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Free Small Business Tools

Practical calculators and planning tools to help you make clearer business decisions.

  • Free to use
  • No account required
  • Local calculations when applicable

Available now

Four tools for common small-business decisions

Use a focused calculator, understand the method, and carry the result into a better planning conversation.

Planning Tool

Website Cost Estimator

Estimate your website project’s likely scope, complexity, planning range, ongoing costs, and next steps.Helps you: Turn an unclear website idea into a scope and budget conversation.
Estimate Website Cost
Business Calculator

Profit Margin Calculator

Calculate profit, profit margin, and markup from a cost and selling price.Helps you: Understand how cost and price translate into profit, margin, and markup.
Calculate Profit Margin
Business Calculator

Break-Even Calculator

Calculate contribution margin, break-even units, and break-even revenue.Helps you: Estimate how many units must sell to cover the costs included in your model.
Calculate Break-Even
Business Calculator

ROI Calculator

Calculate net return and simple ROI for a business investment.Helps you: Compare the net financial return attributed to an investment with its cost.
Calculate ROI

The tools provide educational calculations and planning estimates. Verify important financial assumptions and decisions independently or with an appropriately qualified professional.

Tools + Lab

Plan the website, then inspect a real build

The Website Cost Estimator helps frame scope and tradeoffs. The Lab's first completed experiment shows one interactive landing-page approach, including the implementation, measured asset size, responsive checks, and limitations.

How to use the result

A calculation is the start of the decision

Use each result to expose assumptions, compare scenarios, and identify the evidence still needed.

  1. Define each input.Use one time period and a consistent meaning for cost, price, return, or scope.
  2. Compare scenarios.Change one reasonable assumption at a time and record why it changed.
  3. Verify the decision.Check real records, current terms, constraints, risk, and qualified advice where appropriate.