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100% free business calculator platform for entrepreneurs, small businesses, and founders worldwide. Model margins, pricing, unit economics, and growth metrics in seconds.

Cash Flow

  • Cash Flow Calculator
  • Cash Flow Forecast Generator
  • Startup Budget Calculator

Finance & Sales

  • Profit Calculator
  • Profit Margin Calculator
  • Cash Flow Forecast Generator
  • Break-even Calculator
  • Sales Target Calculator
  • Lead Calculator
  • Conversion Rate Calculator
  • Customer Lifetime Value (LTV) Calculator

Marketing & Planning

  • Product Pricing Calculator
  • Markup Calculator
  • Discount Calculator
  • ROAS Calculator
  • Break-even ROAS Calculator
  • Customer Acquisition Cost (CAC) Calculator

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  • Business Guides
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Ecommerce Profit Calculator

Calculate monthly online store net profit after product COGS, shipping, ad CPA, gateway fees, and returns.

Store Order Economics & Overhead Inputs

Model your per-order revenue, fulfillment costs, payment fees, returns, and CPA to see true store profit.

1. Order Volume & Direct COGS

2. Platform Fees, Returns, Ads & Overhead

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What if your Customer Acquisition Cost (CPA) changes?

Simulate lower CPA from email/SMS retention or higher CPA during Q4 ad auctions.

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-50%Base (0%)+50%

Store Profitability Summary

Monthly Net Profit

BDT 6,426.00

24.7% net margin on BDT 26,000 monthly gross sales

Net Profit Per Order

BDT 16.06

After COGS, fees, returns, CPA & overhead

Contribution Margin / Order

BDT 34.07

Profit per order before ad spend & overhead

Monthly Ad Spend

BDT 6,000

Blended ROAS: 4.33x

Net Profit Margin

24.7%

After BDT 1,300 refund loss

Smart Insights

  • Store Operating Profitably: Your store nets BDT 6,426.00 per month (24.7% net margin), keeping BDT 16.06 per order after COGS, fulfillment, returns, CPA, and fixed overhead.
  • Maximum Allowable CPA Guardrail: Before fixed store overhead, your unit contribution margin is BDT 34.07 per order. Keep your blended CPA well below BDT 34.07 to remain profitable.

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Estimates only, not financial advice: All figures produced by Threeaid are mathematical estimates based on your inputs. They should not replace professional accounting, tax, or legal counsel.