Break-Even Calculator

How to use this calculator

1. Enter your numbers in each field above — the calculator updates instantly as you type, so there's nothing to submit.
2. Use your real figures when you have them, or sensible estimates while you're planning. If a field doesn't apply, leave it at zero.
3. Compare the results, then change one input at a time to see how each lever (price, cost, fees, volume) moves the outcome.

When to use this calculator

• Before launching a new product or shop, to set a realistic 'first milestone' sales target.
• When buying equipment or a one-off bulk inventory order — to plan how long the payback takes.
• When adding a monthly subscription (shop apps, ad budget) to see the extra ongoing sales needed.
• When deciding between two pricing strategies — higher price, fewer sales to break even vs lower price, more sales.
• Alongside the Profit Margin Calculator to confirm 'profit per sale' is realistic and net of fees.

Formula

Sales to break even = ⌈ Startup costs ÷ Profit per sale ⌉ · Extra sales per month = ⌈ Monthly costs ÷ Profit per sale ⌉

Worked example

$300 startup costs, $15 profit per sale, and $30 of monthly recurring costs.

1. Sales to break even = ⌈ $300 ÷ $15 ⌉ = 20 sales
2. Extra sales per month = ⌈ $30 ÷ $15 ⌉ = 2 sales
3. After 20 sales, every additional sale adds real profit — provided you also cover the monthly $30.

Answer: 20 sales to break even, plus 2 more each month to cover monthly costs.

More worked examples

How it works

Expert tips

• Use profit per sale net of EVERYTHING — fees, materials, packaging, shipping, ads, refunds — or break-even will arrive later than the calculator suggests.
• If break-even feels too far off, the fastest lever is usually profit per sale (price + cost cuts), not sales volume.
• Build a return reserve: assume 5–10% of sales come back, so you need that many more to truly break even.
• For seasonal shops (holidays, craft fairs), set a break-even target by event rather than by month — it makes the goal tangible.
• Once you've broken even, immediately redirect a portion of further profit into the next product launch — compounding launches beat optimizing one SKU forever.

How to interpret your results

• Dollar values are shown per sale, per order, or per item unless a result is explicitly labelled monthly, weekly, or daily.
• Percentages (margin, ROI, conversion rate) are easier to compare across products and price points than raw dollars — use them when you benchmark.
• A positive result means you're ahead after the costs and fees you entered. A negative result means the current numbers don't work — change a lever (raise price, cut a cost, lower ad spend) and recalculate.
• Treat the output as a planning estimate, not a guarantee. Fees, taxes, and conversion rates shift over time — re-run the numbers whenever a key input changes.

Limitations

• Assumes profit per sale is constant — in reality it varies with price, fee changes, ad spend, and product mix.
• Doesn't separate fixed vs variable startup costs.
• Doesn't account for time value of money — a 2-year payback feels very different from a 2-month one even if the dollars match.
• Doesn't include taxes on profit; break-even is operational, not tax-adjusted.
• For platform-specific break-even (KDP, Etsy Ads, Shopify), the dedicated calculators model fees and royalties more precisely.

Common mistakes

• Using the sale price instead of profit per sale — that overstates how quickly you'll break even.
• Ignoring monthly recurring costs and only counting one-time startup spend.
• Forgetting that ads and refunds reduce profit per sale; build them in before you calculate.
• Treating break-even as the goal — it's the milestone where you stop losing money, not where you start a sustainable business.
• Comparing break-even sales between products with very different prices instead of comparing profit per sale.

Related Guides

Go deeper with plain-English guides on the same topic.

• What Is a Break-Even Point (and How to Find Yours)?

  Find the number of sales where you stop losing money and start making a profit.

  Read guide →

• What Is a Good Profit Margin?

  What counts as a healthy profit margin — and how it changes depending on what you sell and where.

  Read guide →

• What Is A Good Profit Margin? Complete Small Business Profit Margin Guide

  A 2026 profit margin guide — gross vs net vs contribution, what counts as a good margin, healthy benchmarks by industry and platform, formulas, and improvement strategies.

  Read guide →

• Pricing Psychology Explained: 25 Strategies That Increase Sales

  A 2026 pricing psychology guide — what it is, why it works, 25 specific techniques with examples, platform-specific applications, before/after scenarios, and ethics.

  Read guide →

FAQ

What is a break-even point?

The number of sales where your total profit equals everything you've spent. Before it, the shop is recovering its costs; after it, every sale is real profit.

How do I calculate break-even?

Divide your startup costs by your profit per sale and round up. For example, $300 startup costs and $15 profit per sale = 20 sales to break even.

What costs should I include?

Everything you spent to launch — equipment, design, software, samples, listing fees, packaging stock, and any upfront ad spend. If you also pay monthly costs, add them so you can plan for the extra sales each month.

Is break-even the same as profit?

No. Break-even is the point where you stop losing money. Profit starts on the next sale. A shop that hits break-even is healthy, but it's not yet a business that pays you.

How is this different from the KDP Break-Even Calculator?

This calculator works for any product or business. The KDP Break-Even Calculator is built specifically for Amazon KDP titles — it converts cover, design, and ad costs into the number of paperback or hardcover sales needed at your royalty per book.

What to calculate next

You may also find these tools helpful.

• Profit Margin Calculator

  Universal profit, margin, and markup for any product or channel.

• KDP Break-Even Calculator

  Sales needed to recover your KDP publishing costs.

• Print-on-Demand Profit Calculator

  Real profit after POD base cost, platform fees, and ads.

• Etsy Profit Calculator

  See your true profit after Etsy fees.

Related Resources

Helpful guides and tools to take your next step.

• Break-Even Planning Worksheet

  Calculate break-even points, profit cushions, and sales targets across any platform.

  Open resource →

• Seller Profit Workbook

  Track revenue, expenses, fees, margins, and break-even across any selling business.

  Open resource →

• Break-Even Point Guide

  Learn what break-even means and how fixed and variable costs shape it.

  Read guide →