Enter your monthly fixed costs, price per unit or job, and variable cost per unit below. The calculator instantly shows your contribution margin, break-even point in units and revenue, and how much a 10% price increase changes the target — no signup, no download.
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Break-even revenue = Fixed Costs ÷ Contribution Margin Ratio. Units = ⌈Fixed Costs ÷ CM⌉ (ceiling division — partial units round up). Assumes a single product or service type at a fixed price. For multi-product businesses, use a weighted average CM. This calculator is for planning purposes only. Full P&L model with break-even tracking in the Small Business Dashboard Pro spreadsheet.
Every break-even calculation rests on two building blocks: contribution margin and fixed costs.
Contribution margin (CM) is the amount left from each sale after paying variable costs — the direct cost that moves with volume (materials, delivery labor, commissions, payment processing fees). Every dollar of CM goes toward covering fixed costs first, then generating profit.
Fixed costs are the expenses you pay regardless of sales volume: rent, salaried payroll, insurance, software subscriptions, and other overhead. They do not change whether you make 10 sales or 100 sales this month.
| Business Type | Typical CMR | Fixed Cost Range | What Drives Break-Even |
|---|---|---|---|
| Consulting / Agency | 70–85% | $5,000–$15,000/mo | Client count — each client covers large CM |
| SaaS / Digital Products | 80–95% | $2,000–$10,000/mo | Subscriber count — near-zero variable cost |
| Retail / E-commerce | 40–60% | $3,000–$8,000/mo | Transaction volume — thinner margins need more orders |
| Food Service | 25–45% | $8,000–$30,000/mo | Covers + table turns — high fixed + low CMR = high BE |
| Manufacturing | 30–50% | $10,000–$50,000/mo | Production volume — large fixed cost denominator |
Fixed: $3,500/mo • Price: $500/client • Variable: $150/client
Fixed: $5,500/mo • Price: $1,200/engagement • Variable: $200/engagement
Fixed: $4,000/mo • Price: $25/unit • Variable: $8/unit
Price leverage compounds with thin margins: A 10% price increase in Example 3 ($25 → $27.50) saves 30 units/month — a 12.7% reduction in the break-even burden. The same 10% increase in Example 1 saves only 1 client because the CMR is already 70%. The lower your CMR, the more powerful each price increase becomes.
Break-even is a floor, not a goal. Once you know the break-even revenue, use it three ways:
The Small Business Dashboard Pro includes a full P&L with contribution margin tracking by product or service line, cash flow projection, and break-even charts that update automatically. One-time purchase, instant download. Open in Excel or Google Sheets.
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Contribution margin (CM) is the amount left from each sale after covering variable costs — what each unit contributes toward paying fixed costs. Formula: CM = Price − Variable Cost. If your price is $500 and variable cost is $150, your CM is $350. You need to sell enough units so that total CM equals total fixed costs. The CM ratio (CM ÷ Price) shows what percentage of each revenue dollar is available for fixed cost coverage and profit. Higher CM means fewer units to break even.
What is a good contribution margin ratio for a small business?
A CMR above 60% is generally healthy for service businesses — consultants, agencies, and freelancers — where variable costs are low. Product businesses typically run 40–60% CMR. Manufacturing and retail often run below 40%, requiring high unit volume. There is no universal target. What matters is whether your CMR × projected volume exceeds fixed costs at a volume you can realistically achieve. A 30% CMR business can be profitable with high volume; a 90% CMR business can still fail if fixed costs exceed addressable demand.
How do I lower my break-even point without cutting quality?
Three levers: (1) Raise price — even a 10% increase reduces break-even units significantly (the calculator shows exactly how many). Established clients rarely churn over a modest increase from a trusted provider. (2) Cut fixed costs — audit recurring subscriptions, renegotiate overhead, eliminate underutilized expenses. (3) Reduce variable cost per unit — bulk purchasing, better delivery tools, or restructured service delivery. Quality cuts that drive churn raise the effective break-even by reducing repeat business and referrals.
Should I track break-even in revenue or units?
Track whichever aligns with how your business generates revenue. Break-even units is most useful for product businesses or fixed-fee services where each sale has the same price. Break-even revenue is more useful when pricing varies by client, project scope, or service tier. For businesses with a mix of products and services at different price points, use break-even revenue as the monthly dashboard metric. The two are equivalent for single-price businesses: break-even revenue = break-even units × price.