GP, markup and margin calculator

Set selling prices from your cost, or check the gross profit on a price you already charge. Enter cost excluding GST.

Selling price incl. GST
$0
Selling price excl. GST
GST (15%)
Gross profit per unit
Markup on cost
Gross profit margin
Gross profit per week

Markup is profit as a percentage of cost; GP margin is profit as a percentage of the selling price. A 50% markup gives a 33.3% margin.

Important: This calculator gives general estimates only. It is not tax, financial, lending or legal advice, and using it does not create a client relationship with Yugraj Singh Mahil Chartered Accountants Limited. Rates, thresholds and rules reflect the 2026–27 tax year and were last reviewed on 18 October 2026. They can change at any time, and the results may not reflect your circumstances. Please confirm current rates with Inland Revenue, ACC or your lender, and get advice before making decisions. To the extent permitted by law, we accept no liability for any loss arising from use of or reliance on this calculator. Questions? Call 021 0234 6659 or email ysm@yugrajca.co.nz.

Print or save your calculation

Enter your name and email address to print or save these results as a PDF.