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Break-Even Calculator

Estimate the sales you need to cover monthly costs, then see how a profit target or a change in price affects the goal.

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Verify before you act: review these results with a CPA or other qualified financial professional before making any decision based on them.

What is break-even?

Break-even is the point where your sales cover your fixed costs and the variable costs tied to those sales. At that point, the business has not made a profit, but it has not lost money on the costs included in the calculation.

For a product, each sale contributes its price minus its variable cost per unit. That contribution goes toward fixed costs, such as rent or software subscriptions, that do not change with each unit sold. Break-even units equal fixed costs divided by contribution per unit. To include a profit target, add it to fixed costs before dividing.

Why break-even matters

Break-even gives you a sales target to compare with your current sales and production capacity. It can help you decide whether a product’s price covers its costs, whether a planned hire fits the business, or whether a new location or piece of equipment is affordable.

The calculation also shows how sensitive your plan is to costs and pricing. If supplier costs rise, your contribution per sale falls and you need more sales to cover fixed costs. If you are considering a price change, the result can show how many units you would need to sell at the new price.

Use the estimate alongside your cash-flow plan. Break-even is not a cash-flow forecast: it does not show when customers pay, when bills are due, or whether you have enough cash on hand. A business can reach its sales target and still face a cash shortfall if payments arrive late.

How to use this break-even calculator

  1. Enter your fixed costs per month. Include recurring costs that do not rise directly with each unit sold, such as rent or a fixed software bill. Use costs for the same time period as your sales target.
  2. Enter the selling price for one unit and the variable cost for one unit. Variable costs are costs that increase with each sale, such as materials, packaging, or a per-sale production charge.
  3. Enter a monthly profit target if you want the calculator to estimate sales beyond break-even. Leave it at zero if you only want to cover costs.
  4. Review the units and revenue needed. The calculator rounds the units needed to a whole unit, because you cannot sell a fraction of a unit in many businesses. Compare the result with your actual sales, capacity, and cash-flow plan.

Break-even calculator example

Worked example

With fixed costs per month of $5,000, a price per unit of $50, a variable cost per unit of $20, and a profit target per month of $0, contribution per unit is $30.00 and contribution margin is 60.0%. The calculator returns break-even units per month of 167 and revenue needed of $8,350 a month. It also shows units per day (30-day month) of 5.6. The rounded unit goal covers the $5,000 in fixed costs because 167 units each contribute $30.00.

How to read your break-even result

Contribution per unit is the amount left from each sale after its variable cost. In the example, each unit contributes $30.00 toward fixed costs and the profit target. Contribution margin expresses that contribution as a share of the price; the example shows 60.0%.

Units needed is the estimated sales volume required for the costs and target you entered. Revenue needed multiplies those units by the selling price. Units per day (30-day month) is a pacing estimate, not a promise that sales will arrive evenly each day. If your business has busy and quiet periods, compare the monthly goal with your actual sales pattern and available capacity.

How to improve your break-even point

  1. 01

    Review pricing

    Test a higher price if customers will accept it, and compare the new unit goal with your sales history. A price increase can raise contribution per sale, but consider whether it could reduce the number of customers who buy.

  2. 02

    Reduce variable costs

    Ask suppliers about better terms, compare material options, or reduce waste in production. Recalculate using the cost you can reasonably achieve, rather than assuming a discount before you have agreed to it.

  3. 03

    Control fixed costs

    Review recurring expenses such as subscriptions, storage, and rent. Consider cancelling tools you do not use or renegotiating a contract before adding another fixed monthly commitment.

  4. 04

    Check your product mix

    If you sell products with different prices and costs, calculate their contributions separately. Consider promoting products that contribute more toward fixed costs, while checking that the sales mix is realistic for your customers.

  5. 05

    Set a profit target before committing

    Use the optional target to test whether a planned hire, purchase, or borrowing decision can fit your sales plan. If the required units exceed your capacity, revisit the price, costs, or timing before committing.

Common break-even mistakes

  • Leaving out costs

    A result is only as complete as the costs you enter. Check that fixed costs include the recurring expenses relevant to the business and that variable cost per unit includes the costs that rise with each sale.

  • Mixing time periods

    The calculator uses monthly fixed costs and a monthly profit target. Do not compare that result with costs or targets entered for a different period.

  • Treating the estimate as guaranteed sales

    Break-even tells you how many units you need under your inputs. It does not predict demand. Compare the target with your own sales records, customer pipeline, and capacity.

  • Using a price that does not cover variable cost

    If the price does not exceed the variable cost per unit, each additional sale does not contribute toward fixed costs. Review your price or unit costs before relying on a break-even estimate.

The break-even formula

Each sale contributes its price minus its variable cost. Dividing fixed costs, plus any profit target, by that contribution gives the units needed.

Key terms

Fixed costs
Costs that do not change directly with the number of units sold, such as a recurring rent payment.
Variable cost per unit
The cost that increases with each unit made or sold, such as materials used for that unit.
Contribution per unit
The price per unit minus the variable cost per unit. It is the amount available to cover fixed costs and any profit target.
Contribution margin
Contribution per unit expressed as a share of the selling price.
Break-even units
The number of units needed for sales contributions to cover fixed costs, with an optional profit target included if entered.

Break-even questions

What is the break-even formula?

Break-even units = fixed costs ÷ (price − variable cost per unit).

What costs should I include as fixed costs?

Include costs that stay broadly the same as unit sales change, such as rent or fixed subscriptions. Use costs that apply to the same monthly period as your calculation.

Does break-even include a profit?

A basic break-even result covers the costs entered and has no profit target. Enter a monthly profit target to estimate the sales needed to cover costs and reach that target.

Why does the calculator show a whole number of units?

The result is rounded to a whole unit because many products are sold as whole units. That rounded-up sales goal helps ensure the estimate covers the costs and target entered.

How often should I update my break-even estimate?

Update it when your prices, supplier costs, fixed expenses, or profit target change. Checking it against recent sales can also help you spot when your original assumptions no longer fit.

Before you act on this result. Cordwell calculators and guides are educational estimates, not legal, tax, investment, lending or other professional advice. They rely on the numbers you enter and on simplified rules, and they can't see your full situation. Before you file, sign, borrow, invest, hire, change your withholding or form a business based on anything here, meet with a CPA or other qualified financial professional who can review your specific facts and confirm the numbers. Rules change, and official agency guidance always controls.

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