Metrics Calculator

Business Calculators

Profit margin, markup, discount, break-even, sales tax, revenue, cost per unit, and profit calculators to help you price products and maximize profitability.

These tools handle the core math behind pricing, profitability, and sales. Enter your costs, prices, or revenue numbers and get instant results with the formulas shown. Whether you're setting prices for a new product or checking margins on an existing one, each calculator walks you through the math.

8 calculators available

Which calculator do you need?

For pricing decisions, start with the profit margin calculator to see how much you keep from each sale, or the markup calculator to set prices based on a target percentage above cost. These two metrics look similar but use different formulas. A 50% markup on a $10 item gives a $15 price, but the margin on that sale is 33.3%, not 50%.

If you're launching a product or service, the break-even calculator tells you how many units you need to sell before you start turning a profit. For retail pricing, the discount calculator handles single and stacked discounts, and the sales tax calculator computes tax-inclusive and tax-exclusive prices for any US rate.

Common questions about business calculations

What is the difference between margin and markup?

Margin and markup both measure profit, but from different starting points. Margin is profit as a percentage of the selling price: (Price - Cost) / Price. Markup is profit as a percentage of the cost: (Price - Cost) / Cost. A product that costs $60 and sells for $100 has a 40% margin and a 66.7% markup, so markup is always the higher number. Retailers typically talk in margin, while manufacturers often think in markup.

How do I calculate break-even?

Divide your fixed costs by the contribution margin per unit (selling price minus variable cost per unit). If your monthly fixed costs are $5,000, you sell each unit for $50, and each unit costs $30 to produce, your break-even point is $5,000 / ($50 - $30) = 250 units per month. Any sales beyond 250 units are profit. The break-even calculator also charts this visually so you can see where your revenue line crosses total costs.

How does sales tax work in the US?

Sales tax in the US is set at the state and local level, so rates vary widely. Five states have no statewide sales tax (Alaska, Delaware, Montana, New Hampshire, and Oregon). In states that do charge it, combined state and local rates range from about 4% to over 10%. Sales tax is added on top of the listed price at checkout, so to calculate the total, multiply the price by (1 + tax rate). A $25 item at 8.25% tax costs $25 x 1.0825 = $27.06.