E-COMMERCE TOOLS
Free E-commerce Profit & Pricing Calculators
Real math for online sellers — 40 tools across fees, ROI, inventory, pricing, and growth. Built with current 2026 fee schedules. No signups, runs in your browser.
ComparisonsAnalyzersPlannersChecklistsCalculators
Fees
8 tools
Amazon FBA, Shopify, Etsy, TikTok Shop, Stripe, PayPal — what you actually net.
ROI
10 tools
CAC, LTV, ROAS, email, UGC — which dollar works hardest.
Inventory
7 tools
COGS, turnover, reorder points, packaging, break-even math.
Pricing
8 tools
Margins, bundles, wholesale, free-shipping thresholds, tariffs.
Growth
7 tools
Conversion, churn, holiday planning, creative fatigue, repeat rate.
Fees
Fees tools
8 tools
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Amazon FBA Fees
All-in FBA fees: referral, fulfillment, storage, returns — what you actually net.
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Shopify Cost
Monthly Shopify cost by plan + transaction fees based on volume.
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Etsy Fees
All-in Etsy fees including listing, transaction, processing, and Offsite Ads.
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TikTok Shop Fees
Real TikTok Shop payout after referral fees, affiliate commissions, and returns.
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Walmart Marketplace
Walmart Marketplace seller fees by category — referral, WFS fulfillment, and net margin.
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Stripe Fees
Stripe processing fees per transaction and annually — including international cards.
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PayPal Fees
PayPal fees by transaction type — goods/services, micropayments, and cross-border.
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ComparisonShipping Cost Compare
USPS, UPS, FedEx, DHL side-by-side — find the cheapest carrier by weight and zone.
ROI
ROI tools
10 tools
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ROAS
Return on ad spend + breakeven ROAS calculation for any margin structure.
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CAC
Blended CAC, paid CAC, and ratio to LTV for sustainable growth.
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LTV
Customer lifetime value using AOV, purchase frequency, and retention.
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Email ROI
Revenue, profit, and ROI per dollar spent on email marketing tooling.
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Abandon Cart ROI
Revenue recoverable from abandoned cart email sequences by open rate, CTR, and recovery.
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Photography ROI
Break-even math on investing in professional product photography.
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UGC Creator ROI
ROI on UGC creator partnerships — per-asset cost, usage rights, and performance lift.
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ChecklistShopify Plus Readiness
Checklist: is Shopify Plus worth it? Revenue thresholds, feature needs, and payback.
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Affiliate Commission
Right affiliate commission rate given your margin, LTV, and repeat purchase rate.
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AnalyzerReturn Rate Analyzer
Profit impact of returns — reverse logistics, writeoffs, markdowns by category.
Inventory
Inventory tools
7 tools
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Inventory Turnover
Turnover ratio + days-on-hand — healthy ecommerce is 4-6 turns/year.
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Reorder Point
When to reorder inventory based on lead time demand and safety stock.
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COGS per SKU
All-in COGS per SKU — unit cost, freight, duty, packaging, and labor.
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Packaging Cost
All-in packaging cost per order: box, filler, label, insert, branded tissue.
⚖️
Break-Even Units
Units you need to sell to cover fixed costs, given your contribution margin.
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Variable Cost/Order
Total variable cost per order — COGS, pick-pack, shipping, payment fees, returns.
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Dropshipping Margin
Real dropshipping margin after supplier cost, ad spend, Shopify, and returns.
Pricing
Pricing tools
8 tools
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Profit Margin
Three margin views — gross, contribution, and net — on any product or line.
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Product Pricing
Recommended selling price based on target margin, with competitor spread analysis.
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PlannerBundle Strategy Planner
Plan bundle discounts that lift AOV without cannibalizing full-price sales.
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Wholesale Markup
Wholesale to MSRP markup using the standard 2x keystone rule plus alternates.
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Wholesale Breakeven
Units required at wholesale pricing to match DTC profit on the same product.
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Subscription Box Pricing
Recommended subscription box price based on COGS, packaging, shipping, and target margin.
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Tariff Cost Impact
How US import tariffs affect landed cost, margin, and required price increase.
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Free Shipping Threshold
Find the free shipping threshold that lifts AOV without destroying margin.
Growth
Growth tools
7 tools
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Conversion Rate
Conversion rate from visitors to buyers with category benchmark comparison.
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Cart Abandonment Cost
Revenue being left on the table — with what a 5% recovery would add.
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PlannerQ4 Ad Calendar Planner
Plan Q4 holiday ad spend week by week by category, target ROAS, and revenue lift.
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AnalyzerCreative Fatigue Analyzer
When Meta or TikTok ad creative fatigues based on frequency and CTR decay.
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AnalyzerChurn Cohort Analyzer
Subscription churn rate, cohort decay curve, and MRR lost per month to churn.
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Repeat Purchase Rate
Repeat purchase rate and its impact on CAC payback and LTV.
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Gift Card Breakage
Revenue from unredeemed gift card balances (breakage) and when to recognize it.