Many adults aim for WHtR < 0.5. See NICE guidelines.

FAQs

Which method is most accurate?

DEXA is a common reference in research. For frequent tracking, use one method under consistent conditions. Photo- and circumference-based methods can align with reference measures on average but have individual error; we show a range and recommend cross-checks.

How often should I measure?

Use lab-grade scans (e.g., DEXA) for occasional baselines. Between those checkpoints, stick to a weekly or biweekly method (Quick, Tape, or Photo) done the same way each time to watch trends.

What affects accuracy?

Hydration, time of day, food, training, lighting/pose (for photos), and tape placement. Measure at a consistent time and use averaged readings.

Is photo good enough?

For trend tracking and planning, photo estimation is fast and practical—especially with consistent lighting and stance. For a clinical baseline, use DEXA.

Is waist-to-height ratio better than BMI?

Waist-to-height ratio (WHtR) can reflect central adiposity and risk better than BMI in many groups. A common target is WHtR < 0.5. Use WHtR alongside BMI and photos for a fuller picture.

How accurate is the Navy body fat calculator?

The U.S. Navy circumference method is standardized and practical; accuracy depends on consistent tape landmarks and technique. Take two readings, average them, and track trends over time.

How accurate is an AI body fat calculator?

AI photo estimates can align with reference methods in controlled settings, but lighting, pose, and clothing matter. Treat it as one input; cross-check with WHtR or tape.

References & guidance

Related research and official guidance on common body composition methods.

AI photo analysis and DXA study — npj Digital Medicine (Nature, 2025)
Study in controlled settings on photo estimates vs DXA
U.S. Navy Body Composition Protocol — Military fitness standard (2025)
Official circumference method guidance
NICE Clinical Guidelines — UK National Health Service
Guidance on waist-to-height ratio cutoffs
Smartphone Camera Validation Study — NIH/PubMed Central (2022)
Mobile photo analysis studied against clinical measures

Choose your method

AI photo analysis offers the most detailed insights. We also offer traditional methods backed by military and medical research.

Confidence:High

Most detailed insights and unlocks a tailored Bulk/Cut plan. Kept private to your account.

Good lighting, neutral stance
Face optional (you can blur or cover it)

Upload Photo

Research note: Many adults aim for WHtR < 0.5. See NICE guidelines.

FAQs

Which method is most accurate?

How often should I measure?

Use lab-grade scans (e.g., DEXA) for occasional baselines. Between those checkpoints, stick to a weekly or biweekly method (Quick, Tape, or Photo) done the same way each time to watch trends.

What affects accuracy?

Hydration, time of day, food, training, lighting/pose (for photos), and tape placement. Measure at a consistent time and use averaged readings.

Is photo good enough?

For trend tracking and planning, photo estimation is fast and practical—especially with consistent lighting and stance. For a clinical baseline, use DEXA.

Is waist-to-height ratio better than BMI?

Waist-to-height ratio (WHtR) can reflect central adiposity and risk better than BMI in many groups. A common target is WHtR < 0.5. Use WHtR alongside BMI and photos for a fuller picture.

How accurate is the Navy body fat calculator?

The U.S. Navy circumference method is standardized and practical; accuracy depends on consistent tape landmarks and technique. Take two readings, average them, and track trends over time.

How accurate is an AI body fat calculator?

AI photo estimates can align with reference methods in controlled settings, but lighting, pose, and clothing matter. Treat it as one input; cross-check with WHtR or tape.

References & guidance

Related research and official guidance on common body composition methods.

AI photo analysis and DXA study — npj Digital Medicine (Nature, 2025)

Study in controlled settings on photo estimates vs DXA

U.S. Navy Body Composition Protocol — Military fitness standard (2025)

Official circumference method guidance

NICE Clinical Guidelines — UK National Health Service

Guidance on waist-to-height ratio cutoffs

Smartphone Camera Validation Study — NIH/PubMed Central (2022)

Mobile photo analysis studied against clinical measures

Stop guessing your body fat.
Know exactly when to bulk or cut.

Get clarity in seconds

Upload Photo

Get Your %

See Future You

Start Your Plan

Upload Photo

Get Your %

See Future You

Start Your Plan

Choose your method

From scan to results

Training That Adapts to You

Track Your Transformation

Still guessing if you
should bulk or cut?

FAQs

References & guidance

Stop guessing your body fat.
Know exactly when to bulk or cut.

Get clarity in seconds

Upload Photo

Get Your %

See Future You

Start Your Plan

Upload Photo

Get Your %

See Future You

Start Your Plan

Choose your method

From scan to results

Training That Adapts to You

Track Your Transformation

Still guessing if you
should bulk or cut?

FAQs

References & guidance

Get clarity in seconds

Upload Photo

Get Your %

See Future You

Start Your Plan

Upload Photo

Get Your %

See Future You

Start Your Plan

Choose your method

From scan to results

Training That Adapts to You

Track Your Transformation

Still guessing if youshould bulk or cut?

FAQs

References & guidance

Get clarity in seconds

Upload Photo

Get Your %

See Future You

Start Your Plan

Upload Photo

Get Your %

See Future You

Start Your Plan

Choose your method

From scan to results

Training That Adapts to You

Track Your Transformation

Still guessing if youshould bulk or cut?

FAQs

References & guidance

Still guessing if you
should bulk or cut?

Still guessing if you
should bulk or cut?