Each tool below has a different purpose, assumptions, and common pitfalls. Read the framing first — the same numbers can mean very different things depending on the formula.
The Break-Even Calculator determines exactly how many units you need to sell — or what total revenue you need to generate — to cover all your fixed and variable costs. At the break-even point, you make neither profit nor loss. Every unit sold beyond that point is pure profit. This is a critical tool for business planning: it tells you if a product idea is viable at your current price, how much you need to cut costs to become profitable, and how pricing changes affect your required sales volume. Essential for startups, new product launches, and ongoing business review.
The Commission Calculator quickly computes the commission amount earned from a sale, a month of sales, or any sales total. Enter the total sales amount and your commission rate to see your exact gross earnings. You can also calculate what sales volume is needed to hit a target commission amount — useful for monthly goal setting. Whether you're in real estate, software sales, retail, or any commission-based role, this tool helps you understand your earning potential and plan your income.
The Invoice VAT Calculator helps freelancers, consultants, small business owners, and accountants prepare accurate invoice totals quickly. Add multiple line items with descriptions, quantities, and unit prices, then apply VAT at customizable rates — including different rates per line if your jurisdiction requires it. Instantly see the subtotal, total VAT, and grand total. Common VAT rates for the UK (20%), EU countries (19–25%), Korea (10%), Japan (10%), and Australia (10% GST) are supported. Note: always verify the current VAT/GST rate with your country's tax authority before issuing invoices.
The Margin Calculator is an essential tool for business owners, product managers, and pricing analysts. Calculate your gross profit margin percentage from cost and revenue data, find the selling price needed to achieve a target margin, or work backwards from revenue to find implied costs. Understanding your margins is fundamental to sustainable pricing — a business can have strong revenue but thin margins that leave little room for operating expenses, taxes, or reinvestment. This calculator helps you see exactly where you stand.
The Markup Calculator helps retailers, wholesalers, and service businesses set prices by calculating the markup applied to cost. Enter your cost and desired markup percentage to find the selling price and profit — or enter the cost and price to calculate the implied markup. Unlike margin (which is profit as a percentage of selling price), markup is profit as a percentage of cost. Understanding the distinction helps you set prices that meet both your revenue goals and your competitive positioning in the market.