Cobalt Tools UploadReady
Break-Even & Volume Targets100% Client-Side · Private Financial Modeling

Break-Even Calculator for Online Sellers

Know exactly how many units you must sell each month to cover fixed expenses, product costs, advertising budgets, and marketplace fees.

Calculated locally in browser. No business financial data is saved or shared.

Financial InputsReal-time calculations

$

Studio rent, Shopify subscriptions, software tools, equipment lease.

$
$
%
$

Monthly Break-Even Target

Products Needed to Break Even

43 Units

Equivalent to $1,505.00 in monthly revenue (~1.4 sales/day)

Contribution Margin per Unit

$17.68

Contribution Margin Ratio

50.5%

Sales Scenario Simulator:50 units/mo
Simulated Net Profit:$133.75

Frequently Asked Questions

What is a break-even point for an online business?

Your break-even point is the exact number of product units or dollar sales revenue you must generate in a period to cover all fixed costs (subscriptions, rent, salaries) and variable costs (materials, shipping, payment fees) with zero profit and zero loss.

What is contribution margin?

Contribution margin is the selling price minus all variable costs (materials, packaging, transaction fees, and advertising). It represents the cash each sale contributes towards paying off your fixed monthly overhead.

How does advertising cost (CAC) impact break-even units?

Customer acquisition cost directly reduces your unit contribution margin. If your profit per item before ads is $10 and you spend $5 on ads to get that sale, your contribution margin drops to $5, doubling the number of units needed to break even.

Does this calculator save my financial records?

No. Everything runs purely client-side in your browser session. Your sales numbers and overhead expenses remain completely private.

Cobalt Graphics Studio

Need a custom ecommerce solution?

Cobalt Graphics builds ecommerce websites, custom web applications and digital tools for businesses.

Work with Cobalt Graphics