Tools

Train smarter,
starting free.

Calculators and AI tools for training, nutrition, and physique tracking. Most are free with no signup. The rest start free.

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AI Tools

AI tool

Body Fat From Photo

Estimate your body fat percentage from photos with AI, and see how it compares to DEXA.

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AI tool

AI Physique Rater

The full analysis: upload 5 photos for a body fat estimate, muscle-by-muscle scores, and your weak points.

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AI tool

AI Form Check

Upload a lift and get rep-by-rep technique scoring across 15 exercises.

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Free AI tool

Instant Physique Score

Upload one photo and get an instant score out of 10, an abs verdict, and your body fat range. No account.

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Free AI tool

AI Physique Roast

Upload one photo and get roasted by AI: a gym nickname, a brutal roast, and one tip that actually helps.

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Free AI tool

AI Meal Scanner

Snap your plate and get an honest calorie range, macros, a protein verdict, and one smart swap.

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Free AI tool

AI Future Physique

Upload one photo, pick a goal, and see a realistic AI preview of your physique after the work is done.

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Free AI tool

Rate My Workout Routine

Paste your split and get an honest AI review: a score, weekly sets per muscle, and the one fix that matters.

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Free AI tool

Compare Physiques

Two photos, one verdict on the better-developed physique: muscle, proportions, conditioning and symmetry.

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Free AI tool

Free AI Form Check

Film one short set and get your rep count, your top two form faults and one cue to fix them.

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Body Composition

Free tool

FFMI Calculator

Measure how muscular you are for your height and how close you are to the natural ceiling.

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Free tool

Body Fat Calculator

Estimate your body fat percentage and lean mass with the free US Navy tape method.

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Free tool

Bulk or Cut

Answer four questions and get a clear bulk, cut, or recomposition verdict with reasoning.

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Free tool

Body Fat Visualizer

See what every body fat percentage looks like on the same body, from 4% to 40%, by sex and age.

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Free tool

Lean Body Mass Calculator

Split your weight into lean mass and fat mass, from your body fat percentage or the Boer formula.

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Free tool

Six Pack Timeline

How many weeks to visible abs at your pace, with the date on the calendar.

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Free tool

Progress Photo Compare

Side by side, wipe, and ghost views for two progress photos, plus an optional AI read of what changed.

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Free tool

Body Visualizer

Enter height and weight to see an illustrative silhouette, your BMI, and the healthy weight range.

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Free tool

BMI Calculator for Lifters

Your BMI and healthy weight range, with body fat and FFMI to show whether a high BMI is muscle or fat.

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Nutrition & Energy

Free tool

TDEE & Macro Calculator

Find your maintenance calories and goal-based macro targets in seconds. Free, no signup.

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Free tool

Macro Meal Plan Generator

Enter your daily calories and get protein, carb, and fat targets split across 3 to 5 meals.

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Free tool

Calorie Deficit Calculator

Pick a pace and get your daily calorie target, weeks to goal, and milestone dates.

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Free tool

Macro Calculator

Protein, carb, and fat targets calibrated to your calories, goal, and protein level.

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Free tool

Calories Burned

Search dozens of activities and get calories burned from your weight and duration.

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Free tool

Protein Calculator

Your daily protein as a range in grams for your weight and goal, split per meal with real food amounts.

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Performance

Free tool

One Rep Max Calculator

Estimate your 1RM from any set and get a full percentage table of working weights.

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Free tool

Workout Plan Generator

Answer four questions and get a complete weekly training plan with exercises, sets, and reps.

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Free tool

Strength Standards

Eight lifts benchmarked from untrained to elite. See where your numbers land for your body weight.

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Free tool

Who Is Stronger?

Compare your lifts with a gym mate relative to bodyweight and see who is stronger, lift by lift.

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Free tool

Plate Calculator

Type a target weight and see exactly which plates go on each side of the bar, in kg or lb.

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Free tool

Warm-Up Sets Calculator

Your warm-up ramp to the working weight, with reps and the plates to load for every set.

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Free tool

Exercise Substitution

Pick any exercise and the equipment you have, and get the closest alternatives for the same muscles.

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Recipe Generator

Turn your macros into personalized recipes matched to your goal and tastes.

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Reference

Exercise Library

160+ exercises with form instructions, muscles worked, and pro cues. Free to browse.

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Reading

Fitness Blog

Evidence-based guides on training, nutrition, body composition, and recovery.

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Daily game

Daily Rep: The Daily Gym Quiz

Three gym numbers a day, scored by how many times off you are. A new quiz every day.

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Your physique, scored.

Five photos. Two minutes. A full breakdown of what to train next.

Rate my physique

Train smarter,starting free.

Body Fat From Photo

AI Physique Rater

AI Form Check

Instant Physique Score

AI Physique Roast

AI Meal Scanner

AI Future Physique

Rate My Workout Routine

Compare Physiques

Free AI Form Check

FFMI Calculator

Body Fat Calculator

Bulk or Cut

Body Fat Visualizer

Lean Body Mass Calculator

Six Pack Timeline

Progress Photo Compare

Body Visualizer

BMI Calculator for Lifters

TDEE & Macro Calculator

Macro Meal Plan Generator

Calorie Deficit Calculator

Macro Calculator

Calories Burned

Protein Calculator

One Rep Max Calculator

Workout Plan Generator

Strength Standards

Who Is Stronger?

Plate Calculator

Warm-Up Sets Calculator

Exercise Substitution

Recipe Generator

Exercise Library

Fitness Blog

Daily Rep: The Daily Gym Quiz

Your physique, scored.

Train smarter,
starting free.