Free calculators with the working shown
CalcTools

7 free tools

Selling & Business calculators

Marketplace seller fees, profit margin and markup, and shipping dimensional weight for online sellers and small businesses. Each tool shows the formula, worked examples and sources.

Selling & BusinessDimensional Weight CalculatorDimensional (DIM) weight and billable weight for UPS, FedEx and USPS packages, or metric couriers, with the USPS 1 cubic foot rule.Selling & BusinesseBay Fee CalculatoreBay final value fees, per-order fee and net profit for any sale, including trading cards, with break-even price and the price for a target profit.Selling & BusinessEtsy Fee CalculatorEtsy fees and profit for any sale: listing, transaction and payment processing fees, Offsite Ads, break-even price and the price for a target profit.Selling & BusinessMercari Fee CalculatorMercari selling fee and profit: 10% of the item price plus buyer-paid shipping, with break-even price and the price for a target profit.Selling & BusinessPoshmark Fee CalculatorPoshmark earnings and profit after the $2.95 or 20% commission, with break-even price and the price for a target profit.Selling & BusinessProfit Margin CalculatorProfit margin and markup from cost and price, or the selling price for a target margin or markup.Selling & BusinessSeller Fee CalculatorCompare seller fees, payout and net profit on Etsy, eBay, Poshmark, Mercari or any marketplace, with break-even price.