Manufacturing Cost Estimation Excel Template (Free Worksheet with Example)
This worksheet is a manufacturing cost estimation template you can fill in the browser and export to Excel or PDF. Each row is a cost driver for one finished part, and the sheet totals direct cost, adds overhead and shows the price at a target margin.
| Cost line | Category | Quantity per part | Rate | Scrap / allowance % (%) | Cost per part | |
|---|---|---|---|---|---|---|
$4 | ||||||
$8 | ||||||
$6 | ||||||
$0 | ||||||
$1 | ||||||
$1 | ||||||
$1 |
Quantity is per finished part, so convert lot costs first (setup hours divided by lot size). The 12% overhead and 18% margin are fixed in the summary formulas for the example; change them to your own rates in the Excel export. Machine and labor rates should be fully burdened hourly rates from your costing, not wages.
Estimate from your own job history
Optional: we can show how estimates can be drafted from your ERP job cost data on-prem.
Optional. The tool and every export work without this. No spam.
How to use the cost estimation worksheet
Replace the example rows with the cost lines for your part. Enter the quantity consumed per finished part (kilograms of material, hours of machine or labor time, or each for outside processes) and the rate for that quantity. Add an allowance percentage where material or time will be lost to scrap or rework. The sheet multiplies quantity by rate and allowance, totals the direct cost and then applies overhead and margin. Do the routing first: list every operation in sequence so no machine, inspection or packaging step is forgotten.
- One row per material, operation, outside process or tool charge
- Convert lot costs to per-part amounts before entering them
- Use burdened hourly rates for machines and labor
- Add a scrap allowance on material and high-risk operations
The cost model behind it
The estimate follows the standard build-up: direct material, plus direct labor, plus machine cost, plus amortized setup and tooling, plus outside processing, gives direct cost. Overhead is then added as a percentage of direct cost (or of labor or machine hours, if your costing system uses an absorption base), and the selling price is cost divided by one minus the margin. Dividing by one minus margin gives a true margin on price, whereas simply multiplying cost by 1.18 gives a markup of 18%, which is a lower margin of about 15%.
Worked example
The example part is a turned and milled stainless component. Material at 0.85 kg and 5% allowance costs about 3.75. Turning and milling add roughly 13.80 of machine time, setup adds under 0.50, deburr and inspection add under 2.10 and outside heat treat adds 1.10. Direct cost lands near 21.30. With 12% overhead the full cost is about 23.85 and the price at an 18% margin is about 29.10. Change the lot size or cycle time and watch the setup and machine lines move first.
Common mistakes and ERP notes
The usual errors are using wage instead of burdened rates, forgetting setup amortization on small lots, and leaving out outside processing freight. Compare the estimate with the actual job cost after the job closes: in most ERP systems the routing, standard cost roll-up and job cost report give you the actual hours and material to calibrate the allowances. If your estimates and actuals drift apart, fix the rate or the time standard rather than adding a larger contingency.
- Estimate cycle time from a similar part or a CAM simulation, not a guess
- Review rates every quarter against actual absorbed cost
- Keep estimate versions so you can compare quoted and actual cost
Frequently Asked Questions
How do I estimate manufacturing cost per part in Excel?
List every cost driver for one part: material by weight, each operation by time and burdened rate, amortized setup, outside processes and packaging. Multiply quantity by rate, add an allowance for scrap, sum the lines, then add overhead and margin. This worksheet does that and exports to Excel.
What is included in manufacturing cost?
Manufacturing cost includes direct materials, direct labor and manufacturing overhead such as machine depreciation, tooling, indirect labor and factory utilities. Selling, general and administrative costs are normally added afterward through margin or a separate markup rather than inside the manufacturing cost.
Is markup the same as margin?
No. Markup is a percentage of cost, margin is a percentage of price. A 25% markup gives a margin of 20%. To hit a target margin, divide cost by one minus the margin, which is how this worksheet calculates price.
Can I get this cost estimation format as a PDF?
Yes. Fill in the lines and use the export option to download a PDF, Excel or CSV copy. The PDF is a clean read-only version suitable for sharing with a customer or attaching to a quote file.
If your routings, rates and actual job costs already live in an ERP, Netray can add a private AI layer that drafts estimates from similar past jobs on your own servers. The worksheet above works without it.
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