Break-Even Calculator
Find your break-even point — when revenue covers all costs. Predict time to profitability and get actionable insights.
📋 Core Business Inputs
Rent, salaries, insurance — costs that don't change with sales
Raw materials, packaging, shipping per unit
What you charge the customer per unit
Fixed costs are entered as monthly values
Profit Goal Mode
Profitable Business
📊 Break-Even Analysis Chart
🧠 Key Insights
📋 Sensitivity Analysis — What If Scenarios
How break-even changes with different selling prices
| Selling Price | Contribution Margin | Break-even Units | Break-even Revenue | Monthly Profit |
|---|---|---|---|---|
| ₹350 | ₹150 | 334 | ₹1.2L | ₹-5,000 |
| ₹425 | ₹225 | 223 | ₹94.8K | ₹17.5K |
| ₹500Current | ₹300 | 167 | ₹83.5K | ₹40.0K |
| ₹575 | ₹375 | 134 | ₹77.0K | ₹62.5K |
| ₹650 | ₹450 | 112 | ₹72.8K | ₹85.0K |
| ₹750 | ₹550 | 91 | ₹68.3K | ₹1.1L |
What is the Break-Even Calculator?
The Break-Even Calculator is the most essential financial tool for any business owner, startup founder, or entrepreneur. It tells you the exact point where your total revenue equals your total costs — the moment your business stops losing money and starts making profit.
Understanding your break-even point is critical for pricing decisions, investment planning, and business viability assessment. Whether you're launching a new product, opening a store, or pitching to investors, knowing your break-even numbers gives you confidence and credibility.
This calculator goes far beyond basic break-even analysis. It calculates your contribution margin per unit, break-even units and revenue, time to break even, monthly profit or loss, margin of safety, payback period on your initial investment, and units required to hit your target profit. It also includes a Profit Goal Mode where you enter your desired monthly income and instantly see how many units you need to sell.
The visual break-even chart plots your Revenue line and Total Cost line on the same graph, clearly highlighting the intersection point where you break even. The green profit zone and red loss zone make it immediately obvious where your business stands.
For advanced users, the calculator includes growth projection simulation — enter your expected monthly sales growth rate and initial investment, and see a cumulative profit chart that shows exactly when you'll recover your investment. The sensitivity analysis table shows how your break-even point changes at different price points, helping you optimize your pricing strategy.
All calculations run instantly in your browser with zero data collection. No sign-up required. Built for Indian entrepreneurs with ₹ formatting, but useful for businesses anywhere in the world.
How Does the Break-Even Calculator Work?
The Break-Even Calculator uses fundamental cost-volume-profit (CVP) analysis to determine your business's break-even point and profitability metrics. Here's how to use it:
1. Enter your core inputs — Fixed Costs (rent, salaries, insurance — costs that don't change with sales volume), Variable Cost per Unit (raw materials, packaging, shipping per unit), and Selling Price per Unit (what you charge customers).
2. Choose your time period — Monthly or Yearly. This determines how your fixed costs are interpreted.
3. Expand Advanced Inputs (optional) — Enter Expected Monthly Sales to see profit/loss projections, Target Profit for goal-based analysis, Growth Rate for sales growth simulation, and Initial Investment for payback period calculation.
4. Toggle Profit Goal Mode — Enter your desired monthly income and instantly see the exact units and revenue required to achieve it.
5. Review results — The calculator instantly shows 8 key metrics in result cards, a visual break-even chart with Revenue and Cost lines, growth projection chart (if advanced inputs are provided), AI-generated insights about your business viability, and a sensitivity analysis table showing how different prices affect your break-even point.
The calculator handles edge cases like division by zero, negative contribution margins, and unprofitable pricing with clear warnings and explanations.
Formula & Calculation Method
The Break-Even Calculator uses these core formulas:
1. Contribution Margin (CM)
CM = Selling Price per Unit - Variable Cost per Unit
2. Break-Even Units
Break-Even Units = Fixed Costs / CM
3. Break-Even Revenue
Break-Even Revenue = Break-Even Units × Selling Price per Unit
4. Time to Break Even
Time (months) = Break-Even Units / Expected Monthly Sales
5. Monthly Profit/Loss
Profit = (CM × Monthly Sales) - Fixed Costs
6. Margin of Safety
MOS = ((Actual Sales - Break-Even Sales) / Actual Sales) × 100%
7. Payback Period
Payback = Initial Investment / Monthly Profit
8. Target Profit Units
Required Units = (Fixed Costs + Target Profit) / CM
9. Growth Projection
Each month: Sales = Previous Sales × (1 + Growth Rate)
Monthly Profit = CM × Current Sales - Fixed Costs
Cumulative Profit = Sum of all monthly profits - Initial Investment
The break-even point is where Total Revenue = Total Costs, or equivalently, where Profit = 0. Below this point, the business operates at a loss. Above it, every additional unit sold generates pure profit equal to the contribution margin.
Example Calculation
Example: Small bakery break-even analysis
Inputs:
- Fixed Costs: ₹50,000/month (rent, staff, utilities)
- Variable Cost per Unit: ₹200 (ingredients, packaging per cake)
- Selling Price per Unit: ₹500 per cake
- Expected Monthly Sales: 300 cakes
- Initial Investment: ₹5,00,000
- Growth Rate: 5%/month
Calculations:
1. Contribution Margin = ₹500 - ₹200 = ₹300 per cake
2. Break-Even Units = ₹50,000 / ₹300 = 167 cakes/month
3. Break-Even Revenue = 167 × ₹500 = ₹83,500/month
4. Time to Break Even = 167 / 300 = 0.6 months (~17 days)
5. Monthly Profit = (₹300 × 300) - ₹50,000 = ₹40,000/month
6. Margin of Safety = ((300 - 167) / 300) × 100 = 44.3%
→ Sales can drop by 44% before you start losing money!
7. Payback Period = ₹5,00,000 / ₹40,000 = 12.5 months
Key Insight: This bakery is profitable from day 17. With 5% monthly growth, the initial investment is recovered in about 10 months. The 44% margin of safety means the business is resilient to demand fluctuations.