Business Calculator
A business calculator for margin, markup, VAT, break-even and discount.
Seven everyday business calculations, each shown with the working: profit margin against markup (the two most often confused), tax added or stripped back out, discounts, break-even volume, gross profit and sales commission. Results update as you type, and a calculation that has no sensible answer says so instead of showing a misleading number.
What Business Calculator gives you
Everything below is included — no add-ons, no per-app checkout.
- Profit margin and markup, kept distinct
- VAT added or removed from a tax-inclusive amount
- Discount by percentage or by amount off
- Break-even units, revenue and contribution margin
- Gross profit and sales commission
- Every result shows the formula behind it
Every business calculator
Each one is its own page, free, and works without an account.
- Profit Margin CalculatorEnter what an item costs you and what you sell it for. You get the profit in money, the profit margin as a percentage of the selling price, and the markup as a percentage of the cost — the two percentages that get mixed up most often.
- Markup CalculatorStart from your cost and the markup you want to apply, and get the selling price it produces, the profit in money, and what that markup works out to as a profit margin. A 50% markup is not a 50% margin, and this shows you the difference.
- VAT / Tax CalculatorWorks both directions at any rate you enter. Add VAT or sales tax to a net figure, or take a tax-inclusive total and split it back into the net amount and the tax within it. Net and tax always add back to exactly the total, with no rounding drift.
- Discount CalculatorTake a percentage off or a fixed amount off, and see the discount in money, the final price, and what you gave away. A discount larger than the price is refused rather than shown as a negative total.
- Break-Even CalculatorEnter your fixed costs, your price per unit and your variable cost per unit. You get the break-even volume, the revenue that represents, and the contribution each unit makes towards the fixed costs. If a unit sells for less than it costs to make, it says there is no break-even point rather than printing a number.
- Profit CalculatorThe whole-business view rather than the per-item one. Enter revenue and cost for a period and get the gross profit, the profit margin, and what proportion of your revenue is being eaten by cost.
- Sales Commission CalculatorEnter the sale value and the commission rate to get what is owed to the seller and what remains to the business. Useful for checking a payout before it goes out.
How it works
The things worth knowing before you sign up.
How do I calculate profit margin?
Enter your cost and your selling price and the margin is worked out for you, with the formula shown underneath. Margin and markup are kept as separate tools on purpose — they are different numbers from the same two figures, and treating them as one is the most common pricing mistake there is.
How do I add or remove VAT from a price?
Both directions are covered. Add VAT to a net amount, or strip it out of a tax-inclusive total to find the amount before tax — the calculation people usually get wrong by subtracting the percentage instead of dividing.
How do I calculate a discount?
By percentage off or by amount off, whichever way the deal was described to you, and it shows the final price and what was saved.
How do I work out my break-even point?
Give your fixed costs, price per unit and variable cost per unit. You get break-even in units and in revenue, along with the contribution margin each sale makes toward covering the fixed costs.
What can it work out?
Profit margin and markup, VAT added or removed, discounts, break-even point, gross profit and sales commission. Each result shows the formula it used, so you can check it rather than trust it.
What is the difference between margin and markup?
Margin is profit as a share of the selling price; markup is profit as a share of the cost. A 50% markup is a 33% margin on the same numbers, which is why quoting from the wrong one quietly loses money on every sale.
Can I remove VAT from a price that already includes it?
Yes. Enter the gross amount and the rate, and it separates the net price from the tax. Useful when a supplier quotes an inclusive figure and your books need the two apart.
Works well with
Included in the same account, at no extra cost.
Convert between currencies at live rates, and see the rate you used.