Free Ecommerce & Online Selling Calculators

Calculate profit margins, marketplace fees, shipping costs, and marketing ROI Calculate pricing, margins, and shipping costs — all for free. No signup, no guesswork.

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Pricing & Margins

Product pricing, profit margins, markup calculations, wholesale pricing, bundle discounts, and subscription box pricing calculators.

8 calculators

Marketplace Fees & Shipping

Amazon FBA fees, Shopify costs, eBay and Etsy seller fees, shipping cost estimators, and dropshipping profit calculators.

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Marketing & Growth

ROAS, customer acquisition cost, lifetime value, conversion rates, email marketing ROI, and cart abandonment cost calculators.

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Business Operations

Break-even analysis, inventory costs, revenue forecasting, sales tax, average order value, return rate impact, and cash flow calculators.

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Popular Calculators

Product Pricing Calculator

Calculate your sell price from cost and markup percentage, and see profit per unit.

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Profit Margin Calculator

Calculate gross profit margin, net profit margin, and profit in dollars from your revenue and costs.

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Markup vs Margin Converter

Convert between markup percentage and margin percentage instantly — and understand why they are not the same number.

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Dynamic Pricing Calculator

Calculate optimal price adjustments based on price elasticity of demand and see projected revenue impact.

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Discount Impact Calculator

See exactly how discounts affect your profit margin — not just revenue — and calculate how many extra units you must sell to break even after a discount.

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Amazon FBA Fee Calculator

Calculate Amazon FBA fees including referral fee and fulfillment fee to find your net profit.

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Shopify Profit Calculator

Calculate monthly profit for your Shopify store after plan fees, payment processing, and product costs.

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Dropshipping Profit Calculator

Calculate dropshipping profit per order after supplier cost, platform fees, and advertising spend.

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ROAS Calculator

Calculate return on ad spend to measure advertising effectiveness.

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Customer Lifetime Value Calculator

Calculate the total revenue a customer generates over their relationship with your store.

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