How this calculation works
Each sale contributes the selling price less variable cost toward fixed costs. Round up to a whole unit to cover all fixed costs. There is no break-even point if contribution is zero or negative.
Break-even units = ceiling(fixed costs ÷ (price − variable cost))A worked example
With ₹10,000 fixed costs and ₹40 contribution per unit, break-even is 250 units.
Good to know
Uses the stated formula and assumptions. Displayed decimal values are rounded; use consistent units for all inputs.
Contribution pays fixed costs before it becomes profit
Sell for ₹100 with a variable cost of ₹60 and each unit contributes ₹40 toward fixed costs. With ₹10,000 in fixed costs, the first 250 units cover that amount under the model. The selling price itself is not the contribution.
Dividing fixed costs by the full selling price would understate the required sales because it ignores the cost that accompanies each sale. Once fixed costs are covered, additional units contribute toward operating profit as long as the model remains valid.
Whole units and a stable cost structure are assumptions
The result rounds up because selling a fraction of a unit may not be possible. If the mathematical break-even point is 250.2 units, at least 251 whole units are needed to cover the fixed amount.
Real costs can change at capacity thresholds, and different products can have different contribution margins. This single-product model assumes the entered price and variable cost remain constant and all produced units represented in the calculation are sold.
A few questions, answered
What if selling price equals variable cost?
Each sale contributes nothing toward fixed costs, so this model has no finite break-even point.
Does it include a target profit?
No. It calculates the units required to cover the entered fixed costs, without an added profit target.