SyteLine Job Cost Estimate Calculator
Whether you are checking a standard cost on a routing or pricing a one off job, the arithmetic is the same: hours times rates, plus material, spread over good units. This calculator makes the scrap and setup effects visible.
Your numbers
Share of started units that fail.
Overhead absorbed per machine hour.
Your results
Simplified estimate with one operation and one burden rate. Use your costing method and rates from the system for formal quotes.
Cost per good unit vs job quantity
Sweeps Good quantity required from 10 to 1000, holding your other inputs fixed.
Estimate vs actual job cost review
Optional: send a sample of closed jobs and we will point out where estimates and actuals diverge.
Optional. The tool and every export work without this. No spam.
How to use it
Enter the good quantity the customer needs, the scrap rate, setup and run time from the routing, labor and machine burden rates, and material per started piece. The estimator grosses up the start quantity for scrap, because you pay for every piece you start, then prices labor, burden and material. The chart sweeps job quantity so you can see where setup stops dominating and quote break points.
- Use run time per piece, not per hour of throughput
- Take rates from your cost center or work center records
- Run the chart range to find sensible quantity breaks
Method
Start quantity equals good quantity divided by one minus the scrap fraction. Total hours equal setup plus start quantity times run time. Cost equals hours times labor and machine rates plus material for the started quantity. Cost per unit is total cost over good quantity. This mirrors how a SyteLine job accumulates labor, machine and material costs against a job order, though real systems add overhead types, outside operations and scrap at specific operations.
Common mistakes
People often divide setup over started quantity rather than good quantity, which understates cost. Others apply scrap only to material and forget the machine time spent on rejected pieces. Another frequent issue is double counting overhead by including a burden rate and a separate overhead percentage. When the estimate disagrees with the system's actual job cost, compare hours first, since reported hours drift more than rates.
- Include rework and inspection time if it is routine
- Add outside processing separately as a lump or per piece
- Compare estimate against closed jobs, not just standards
Frequently Asked Questions
Does this match SyteLine standard cost?
It follows the same logic of hours times rates plus material, but your system may split labor, fixed and variable overhead and use different bases. Use it as a cross check, not a replacement.
Why does unit cost fall as quantity rises?
Setup time is fixed per job, so it is spread over more good units. The curve flattens once run time and material dominate.
How should I treat scrap that is found at the last operation?
It is the most expensive scrap because it carries all prior cost. This calculator uses a single scrap rate on full cost, which is conservative for early operation scrap.
Can I add multiple operations?
Sum the hours and use blended rates, or run the tool per operation and add the results. A routing worksheet is better for many operations.
If you want estimate versus actual job cost comparisons pulled straight from SyteLine and explained in plain language, we can set that up.
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