CB Calc for Business Fast math for small business decisions

Small-business unit economics toolkit

Business math for pricing, margins, growth, and break-even decisions.

Fast calculators for pricing, profit, CAC, LTV, ROI, CPM, and NPV.

Priority calculators

Margin Calculator Calculate gross profit, margin, and markup from selling price and cost. Markup Calculator Find selling price, profit, and resulting margin from cost and markup. Break-Even Calculator Calculate the units and revenue needed to break even. Profit Calculator Calculate gross profit, net profit, and margins from key business costs.

Calculator category

Pricing & Profit

Tools for pricing work, checking margins, and seeing how profit changes under different assumptions.

Margin Calculator Calculate gross profit, margin, and markup from selling price and cost. Markup Calculator Find selling price, profit, and resulting margin from cost and markup. Pricing Calculator Choose a selling price from cost and a target margin or markup. Profit Calculator Calculate gross profit, net profit, and margins from key business costs. Discount / Sale Price Calculator Calculate discount amount, sale price, and savings from an original price.

Which calculator should I use?

  • Margin Calculator: Use this when you know revenue and cost and want profit percentage plus markup.
  • Markup Calculator: Use this when you know cost and markup.
  • Pricing Calculator: Use this when you want to set a selling price from cost and a target percentage.
  • Break-Even Calculator: Use this when you want to know how many units you need to sell.
  • Contribution Margin Calculator: Use this when you want to understand profit contribution per unit.
  • Profit Calculator: Use this when you want gross profit, net profit, and margins in one place.
  • ROI Calculator: Use this when you want to compare investment return against investment cost.
  • Customer Acquisition Cost Calculator: Use this when you want to know how much it costs to get a customer.
  • Lifetime Value Calculator: Use this when you want to estimate customer value over time.

This calculator is for educational and planning purposes only. It does not replace professional financial, tax, accounting, or business advice.