| What it does | Free fitness calculators for strength, training, nutrition and body composition
| Free options calculators and trade analyzer that shows its assumptions
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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
| - Trade analyzer for single and multi-leg positions
- 58 strategy templates
- Black-Scholes-Merton Greeks calculator
- Scenario matrix across price and time
- Volatility labeled by source
- MarketData.app integration for option chains
- Browser-based position storage
- Shareable position links
- 20+ focused calculators
- Plain-English learning library
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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
| - Shows which numbers are exact arithmetic, which are estimates, and which come from user input
- No account required and positions stay in browser
- Never hides assumptions or pricing
- Server never sees user data or tokens
- Exact expiration payoff calculations
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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 | 7 ● no change since last check |
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| Trust Flow (Majestic) | 0 | 4 |
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| Citation Flow (Majestic) | 13 | 20 |
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| Referring domains (Majestic) | 1 | 9 |
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RepMaths
CallPutHub