| What it does | Calculate your Body Roundness Index instantly. Free, Fast, and Revealing.
| Free marketplace fee calculators for Etsy, eBay and Amazon FBA
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| Stage | Not given
| Startup
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| Founded | Not given
| 2025
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| Based in | Not given
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| Pricing model | Free
| Free
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| Pricing | Not given
| Not given
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| Key features | - Free calculation with no registration required
- Optional gender and age personalization
- Average BRI data by age and gender
- Interpretation guidance for results
- Detailed waist measurement instructions
- Comparison with BMI
- Health risk assessment based on BRI ranges
| - Etsy fee calculator with itemized fees and net payout
- eBay seller profit calculator with Final Value Fee calculation
- Amazon FBA profit calculator including fuel and logistics surcharge
- Poshmark fee calculator with $2.95 vs 20% comparison
- Mercari fee calculator with 10% flat fee calculation
- Depop fee calculator showing 0% seller fees
- Vinted fee calculator with buyer protection fee analysis
- Transparent formulas and variable explanations
- Rates verified from official seller fee schedules
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| What makes it different | - Uses waist circumference for more accurate body composition assessment than BMI
- Better at predicting cardiovascular health risks
- More sensitive to changes in body shape and fat distribution
- Provides accurate results for people with high muscle mass
| - Every fee itemized with true net payout and margin shown
- All calculations run client-side in browser with instant and private results
- Rates verified against official platform fee schedules
- No sign-up, no data collection, no paywalls
- Industry-standard formulas with transparent calculations
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 24 ▼ −1 (down) since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 7 | 0 |
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| Citation Flow (Majestic) | 18 | 0 |
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| Referring domains (Majestic) | 55 | 0 |
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BRI Calculator
Metriova