| What it does | Free ecommerce calculators for profit margin, CAC, LTV, pricing, Shopify fees, and more
| Project retirement savings in a Roth IRA versus a simplified taxable account
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| Pricing model | Free
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| Key features | - Profit Margin Calculator to calculate profit after all costs and fees
- CAC Calculator to measure customer acquisition cost
- LTV Calculator to understand customer lifetime value and LTV:CAC ratio
- Pricing Calculator to work backwards from target margin to set price
- Shopify Fees Calculator showing exact fees across all plans and payment methods
- Refund Impact Calculator to quantify profit erosion from refunds
- Ad Metrics Calculator for ROAS, CPC, CTR, and cost per conversion
- Product Viability Calculator with YES/MAYBE/NO verdict
- Support for multiple currencies including USD, EUR, GBP, and CZK
| - Year-by-year balance projections with growth and tax tracking
- Contribution timing selector for beginning or end of year
- Detailed comparison table showing Roth advantage over taxable account
- Balance accumulation graph by age
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| What makes it different | - Completely free with no premium tiers, feature locks, or trial periods
- No account creation required, no data stored on servers
- Formulas follow standard ecommerce accounting with Shopify fees kept up to date
- Works for any ecommerce platform with manual fee fields for Amazon, Etsy, WooCommerce, TikTok Shop
- No signup requirement or data tracking beyond basic anonymous analytics
| - Compares tax-deferred growth in Roth versus tax-drag in taxable accounts under identical contributions
- Transparent calculation methodology with disclosed assumptions and limitations
- Separates contribution principal from modeled growth in results
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 7 ▲ +1 (up) since last check | 53 ● no change since last check |
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| Trust Flow (Majestic) | 3 | 10 |
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| Citation Flow (Majestic) | 15 | 29 |
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| Referring domains (Majestic) | 14 | 80 |
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EcomCalc
Roth IRA Calculator