Parts Markup Calculator
Calculate parts markup from cost and selling price, or set a selling price from a markup percentage. See gross profit and margin for every part.
Free to use, no account required
Parts turn over slowly and tie up cash, so the selling price has to earn more than the supplier invoice. Check what a part really returns before you set the shelf price.
One part
What you paid, including inbound shipping.
Shipping, taxes you pay and any handling cost should be included in the part cost for an accurate result.
Part economics
—waiting for a cost
- Gross profit
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- Markup on cost
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- Gross margin
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- Part cost
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Margin below 100% is normal: margin is always the smaller of the two percentages.
How this is calculated
Selling price = Cost × (1 + Markup%) · Margin = (Price − Cost) ÷ Price
A $30 part with a 50% markup sells for $45 with $15 profit, which is a 33.3% margin, not 50%.
- The cost includes inbound shipping and any duty you paid to receive the part.
- Outbound shipping charged to the customer is treated as a separate sale line.
- Card processing fees are not deducted from the profit shown here.
Estimates only. Your rent, tax position, warranty costs and payment fees may differ from the values entered here.
Frequently asked questions
What is the difference between markup and margin on a part?
Markup is profit divided by cost, so a $30 part sold for $45 is a 50% markup. Margin is profit divided by the selling price, which for the same sale is 33.3%. The markup number always looks bigger.
What markup should a repair shop use on parts?
There is no universal number: high-volume accessories and expensive boards need different treatment. Decide per category and review it when supplier prices change, rather than applying one blanket markup to every part.
Should labor be included in the part price?
Keep them separate so you can see the part contribution on its own and price labor consistently across jobs. If you bundle them, this calculator only tells you the combined result.
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