Free parts pricing calculator

Parts markup calculator and matrix builder

Turn a markup into a margin (and back), then set up a tiered parts matrix with your own cost ranges and multipliers and see the price and gross profit for any part.

Free, no sign-upRuns in your browserNothing is uploaded

Markup and margin converter

Change any box: the price, markup, margin and multiplier update from the part cost.

Gross profit on this part-
-

Markup-
Margin-
Multiplier-

Parts matrix (example tiers: set your own)

Cost fromCost up toMultiplierMarkupMargin
Matrix price-
-
Gross profit-
GP %-
Markup-

In short

Markup is profit as a share of the part's cost; margin is profit as a share of the selling price. A $40 part sold for $90 is a 125% markup and a 55.6% gross margin. To hit a target margin, divide cost by (1 − margin): a 50% margin needs a 2.0× multiplier, which is a 100% markup.

How it works

How to use the Parts Markup Calculator

1

Convert markup and margin

Enter a part cost and a price, or a markup, margin or multiplier, and the rest fill in.

2

Set your matrix tiers

Edit the example cost ranges and multipliers (or enter margin % per tier), add or remove tiers.

3

Price a part

Type a part cost to see which tier it falls in, the price, gross profit and GP%.

What it does

What the parts markup calculator works out

Markup, margin, multiplier

All three from any one of them: margin = markup ÷ (1 + markup), multiplier = 1 ÷ (1 − margin).

Editable matrix

Your own cost ranges and multipliers, with each tier's markup and margin shown beside it.

Enter tiers as margin

Switch to margin % if you think in gross profit rather than multipliers.

Tier check

Warns when a tier's ceiling is lower than the one above it, or a multiplier is missing.

Private

Nothing leaves your browser, so your pricing stays yours.

Markup
(price − cost) ÷ cost
Margin (GP %)
(price − cost) ÷ price
Price for a target margin
cost ÷ (1 − margin)
Example matrix
7 tiers from 3.0× on parts up to $10 to 1.45× over $500: an example only, set your own
Rounding
Prices are rounded to the cent
FAQ

Questions about the parts markup calculator

What is the difference between markup and margin?
Markup compares profit with cost; margin compares profit with the selling price. The same part can be a 100% markup and a 50% margin: bought at $50 and sold at $100.
How do I convert markup to margin?
Margin = markup ÷ (1 + markup). A 50% markup is 0.5 ÷ 1.5 = 33.3% margin, and a 100% markup is a 50% margin. To go back, markup = margin ÷ (1 − margin).
What is a parts matrix?
A price table that applies a bigger multiplier to cheap parts and a smaller one to expensive parts, so a $4 bulb and a $600 module both end up priced sensibly. Each tier covers a range of part cost.
What multipliers should my matrix use?
There's no standard. The example tiers here are only a starting point. Set yours from your target parts gross profit, local competition and what your customers accept, and review them when supplier prices change. Check your state's estimate and invoice rules too.
Does the price include tax or core charges?
No. Enter your cost before tax, and handle core charges and sales tax separately on the invoice.
Keep going

Guides and features for this

Parts markup matrix for auto repairGuideAuto repair shop profit marginsGuidePrice book and maintenance plansBayRobinHow to write an auto repair estimateGuideAll guides on pricing and shop numbersTopic guides
Sources

Where the formulas and rules come from

Checked October 2026. Results are estimates; check them against your own records before you rely on them.

Link to this tool

Useful for your team or your readers? Paste this into a blog post, forum or resource page.

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