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Free Ecommerce Profit Tools for D2C Founders

5 calculators built specifically for Shopify and D2C brands. No signup, no email, no ads. Just the numbers you need to make better profit decisions.

check_circle100% free, no signup check_circleClient-side — your data never leaves your browser check_circleBuilt for D2C brands doing $2M–$10M revenue
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Profit Margin Calculator

Calculate gross margin, net margin, and profit per unit. Includes COGS, shipping, ad spend, payment fees, and fixed costs.

Gross margin % Net profit/unit Break-even units
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True ROAS Calculator

Find out if your ads are actually profitable. Calculates break-even ROAS, true ROAS after COGS, and real ad profit after all costs.

Break-even ROAS True ROAS Ad profit/loss
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Break-Even Calculator

Calculate how many units you need to sell to cover fixed costs and how many days at your current sales rate to reach profitability.

Break-even units Days to profit Contribution margin
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Shipping Cost Analyzer

Find out how much shipping is eating your profits and calculate the optimal free shipping threshold for your AOV and margins.

Shipping % of revenue Optimal threshold Annual shipping leak
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SKU Profitability Analyzer

Enter up to 10 SKUs and rank them by true profitability. Find money-losing products, see your Pareto distribution, and identify what to scale or kill.

SKU rankings Pareto analysis Money-loser alerts
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Want This For Your Whole Store?

These tools work on one product at a time. ProfitLeaksAI analyzes your entire Shopify catalog automatically — every SKU, every ad campaign, every cost.

  • checkAuto-connects to Shopify + ad platforms
  • checkReal-time profit leak detection
  • check7-day free trial, no credit card needed
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Why These Tools Exist

Most ecommerce analytics tools show revenue. We built these calculators for D2C founders who need to understand profit — which is a very different number.

Revenue ≠ Profit

A $5M/year Shopify store can be losing money. COGS, ad spend, shipping, returns, and platform fees stack up. These tools help you find the gap before it becomes a crisis.

ROAS is a vanity metric

A 4x ROAS can be unprofitable if your gross margin is 30%. True ROAS — after COGS, shipping, and fees — is the only ROAS number that matters. Our ROAS calculator shows you the real figure.

SKU-level blind spots

Blended store margins hide money-losing SKUs. When a product with high ad spend and high returns is averaged with your hero product, the loser becomes invisible. The SKU analyzer surfaces it.