Business calculators
Price, margin, break-even, commission and tax arithmetic for sellers and freelancers.
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Profit Margin Calculator
Compare gross profit, margin on sales and markup on direct cost.
BusinessBreak-Even Calculator
Find the minimum whole-unit sales needed to cover modeled costs.
BusinessCommission Calculator
Calculate flat commission above a threshold and add base pay.
BusinessTax on Price Calculator
Add or extract one flat tax rate that you enter on a price.
BusinessFreelance Hourly Rate Calculator
Model an hourly quote from annual pay, expenses and billable time you choose.
BusinessWhat these calculators cover
Pricing mistakes often come from using the wrong denominator. Margin divides profit by the selling price, while markup divides it by cost, so the same sale can show 20% margin and 25% markup. These calculators label each percentage with the number it is based on.
Use them for planning, quoting and checking invoices. They work with the costs, rates and thresholds you enter, so they do not know your local tax rules, payment processor fees or seasonal sales. Add those to your inputs when they apply.
Start from a common question
Start with a familiar question. Each shortcut opens the right calculator with the relevant options selected.
Business Calculators
Shortcuts to the pricing, profit and tax questions sellers ask most often.
Which tool fits your question?
Profit Margin compares gross profit with sales revenue and direct cost, so margin and markup retain their different denominators. Break-Even asks how many units cover fixed plus variable costs. Commission instead calculates flat pay on sales above a user-entered threshold and adds base pay; its sales total is not business profit.
Freelance Hourly Rate works backward from desired annual pay, business expenses and actual billable hours. Hourly to Salary, in the Salary & Pension section, instead projects gross pay from an already known hourly wage, so the two tools answer opposite planning questions.
Tax on Price adds or extracts one visitor-entered VAT or sales-tax rate. It does not choose a current jurisdictional rate, taxable base, exemption or invoice rounding rule.
Each tool shows its formula, a worked example and the limits of its result. Read our calculation methodology for the shared rules.
Read more about business
Worked examples and explanations for the tools above.
- Profit Margin vs Markup: Why a 25% Markup Is Only a 20% MarginA 25% markup on cost gives a 20% margin on the selling price, because the same profit is divided by a larger number. Convert with margin = markup ÷ (1 + markup) and markup = margin ÷ (1 − margin).Read article
- Break-Even Analysis Worked Example: Costs, Contribution and PriceBreak-even units equal fixed costs divided by contribution per unit (price minus variable cost). In the case below that is 120,000 ÷ 500 = 240 mugs a month, and a price cut raises the threshold much faster than a price rise lowers it.Read article
- Freelance Hourly Rate From an Annual Income Target, Step by StepDivide your desired annual pay plus business expenses by the hours you can actually invoice, not the hours you work, then add any reserve. For 2,400,000 of pay, 360,000 of expenses and 1,200 billable hours, that is 2,300 an hour, or 2,645 with a 15% reserve.Read article
Business questions
01What is the difference between margin and markup?
Margin is profit divided by revenue; markup is profit divided by cost. A product bought for 80 and sold for 100 has a 20% margin and a 25% markup. Profit Margin shows both.
02Can Break-Even handle a price change?
Yes. Change the selling price and recalculate. A higher price raises the contribution per unit, so fewer units are needed to cover the same fixed costs.
03Does Tax on Price know my VAT or GST rate?
No. Enter the rate that applies to your sale. The tool adds tax to a pre-tax price or extracts it from a tax-inclusive price, and shows both amounts.