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Unit Economics Calculator

Estimate revenue, contribution margin, and profit per unit to understand whether each sale helps grow your business.

Your Details

Overview

A unit economics calculator helps you measure whether each sale is financially worthwhile. Enter your selling price, variable cost per unit, fixed costs, and expected units sold to estimate contribution margin, break-even volume, and profit for a period.

How it works

The calculator starts by finding revenue and total variable costs from your unit price, variable cost, and sales volume. It then calculates contribution margin per unit by subtracting variable cost from selling price. Total contribution is the contribution per unit multiplied by units sold. Profit is what remains after fixed costs are subtracted. Break-even units show how many sales are needed for total contribution to equal fixed costs.

How to use this calculator

  1. 1Enter your selling price per unit.
  2. 2Add the variable cost for each unit sold.
  3. 3Enter your total fixed costs for the same period.
  4. 4Input the number of units you expect to sell.
  5. 5Review the contribution margin, break-even units, and estimated profit.

Example Calculation

Selling Price per Unit

$100

Variable Cost per Unit

$40

Total Fixed Costs

$5,000

Units Sold

200

Contribution Margin per Unit

$60.00

If you sell 200 units at 100 each with a variable cost of 40 and fixed costs of 5000, the contribution margin per unit is 60, estimated profit is 7000, and break-even is about 83.33 units.

Frequently asked questions

What does a unit economics calculator measure?

It measures how much revenue, contribution, and profit you generate per unit sold, helping you judge whether your business model is sustainable.

What is contribution margin per unit?

Contribution margin per unit is your selling price minus your variable cost per unit. It shows how much each sale contributes toward fixed costs and profit.

What counts as a variable cost?

Variable costs are costs that rise with each sale, such as materials, packaging, payment processing, shipping, or usage-based service delivery costs.

What counts as a fixed cost?

Fixed costs are costs that do not usually change with short-term sales volume, such as rent, salaries, subscriptions, and insurance for the period.

What does break-even units mean?

Break-even units is the number of sales needed so that total contribution covers fixed costs, leaving neither profit nor loss.

Can I use this calculator for services or subscriptions?

Yes. You can treat one service sale, customer, order, or subscription period as a unit as long as your price and costs are measured consistently.

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Assumptions and warnings

Assumptions

  • All inputs relate to the same time period.
  • Variable cost per unit stays constant across all units sold.
  • Fixed costs do not change within the selected sales volume.
  • Results are estimates and do not include taxes, financing costs, or cash flow timing unless you include them in your inputs.

Warnings

  • This calculator provides an estimate only and is not financial advice.
  • Use actual business figures where possible before making pricing or budgeting decisions.