| What it does | Free fitness calculators for strength, training, nutrition and body composition
| 200+ free online calculators for finance, health, math, and more with no sign-up required
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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
| - Finance calculators including loans, taxes, investments, and budgeting
- Health calculators for BMI, calories, pregnancy, and wellness
- Education and GPA calculators for university graders and exam scores
- Construction and materials calculators for concrete, lumber, and costs
- No sign-up required to use any calculator
- Clear inputs and results with estimates labeled
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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
| - Over 200 free calculators in one place
- Always free with no account or sign-up needed
- Organized by category for easy navigation
- Built and maintained by one person with AI assistance
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| Community votes | 0 | 0 |
| DR (Domain Rating by Ahrefs) | Not checked yet ▼ −1 (down) since last check | 8 ● no change since last check |
| Trust Flow (Majestic) | 0 | 5 |
| Citation Flow (Majestic) | 13 | 20 |
| Referring domains (Majestic) | 1 | 7 |