How to calculate break-even for ecommerce?

For ecommerce, break-even units = Fixed Costs / (Selling Price - Variable Cost per Unit). Fixed costs include rent, software subscriptions, salaries, and insurance. Variable costs per unit include COGS, shipping, packaging, payment processing fees (typically 2.9% + $0.30), and marketplace fees. A product selling at $50 with $20 in variable costs and $9,000 in monthly fixed costs breaks even at 300 units per month.

What is contribution margin?

Contribution margin is the difference between a product's selling price and its variable cost per unit. It represents how much each unit 'contributes' toward covering fixed costs and generating profit. A $50 product with $20 in variable costs has a $30 contribution margin, or 60% contribution margin ratio. The higher your contribution margin, the fewer units you need to sell to break even.

How many units do I need to sell to be profitable?

You need to sell enough units so that total contribution margin (units x contribution margin per unit) exceeds your fixed costs. For example, if your fixed costs are $10,000/month, your contribution margin is $25/unit, and you want $5,000 in profit, you need (10,000 + 5,000) / 25 = 600 units per month. Your safety margin should ideally be 25% or higher to buffer against slow months.

How to lower my break-even point?

Five proven strategies: (1) Reduce fixed costs by renegotiating rent, switching to cheaper software, or outsourcing. (2) Increase your selling price -- even a 5-10% increase can dramatically reduce break-even units. (3) Reduce variable costs per unit through supplier negotiation and bulk purchasing. (4) Bundle products to increase AOV. (5) Focus on higher-margin products in your sales mix. The most impactful lever is usually pricing.

Break-Even Calculator

Q: What is break-even point?

The break-even point is the number of units you need to sell so that your total revenue exactly equals your total costs (fixed costs + variable costs). Below this point, you are operating at a loss. Above it, every additional unit sold generates profit. For ecommerce businesses, break-even analysis is critical for pricing decisions, launch planning, and understanding how many sales you need before a product becomes profitable.

Find out how many units you need to sell before you start making money. Includes contribution margin and sensitivity analysis.

Enter Your Numbers

Fixed Costs (monthly)

Rent, salaries, software, insurance, etc.

Selling Price per Unit

Variable Cost per Unit

COGS, shipping, packaging, payment fees per unit

Expected Monthly Units (optional)

Used to calculate your safety margin

Break-Even Analysis

Enter your costs and pricing to see break-even analysis

What is Break-Even Point?

The break-even point is the exact number of units you need to sell for your total revenue to equal your total costs. Below break-even, you are losing money. Above it, every sale generates profit. It is the most fundamental calculation in business finance.

The formula: Break-Even Units = Fixed Costs / (Selling Price - Variable Cost per Unit)

For example, if your monthly fixed costs are $10,000, your product sells for $50, and your variable cost per unit (COGS + shipping + fees) is $20, your break-even point is 10,000 / (50 - 20) = 334 units per month. Sell fewer than 334, and you lose money. Sell more, and each additional unit adds $30 to your profit.

For Shopify merchants, break-even analysis answers the most important question before launching any product: "How many sales do I need before this makes money?" It protects you from the most common DTC mistake - investing in products that will never be profitable at achievable volume.

Understanding Contribution Margin

Contribution margin is the profit per unit after subtracting all variable costs. It measures how much each sale "contributes" toward paying off your fixed costs. Once enough units are sold to cover fixed costs entirely, the contribution margin becomes pure profit.

Contribution Margin = Selling Price - Variable Cost per Unit

The contribution margin ratio expresses this as a percentage of revenue: CM Ratio = CM / Selling Price. A ratio of 60% means $0.60 of every revenue dollar goes toward covering fixed costs and profit.

Why does this matter? Because products with higher contribution margins reach break-even faster. If you sell two products - one with a $10 CM and another with a $30 CM - and your fixed costs are $9,000/month, the first product needs 900 units to break even while the second needs only 300. Contribution margin is the lever that determines how quickly your business becomes profitable.

For multi-product stores, calculating the weighted average contribution margin across your product mix gives a realistic break-even target. This accounts for the reality that not all products contribute equally to your bottom line.

How to Lower Your Break-Even Point

1. Reduce Fixed Costs

Audit every recurring expense. Switch to annual billing for software (typically 20% savings). Renegotiate your lease or move to a cheaper location. Consider outsourcing tasks instead of hiring full-time. Every $1,000 you cut from fixed costs reduces your break-even by dozens or hundreds of units depending on your margin.

2. Increase Your Selling Price

Pricing is the most powerful lever in break-even analysis. A 10% price increase on a $50 product (to $55) reduces break-even from 334 units to 286 units - a 14% reduction. Most ecommerce brands underprice. Test higher prices with A/B testing before committing. The fear of losing sales almost always overestimates the actual impact.

3. Reduce Variable Costs

Negotiate supplier pricing at volume milestones. Optimize packaging dimensions to reduce shipping costs. Compare payment processors - even a 0.5% reduction in transaction fees adds up at scale. Reduce return rates with better product descriptions and sizing guides. Every dollar saved per unit directly increases your contribution margin.

4. Increase Volume Through Bundles

Bundling products increases average order value without proportionally increasing variable costs. A bundle priced at $80 that costs $30 in variable costs has a $50 contribution margin - far better than selling items individually. Bundles also reduce per-order shipping costs and increase perceived value.

5. Improve Your Product Mix

Focus marketing spend on your highest-margin products. Use the multi-product break-even calculator above to understand how shifting your sales mix affects overall break-even. A store with 70% of sales from high-margin products will break even much faster than one with 70% of sales from low-margin products.

6. Track Everything Automatically

Break-even shifts constantly as costs change, prices adjust, and product mix evolves. Manual tracking in spreadsheets falls behind reality within weeks. Automated tracking ensures you always know where you stand.

Lifetimely by Amp tracks real-time P&L across every product, order, and marketing channel - with the same benchmarks from 21,000+ stores you see on this page.

Learn more about Lifetimely

Break-Even Context by Industry

Break-even targets vary significantly by industry due to differences in fixed cost structures, contribution margins, and typical order volumes. Industries with high perceived value and low variable costs - such as digital products or premium beauty - can reach break-even with relatively few units. Industries with thin margins and high variable costs - such as food, beverage, and electronics - require substantially higher volume to cover fixed costs.

The most important factor is your own cost structure. Use the calculator above to find your exact break-even point. As a general principle: the lower your contribution margin, the more sensitive your break-even is to small changes in price or cost. A small price increase or cost reduction can meaningfully reduce the number of units you need to sell before becoming profitable.