Free Calculators for Multichannel Sellers
Eight free calculators for the math sellers do every week: profit after fees, reorder points, order sizes, landed cost, ad break even, margins by channel, turnover and stock cover. They run in your browser, need no sign up, and every result has a link you can share.
- Amazon FBA Profit Calculator
- Reorder Point and Safety Stock Calculator
- EOQ Calculator
- Inventory Turnover Calculator
- Landed Cost Calculator
- Break Even ACoS and ROAS Calculator
- Profit Margin and Markup Calculator
- Sell-Through Rate Calculator
Questions
- Are these calculators really free?
- Yes. There is no sign up, no email gate and no limit. They are free because they cover the everyday math behind the decisions Invechar helps you make for every SKU, and we would rather you see the math work than read about it.
- Do you store the numbers I type?
- No. Every calculation runs in your browser and your numbers are not sent to Invechar. A link you copy carries the inputs in its address, so only the people you share it with see them. We count which calculator was used, never what was typed into it.
- How is this different from Invechar itself?
- A calculator does the math for one product when you remember to check. Invechar works through the same questions for every SKU, refreshed every hour from your live sales, stock and costs, and turns what needs doing into Daily Tasks you approve, such as a purchase order or a price change.