Business & selling calculators
Seller and payment fees, ad returns, conversion, churn, customer value and inventory.
- Churn Rate CalculatorCalculate customer churn and retention for a month or year, the annualized churn rate, and how long the average customer stays.
- Conversion Rate CalculatorCalculate your website or ad conversion rate, revenue per visitor, and how many more sales a higher conversion rate would bring.
- Customer Lifetime Value CalculatorEstimate customer lifetime value (CLV or LTV) from order value, purchase frequency, margin and how long customers stay, and compare it with what you pay to win them.
- eBay Fee CalculatorCalculate eBay selling fees: sale price, shipping, and final value fee %. See what you receive after fees.
- Etsy Fee CalculatorCalculate Etsy listing ($0.20) and transaction (6.5%) fees. Enter price, quantity, and shipping to see your net and total fees.
- Inventory Turnover CalculatorCalculate how many times you sell through your inventory in a year and how many days stock sits on the shelf, from cost of goods sold and inventory levels.
- PayPal Fee CalculatorWork out the PayPal fee on a payment, what you receive, and how much to charge so you get the full amount after fees.
- ROAS CalculatorCalculate return on ad spend, your break-even ROAS from your profit margin, and whether a campaign is actually making money.
- Stripe Fee CalculatorWork out the Stripe fee on a payment, what you receive, and how much to charge so you get the full amount after fees.
Estimate fees for selling on Etsy, eBay, and other marketplaces. Enter your sale price, shipping, and (where applicable) category or listing details to see what you receive after platform and transaction fees. Helps you set prices and understand net earnings.
Who they're for: Sellers on Etsy, eBay, and similar platforms who want to know their take-home before listing or after a sale. Fee structures vary by site and category; these tools use typical rates that you can adjust to match your account.
Common use cases: Calculating Etsy listing and transaction fees on an item plus shipping, estimating eBay final value fees by category, and comparing net proceeds across different price points or platforms. Always check the current fee schedule on the marketplace; rates can change.