Online Seller Tools
Calculate fees, optimise pricing, and protect your profits across multiple marketplaces.
Essential Calculators for Online Sellers
Selling online involves multiple fees, pricing strategies, and profit calculations. moneymargins’s online seller tools allow eBay, Amazon, Etsy, and other marketplace sellers to quickly determine fees, plan pricing, and manage profitability-all directly in your browser.
Marketplace Fee Calculators
Know exactly how much each sale costs. Use our fee calculators for eBay, Etsy, and Amazon FBA to estimate platform commissions, listing fees, and other deductions before you sell. Accurate fee calculation ensures you maintain healthy profit margins.
- eBay Fee Calculator (UK): Determine final fees for your listings, including final value fees and PayPal/checkout charges.
- Etsy Profit Calculator (UK): Calculate your revenue after Etsy transaction fees, payment processing, and production costs.
- Amazon FBA Fee Calculator: Estimate fulfillment, referral, and storage fees for each product.
Relevant guides:
Pricing, Discounts & Product Management
Setting the right price is crucial for maximizing profit while staying competitive. Our tools help you adjust bulk prices, calculate discounts, and forecast return on ad spend.
- Bulk Price Increase Calculator: Adjust multiple product prices simultaneously while maintaining margin.
- Break-Even Calculator: Understand the minimum sales volume needed to cover costs.
- ROAS Calculator: Track marketing return on ad spend to make informed advertising decisions.
- Discount & Bundle Calculators: Safely offer promotions and bundle deals without eroding profitability.
Helpful guides:
Who Benefits From These Tools
These calculators are valuable for:
- Small business owners selling on marketplaces like eBay, Etsy, and Amazon FBA
- Online sellers planning discounts, promotions, or bulk price changes
- Entrepreneurs tracking profitability and marketing ROI
- Anyone needing quick, accurate fee and pricing calculations without manual spreadsheets
Start with any of the calculators above to instantly see your fees, margins, and profit projections. All tools run in-browser for speed, privacy, and convenience.