| What it does | Free fitness calculators for strength, training, nutrition and body composition
| Free 3D body shape tool from height, weight, and measurements
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
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| Pricing model | Free
| Free
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| Pricing | Not given
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| Key features | - One-rep max estimation from weight and reps
- Bench press, squat, deadlift and overhead press max calculators
- 5/3/1 training cycle generator
- TDEE and BMR calculators
- Macro and protein intake calculators
- Body fat percentage estimation using US Navy method
- Barbell plate loading calculator
- RPE and RIR conversion chart
- Calorie deficit and weight loss timeline calculator
- Warm-up set generator
| - 3D body shape preview from height, weight, and optional measurements
- Current and goal silhouette comparison
- BMI, waist-to-height ratio, and waist-to-hip ratio calculations
- No photo upload required
- Metric and imperial unit support
- Rotate and zoom 3D model preview
- Estimated body fat percentage calculation
- Separate tools for BMI, height comparison, weight simulation
- Waist, hip, chest, inseam, and shoulder measurement inputs
- No account or personal profile required
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| What makes it different | - All formulas and sources cited on every page
- No sign-up required to use calculators
- Built on established, peer-referenced formulas from fitness and sports nutrition literature
- Works in both pounds and kilograms
- Built by a lifter
| - No photo upload or signup required
- Completely free to use
- Measurements not stored or tracked
- Works entirely in browser without scans or wearables
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | Not checked yet ● no change since last check | 17 ● no change since last check |
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| Trust Flow (Majestic) | 0 | 5 |
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| Citation Flow (Majestic) | 13 | 29 |
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| Referring domains (Majestic) | 1 | 112 |
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RepMaths
Body Visualizer