E-commerce Break-Even Calculator

Pick your channel (Shopify, Amazon, Etsy, eBay, Walmart, TikTok Shop, custom). Enter price, COGS, shipping, returns, and CAC. Get per-order contribution math, monthly break-even units, and profit at sample volumes — including non-refunded fees on returns and restocking write-offs.

What this tool does

• 11 channel presets with current 2024 fee structures (incl. Amazon's 20% non-refunded referral)
• Per-order math breakdown: every cost line and margin %
• Returns modeling: rate, return shipping, restocking recovery, non-refunded fees
• Break-even units + revenue + profit at 100/500/1k/2.5k/5k/10k volumes
• Return rate and CAC benchmarks by category and channel
• Red flags: thin margin, CAC > 50% of price, high return rates, hidden costs

e-commerce shopify amazon etsy break-even unit economics CAC contribution margin

About Help Toolz

Help Toolz is a collection of free browser tools that solve real problems without signup walls, ad-stuffed listicles, or affiliate-link articles. Every tool runs entirely in your browser — your inputs never leave your device.

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