| What it does | Free fitness calculators for strength, training, nutrition and body composition
| Unlimited web calculators powered by AI
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| Stage | 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
| - AI-powered calculator generation in real-time
- Thousands of ready-to-use calculators
- Search and discovery by name or topic
- Error-free calculations reviewed by AI
- Local browser-based computation for privacy
- Multiple calculator categories including health, finance and math
- Responsive design for any device
- No paywalls or usage limits
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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
| - AI generates custom calculators in seconds based on user descriptions
- All calculators run locally in your browser for data privacy
- Continuously growing unlimited collection with no paywalls
- AI-powered tools adapt to specific user needs through reasoning
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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 | 28 ● no change since last check |
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| Trust Flow (Majestic) | 0 | 6 |
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| Citation Flow (Majestic) | 13 | 34 |
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| Referring domains (Majestic) | 1 | 472 |
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RepMaths
isCalculator