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Business Break-Even Point Calculator

Rent, salaries, insurance, etc.
What you charge customers
Materials, labor, shipping

Calculation Results:

Units Needed to Break-Even: 0

Break-Even Sales Revenue: $0.00

Contribution Margin: $0.00


Understanding the Break-Even Point (BEP)

The Break-Even Point is a critical financial metric for every entrepreneur and business owner. It represents the exact moment when your total revenue equals your total expenses. At this point, your business is not making a profit, but it is also not incurring a loss. Knowing this number helps you set sales targets and pricing strategies.

How to Use the Break-Even Formula

The formula used in this calculator is:

Break-Even Point (Units) = Total Fixed Costs / (Price per Unit – Variable Cost per Unit)

Key Components Explained

  • Fixed Costs: Expenses that remain constant regardless of your sales volume. Examples include rent, monthly software subscriptions, and permanent staff salaries.
  • Sales Price Per Unit: The amount of money you receive for every individual item or service sold.
  • Variable Costs: Expenses that change in direct proportion to your production or sales. This includes raw materials, packaging, and shipping costs.
  • Contribution Margin: This is the difference between your Sales Price and Variable Cost. It is the amount of money "left over" from each sale to pay for your fixed costs.

Break-Even Example

Suppose you run a coffee shop with the following monthly data:

  • Fixed Costs: $3,000 (Rent and Utilities)
  • Sale Price: $5.00 per cup of coffee
  • Variable Cost: $1.50 (Coffee beans, milk, and cup)

Your contribution margin is $3.50 ($5.00 – $1.50). To break even, you must sell 858 cups of coffee ($3,000 / $3.50). Every cup sold after 858 generates a profit of $3.50.

function calculateBreakEven() { var fixedCosts = parseFloat(document.getElementById('fixedCosts').value); var unitPrice = parseFloat(document.getElementById('unitPrice').value); var variableCost = parseFloat(document.getElementById('variableCost').value); var resultArea = document.getElementById('resultArea'); var unitsResult = document.getElementById('unitsResult'); var revenueResult = document.getElementById('revenueResult'); var marginResult = document.getElementById('marginResult'); if (isNaN(fixedCosts) || isNaN(unitPrice) || isNaN(variableCost)) { alert('Please enter valid numerical values for all fields.'); return; } if (unitPrice <= variableCost) { alert('The Sales Price must be higher than the Variable Cost to achieve a break-even point.'); resultArea.style.display = 'none'; return; } var contributionMargin = unitPrice – variableCost; var breakEvenUnits = Math.ceil(fixedCosts / contributionMargin); var breakEvenRevenue = breakEvenUnits * unitPrice; unitsResult.innerHTML = breakEvenUnits.toLocaleString() + " Units"; revenueResult.innerHTML = "$" + breakEvenRevenue.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); marginResult.innerHTML = "$" + contributionMargin.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}) + " per unit"; resultArea.style.display = 'block'; }

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