| What it does | Free fitness calculators for strength, training, nutrition and body composition
| Free online pressure converter between kilopascals and pounds per square inch
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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
| - Live pressure converter with bidirectional conversion between kPa and PSI
- Instant automatic calculation as you type
- Educational content explaining conversion formulas and pressure units
- Common conversion tables and examples
- Clear explanations of PSI and kPa differences
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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
| - Accuracy checked against NIST and BIPM standards
- Completely free with no account or credits required
- Created by a Graduate Civil Engineer with technical expertise
- Focuses on helping users understand the calculations, not just conversion results
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| Community votes | 0 | 0 |
| DR (Domain Rating by Ahrefs) | Not checked yet ● no change since last check | 7 ● no change since last check |
| Trust Flow (Majestic) | 0 | 4 |
| Citation Flow (Majestic) | 13 | 13 |
| Referring domains (Majestic) | 1 | 11 |