Use this break-even point calculator to estimate the sales revenue, number of units, or selling price needed to cover a defined cost budget. At break-even, revenue equals costs: there is neither a profit nor a loss.
Important: this calculator adds fixed costs to the variable-cost amount you enter. Enter total variable costs for your planned sales volume, not variable cost per unit. If your variable costs change with the number of units sold, you must account for that when interpreting the result.
How to use the break-even point calculator
- Choose what to calculate. Select “Required number of units,” “Required amount of sales,” or “Required price per unit.”
- Enter Fixed Costs. Include costs that do not change with sales volume within the range you are analyzing, such as rent, insurance, and fixed salaries.
- Enter Variable Costs as a total amount. Include the estimated total cost of materials, packaging, sales commissions, and other volume-dependent expenses for your planned activity.
- Provide the remaining input. For required units, enter Price Per Unit. For required price, enter Number Of Units. The required-sales calculation needs only the two cost amounts.
Use the same period and currency throughout. For example, combine monthly fixed costs with monthly variable costs—not annual fixed costs with monthly variable costs. Avoid counting an expense in both categories.
Price Per Unit and Number Of Units must be greater than zero when used as divisors. For services, a unit could be a billable hour, appointment, or project, provided the costs and price use the same definition.
Break-even formulas used by this calculator
The calculator uses the following cost-budget formulas:
| Selected calculation | Formula | What the result means |
|---|---|---|
| Required number of units | (F + V) / P | Units needed to generate revenue equal to the entered total costs |
| Required amount of sales | F + V | Sales revenue needed to cover the entered total costs |
| Required price per unit | (F + V) / Q | Average selling price needed to cover costs at the entered quantity |
- F: total fixed costs for the period.
- V: total variable costs for the planned volume—not a per-unit amount.
- P: selling price per unit.
- Q: number of units expected to be sold.
These formulas allocate an entered cost budget across sales. They do not automatically recalculate variable costs as sales volume changes.
Worked example: units, sales revenue, and price
Suppose a workshop plans to sell 200 products in a month. Its fixed costs are $10,000, its total variable costs for those 200 products are $6,000, and its selling price is $80 per product.
| Calculation | Working | Result |
|---|---|---|
| Required units at an $80 selling price | ($10,000 + $6,000) / $80 | 200 units |
| Required sales revenue | $10,000 + $6,000 | $16,000 |
| Required price when selling 200 units | ($10,000 + $6,000) / 200 | $80 per unit |
At 200 units sold for $80 each, revenue is $16,000, matching the $16,000 cost budget. The workshop breaks even; it has not yet earned a profit.
If a units result includes a fraction and you sell only whole items, round up. For example, a requirement of 200.4 units means you need at least 201 units to cover the entered budget. Check whether producing and selling that quantity changes your variable costs.
For a required-price result with fractions of a cent, round up to the next cent if you need to cover the full budget at the stated quantity.
Why is this different from the standard contribution-margin formula?
Many break-even analysis methods start with variable cost per unit, rather than total variable costs. When that per-unit cost stays constant, the standard formula is:
Break-even units = Fixed costs / (Selling price per unit − Variable cost per unit)
The amount in parentheses is the contribution margin per unit: the money each sale contributes toward fixed costs and, once those are covered, profit. You can examine it with the contribution margin calculator.
In the workshop example, variable cost per unit is $6,000 / 200 = $30. The standard formula gives $10,000 / ($80 − $30) = 200 units, which agrees with the cost-budget calculation because the estimated total variable costs match the resulting volume.
Do not enter $30 in this calculator’s Variable Costs field for that example. It expects the $6,000 total. If you know only the variable cost per unit and want to solve for an unknown sales volume, the contribution-margin formula is the more direct approach.
If selling price is equal to or below variable cost per unit, additional sales cannot cover positive fixed costs under that model. A positive result from this calculator’s budget formula alone does not resolve that problem.
How to apply your break-even result
- Check whether the sales target is realistic. Compare required units with customer demand, production capacity, billable hours, and available inventory.
- Evaluate pricing. A required price shows what would cover the entered costs at a stated quantity—not what customers will necessarily pay. Reassess expected demand before increasing prices.
- Test cost reductions. Reducing the entered cost budget lowers the revenue needed to cover it. Distinguish genuine savings from costs merely deferred to a later period.
- Update volume-dependent costs. If a scenario changes unit sales, revisit materials, shipping, commissions, and other variable expenses rather than keeping their totals unchanged.
Revenue above a valid break-even threshold indicates a profit only after accounting for the costs associated with those additional sales. Below the threshold, the business has not covered the costs included in the analysis.
The result is also only as complete as your cost inputs. Omitted expenses can make the target look too low. Accounting break-even is not necessarily cash-flow break-even, because payment timing, inventory purchases, and loan repayments can affect available cash differently.
For businesses selling several products, a single unit price can be misleading. Analyze products separately or use a carefully estimated sales mix, and revisit the calculation when that mix changes.
Related metrics for pricing and profitability
Once you have a reliable break-even estimate, use the margin of safety to measure how far actual or forecast sales exceed it. A smaller buffer means a smaller decline in sales could bring the business back to break-even.
For product pricing, review the gross margin to understand the share of revenue remaining after cost of goods sold. Gross margin and contribution margin are not necessarily interchangeable because they can include different costs.
If you set prices by adding a percentage to cost, use the markup calculator. Markup is measured against cost, while margin is measured against selling price.
Build a break-even calculator for your business website
If customers need to evaluate a purchase, production run, or service package, a customized calculator can help them compare costs and required sales using assumptions relevant to your offering. With Calcopolis, you can build a customized business calculator with calculation rules tailored to your pricing and cost model—for example, separating per-unit expenses from fixed costs instead of asking customers to estimate a total variable-cost budget.