| What it does | Free online calculators for finance, health, dates, and everyday math
| Break-even ROAS calculator with tariff-aware landed cost for ecommerce
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
| HK
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| Pricing model | Free
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| Pricing | Not given
| Free: all eleven calculators unlimited, no account required. Pro: $19 per month or $190 per year (two months free).
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| Key features | - 19 calculators across health, finance, math and everyday categories
- Client-side calculations with no server data transmission
- Transparent formulas and calculation methodology
- Health calculators follow WHO and CDC standards
- Financial tools use standard industry formulas and current IRS tax brackets
- Fully responsive and works on desktop, tablet and smartphone
- No signup required or account creation needed
- Lightweight and fast with no tracking scripts
| - Tariff-aware break-even ROAS calculation including 2026 US import duties
- Scenario modeling for price and tariff rate changes
- Tariff alerts when policy rates change
- CSV export of SKU profiles
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| What makes it different | - All calculations run entirely in your browser with no data sent to servers
- Transparent formulas so you understand how results are calculated
- Health formulas endorsed by WHO and CDC standards
- Instant results with no loading screens or popups
| - Free tool with no signup required; all calculators stay free forever
- Tariff calculations verified and dated; rates sourced from official sources with HTS code accuracy
- Accounts for all hidden costs that platform ROAS does not include
- Flat monthly pricing with no per-order fees that scale with revenue
- Formulas fully transparent and printed in full; no proprietary model withheld
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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 | 1 ● no change since last check |
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| Trust Flow (Majestic) | 0 | 2 |
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| Citation Flow (Majestic) | 0 | 24 |
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| Referring domains (Majestic) | 0 | 9 |
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CalcDeep
RoasFloor