Adjusted Body Weight Calculator

Calculate IBW, AdjBW, and percent-of-IBW for dosing context.

Age Guesser

Estimate how old you look from a face photo with AI age range and confidence.

Ape Index Calculator

Calculate wingspan-to-height ratio and wingspan-height reach difference.

Army Body Fat Calculator

Estimate body fat % using the US Army tape method.

Attractiveness Test

Upload a portrait to get an AI attractiveness score with confidence bands and interpretation table.

BAI Calculator

Estimate body adiposity from hip circumference and height.

BMI Calculator

Calculate BMI and view adult category ranges by height and weight.

BMR Calculator

Estimate basal metabolic rate from standard resting-energy equations.

Body Fat Calculator

Estimate body fat % from measurements and formulas.

Body Fat Estimator

Estimate your body fat % from a photo.

Body Frame Size Calculator

Estimate frame size from height and wrist ratio.

Body Shape Analyzer

Upload a photo and analyze your visual body type.

Body Shape Calculator

Estimate your body-shape category from bust/chest, waist, and hip measurements.

Body Visualizer

Visualize body shape from BMI, body fat %, height, and weight.

Bodybuilding Genetics Calculator

Estimate a modelled bodybuilding genetics score from structure and FFMI-based potential.

BRI Calculator

Estimate body roundness from waist and height.

Broca Index Calculator

Compare current weight against classic Broca height-based reference.

Calorie Calculator

Estimate how many calories you need for maintenance, fat loss, or lean gain.

Calorie Deficit Calculator

Calculate deficit targets and daily calories from your selected weekly pace.

Calorie Scanner

Estimate meal calories from a photo with AI and confidence ranges.

Calories Burned Calculator

Estimate calories burned for many activities using MET-based exercise energy equations.

Casey Butt Calculator

Estimate frame-based bodybuilding potential from height, wrist, and ankle measures.

Eye Shape Detector

Detect eye shape, canthal tilt, and eye color from a portrait with AI.

Eyebrow Type Detector

Upload a portrait to detect eyebrow type with confidence and grooming interpretation.

Face Shape Detector

Upload a portrait to detect your face shape with AI and confidence scoring.

Face Symmetry Test

Upload a face photo to estimate symmetry score and compare mirrored facial halves.

Fasting Weight Loss Calculator

Project weight change from fasting-day and feeding-day calorie patterns.

FFMI Calculator

How much of you is muscle?

Golden Face Ratio Analyzer

Upload a portrait for AI golden-ratio facial analysis and use the on-page manual calculator.

Hair Color Detector

Detect hair color, undertone, and depth from a portrait with AI confidence scoring.

Hair Type Detector

Detect likely hair type (1A-4C), curl family, and care-direction context from a portrait with AI.

Height Calculator

Estimate family-based height prediction, potential range, and target probability.

Height Estimator

Estimate apparent adult height from a full-body photo with confidence and range context.

Ideal Waist Size Calculator

Estimate ideal waist-size targets from height and ratio-based planning bands.

Ideal Weight Calculator

Compare healthy BMI range and Devine ideal body weight.

Intermittent Fasting Calculator

Estimate fasting-protocol calorie intake, daily expenditure, and weekly pace.

Jawline Check

Upload a side-profile photo to estimate jawline angle and classify jawline type with AI.

Lean Body Mass Calculator

Estimate your lean mass with standard equations.

Macro Calculator

Set protein, carb, and fat gram targets from calorie goals and macro split presets.

Mid-Parental Height Calculator

Calculate target adult height from parent heights with the standard mid-parental method.

Muscle Mass Calculator

Estimate skeletal muscle mass from anthropometric measurements.

Muscular Potential Calculator

Estimate modelled natural lean-mass potential from frame-adjusted FFMI limits.

Natty or Not Calculator

Compare your frame-adjusted FFMI against common natural muscularity ceilings.

Nose Shape Detector

Detect nose shape, bridge profile, and tip direction from a portrait with AI.

Overweight Calculator

Check BMI category and estimate weight above the healthy range.

Ponderal Index Calculator

Calculate ponderal index and compare with BMI-equivalent ranges.

RFM Calculator

Estimate body fat from height and waist.

Shoulder to Waist Ratio Calculator

Calculate shoulder-to-waist taper ratio from circumference measurements.

Skin Analyzer

Analyze skin type, tone depth, undertone, and care-direction context from a portrait with AI.

Skinfold Body Fat Calculator

Estimate body fat % from 3-site skinfold caliper measurements.

Steps to Calories Calculator

Estimate calories burned from steps using stride, body weight, and walking pace.

TDEE Calculator

Estimate total daily energy expenditure from BMR equation and activity level.

Visceral Fat Calculator

Estimate visceral fat area from body measurements.

Waist to Height Ratio Calculator

Assess waist-to-height ratio against central-fat risk screening thresholds.

Waist to Hip Ratio Calculator

Assess waist-to-hip ratio with sex-specific central-fat risk thresholds.

Weight Loss Calculator

Estimate timeline to target weight with adaptive energy-balance math.

Weight Loss Percentage Calculator

Calculate percentage change from starting to current weight.