Break Even Calculator | DailyTipsFinder

What this calculator does

Every business has a number below which it loses money and above which it makes money. Knowing that number changes how you think about everything: whether to take on a bigger shop, whether to hire, whether a slow month is a problem or just a slow month.

This calculator finds it. Enter your fixed monthly costs, your selling price per unit and the variable cost of producing or buying each unit, and it returns your break even point in units and in revenue, together with a daily figure that is often easier to hold in your head.

Add your target profit and it tells you the volume that delivers it. Add your current sales and it tells you where you stand today, including your margin of safety, which is how far sales could fall before you are back at break even. That last figure is the one that tells you how much risk the business is actually carrying.

How the calculation works

The key concept is contribution. Every unit you sell brings in the selling price and costs you the variable cost. What remains is the contribution, and it goes towards covering fixed costs. Once total contribution equals fixed costs, you have broken even. Everything after that is profit.

So the break even point in units is fixed costs divided by contribution per unit. Multiply by the selling price and you get break even revenue.

The distinction between fixed and variable costs matters enormously. Rent, salaries and subscriptions are fixed: they arrive whether you sell anything or not. Materials, packaging, delivery and payment processing charges are variable: they only occur when you make a sale. Misclassifying a cost throws the whole calculation out, and the most common error is treating staff wages as variable when they are in practice fixed.

The formula

Contribution per unit = Selling price − Variable cost per unit

Break even units = Fixed costs ÷ Contribution per unit

Break even revenue = Break even units × Selling price

Units for a target profit = (Fixed costs + Target profit) ÷ Contribution per unit

Margin of safety = ((Current units − Break even units) ÷ Current units) × 100

A worked example

A small workshop has fixed costs of ₦450,000 a month covering rent, one salary and power. It sells an item for ₦12,000 with variable costs of ₦7,200 for materials, packaging and delivery.

Contribution per unit is ₦4,800, which is 40 per cent of the selling price. Break even is ₦450,000 divided by ₦4,800, which is 94 units a month, or about three a day. At that volume, revenue is ₦1,128,000 and the business makes exactly nothing.

The owner currently sells 85 units, so she is nine short and losing ₦42,000 a month. To make ₦300,000 in profit she would need 157 units, which is nearly double her current volume. That is a demanding target, and it reframes the question. Cutting fixed costs by ₦100,000 drops break even to 73 units, which puts her into profit at her existing sales immediately. Reducing what you must cover is often faster and more certain than increasing what you sell.

Things worth knowing

Fixed costs set the floor

Every naira of fixed cost you remove lowers the break even point permanently. Every extra sale has to be made again next month. When a business is struggling, the cost side usually offers a faster and more certain result than the revenue side.

Classify costs carefully

A cost is variable only if it disappears when you make no sales. Staff salaries are usually fixed even though they feel tied to production. Getting this wrong produces a break even point that looks comfortable and is not.

Watch your margin of safety

Operating just above break even means a slow month becomes a loss. A margin of safety of thirty per cent or more gives the business room to absorb a downturn without a crisis. It is a better measure of health than profit alone.

Price moves the point fastest

A ten per cent price increase, where the market will bear it, raises contribution far more than a ten per cent cut in variable cost usually can. Test it on a small scale before assuming customers will not accept it.

Common mistakes to avoid

Treating fixed costs as variable, which makes break even look far lower than it is.
Forgetting payment processing charges, delivery and breakage in the variable cost.
Leaving the owner's own drawings out of fixed costs, so break even excludes the need to eat.
Using an average selling price across products with very different contributions.
Calculating break even once and never revisiting it after costs change.
Confusing break even with profitability, and treating covering costs as success.

Frequently asked questions

What is a break even point?

The level of sales at which total revenue exactly equals total costs. Below it you lose money, above it you make money, and at it you make exactly nothing.

What counts as a fixed cost?

Anything you pay regardless of sales volume: rent, salaries, subscriptions, insurance, security, base power costs and loan repayments. If it arrives in a month when you sell nothing, it is fixed.

Should my own salary be a fixed cost?

If you depend on the business for a living, yes. A break even point that does not include what you need to take out is not telling you when the business works, only when it stops losing money on paper.

How do I calculate break even with several products?

Use a weighted average contribution based on your actual sales mix, or calculate separately for each product line. Using a simple average across products with very different margins produces a misleading figure.

How often should I recalculate?

Whenever fixed costs, variable costs or prices change, and at minimum every quarter. In an environment where input costs move quickly, a break even figure from six months ago is a historical curiosity rather than a management tool.