| What it does | Free transparent peptide calculator for reconstitution, dose, and U-100 syringe unit conversions
| 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 | CN
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| Pricing model | Free
| Free
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| Pricing | Not given
| Not given
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| Key features | - Transparent formulas showing all calculations
- Live results that update as you type
- Reverse dose check to verify prepared solutions
- U-100 visual guide for syringe capacity comparison
- Input warnings for common entry mistakes
- Support for mcg and mg units
- Private anonymous calculation without sign-up
- Optional private dashboard for saving results
| - 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 | - Shows intermediate formulas and steps so users can inspect the math instead of trusting a black box
- No hidden dose recommendations, medical claims, or sponsored links
- Fast anonymous calculation with optional private saving and no paid plans or advertising
| - 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) | 1 ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 2 | 0 |
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| Citation Flow (Majestic) | 21 | 0 |
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| Referring domains (Majestic) | 14 | 0 |
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Peptide Calculator
Metriova