Free calculators

Simple business calculators

Pick a calculator and work it out on the spot. Quick, no sign-up tools for the numbers business owners ask about most.

Gross profit margin

How much of each sale is left after the direct cost of what you sold.

£
£
Gross margin
40.0%
Gross profit£4,000
Markup on cost66.7%
Margin = gross profit ÷ revenue × 100

Net profit margin

What's left after all costs, the true bottom line.

£
£
Net margin
29.2%
Net profit£35,000
Margin = net profit ÷ revenue × 100

Markup to selling price

Set a price by adding a markup to what an item costs you.

£
Selling price
£80.00
Profit per item£30.00
That's a margin of37.5%
Price = cost × (1 + markup ÷ 100)

Break-even point

How many units you must sell to cover your fixed costs.

£
£
£
Units to break even
267 units
Break-even revenue£6,675
Profit per unit£15.00
Units = fixed costs ÷ (price − variable cost)

VAT calculator

Add VAT to a net price, or strip it out of a gross price.

£
Total amount
£1,200.00
Net (before VAT)£1,000.00
VAT£200.00
Gross = net × 1.20

These calculators are for quick estimates and general guidance only, not financial or tax advice. VAT registration is required once taxable turnover passes £90,000. Always check figures against your own records or an adviser.