Free tools

Free Amazon FBA calculators — no account needed

Ten standalone tools covering fees, profit, PPC, cash flow, compliance, and inventory. Use any of them for free. Upgrade to GildLaunch Pro to connect them into a single launch plan.

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FBA Fee Estimator

Enter dimensions, weight, and category to see your exact FBA fulfillment and referral fees, net payout per unit, and size tier.

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Profit Margin Calculator

Calculate gross margin, net margin after FBA fees, ROI, and monthly profit estimate from selling price and landed cost.

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Break-Even ACOS Calculator

Find your break-even ACOS, check whether your target PPC spend is profitable, and estimate a safe daily budget.

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Launch Budget Lite

See total cash needed to launch — inventory, PPC reserve, and buffer — from order size, unit cost, and pricing.

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Cash Gap Preview

Visualize a simplified 6-month cash curve and funding gap alert from order units, unit cost, and monthly sales.

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Compliance Risk Checker

Enter a product keyword to see restriction level, whether approval is required, estimated certifications, and cert cost range.

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Reorder Date Calculator

Enter current stock, daily sales, and supplier lead time to get your reorder-by date, stockout date, and safety stock days.

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MOQ Cash Impact

See total order cost, deposit required, whether your available cash covers the MOQ, and monthly burn until revenue.

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PPC Budget Planner Lite

Enter target units per day, selling price, and estimated ACOS to get recommended daily budget, monthly spend, and sustainability check.

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Beginner Category Finder

Browse Amazon FBA categories ranked by beginner score — no approval required, low certification cost, manageable complexity.

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Connect every tool into one launch plan

GildLaunch Pro links your fee estimates, profit model, budget, cash gap, and compliance checklist to a single product record — so nothing gets lost between tabs.

See Pro plans →