Contract Lab and QC Staffing Cost Calculator
Price a contract lab or QC seat by hours and weeks, using KORE1 bill rates from 54 placements.
This lab staffing cost calculator prices a contract lab or QC seat at KORE1 bill rates. Six months at 40 hours a week runs $34,320 to $58,240, median $41,600, across 54 placements.
Last updated: October 20, 2026
What does a contract QC analyst cost for six months? Fair question. Most budget requests start with a number somebody remembered from the last one. The last one was before the rate card moved.
So here’s a number you can trace. It’s the bill rate, which already includes the contractor’s wages and the 24% employer burden, multiplied by the hours you choose, the same arithmetic that will show up on the invoice, so nothing in the estimate has to be walked back after finance sees it.
The seats run through our quality control staffing desk, inside the wider life sciences staffing group. That’s where every rate below was earned. No bill rate in the sheet came from a survey. A quality assurance seat is a different hire, and QC and GMP quality assurance differ on cost too.
Your lab staffing cost calculator, written up like a notebook entry
Five inputs, no email gate. Change one and the old figure stays on the page with a single line through it, initialed and dated, which is how a QC auditor wants a correction made, so the sheet keeps its own paper trail while you play with the numbers. Nobody tidies it up.
Every lab seat uses one rate range, because KORE1 doesn’t publish seat-level lab rates yet. Validation support bills above it, so that seat gets a written quote.
Full time is 40. Anything above that is overtime pay, which this sheet doesn’t price.
It opens on 27.5 weeks, the 193-day median for KORE1 lab and QC assignments.
Training weeks cover SOP read-and-understood and shadowing before independent work, and they bill at the same rate. A start date, if you have one, adds the end date and the day a contractor passes 1,040 hours.
- Choose the seat.
- Set the hours per week.
- Set the weeks.
- Add training weeks, if any.
- Read the low, median and high totals.
How the lab staffing cost calculator builds each number
A number you can’t trace is a number you can’t defend to finance. Here is every input the sheet uses, in the order it uses them. Nothing is hidden.
| Input | What the sheet uses | Where it comes from |
|---|---|---|
| Hourly bill rate | $33 low, $40 median, $56 high, which are the 25th percentile, median and 75th percentile | KORE1 lab and QC placements, 54 W2 contract placements, 2019 to 2026 |
| Recent check | 14 placements since 2022 have the same $40 median bill rate | KORE1 placement export, October 16, 2026 |
| Weeks | 27.5 by default | KORE1 median lab and QC assignment, 193 days |
| Hours per week | 40 by default | A standard full-time contract seat |
| Training weeks | You set them, and they bill at the same rate | Reader input. KORE1 has no data on training length to suggest one |
| Seats | QC analyst, lab technician, microbiology or EM and stability analyst share one range | No seat-level cells yet, and cells under 5 placements are suppressed |
| Validation support | Quote on request | Validation engineers bill above this family |
| Burden | 24%, already inside every bill rate | KORE1 modeled employer burden |
| Geography | 79% of placements are in California | KORE1 placement export, state of the worksite |
Anomalies and payroll-service deals are left out of the rates. This is a KORE1 placement dataset, not a cell in the Contract Rate Index, which covers IT, ERP, data, engineering and accounting only, and the rate methodology explains how those cells are built while our tech contractor hourly rates show what the index looks like for software roles. The lab and QC rate table itself is in lab and QC bill rates explained.
What this sheet leaves out
Fair is fair. These are the things it doesn’t price, listed so you can add them before the request goes to finance.
- Overtime. Every hour is straight time.
- Validation work, which gets a written quote.
- Your own people’s time, such as the analyst who trains the contractor, the supervisor who signs the notebook and the SOP owner who clears the read-and-understood before anyone touches a sample.
- Badges, system access and gowning supplies your site issues, whichever way you staff the seat.
- A site outside California. The placements behind the rates are 79% California, so a Texas or New Jersey quote can land differently.
What is inside a contract lab bill rate
Quick question. When a firm says it marks contractors up 35%, what is that 35% sitting on?
Often the wage alone, with a burden of 25% or so added separately underneath. Add them up and the sticker looks different. Sound familiar? A fully burdened labor rate is the wage plus that burden, and a bill rate is the fully burdened rate plus the firm’s margin, so ask every firm you talk to for burden and margin as two separate numbers and the quote gets a lot easier to read.
A worked example, not lab-specific
Devin Hornick at KORE1 explains it with round numbers. Pay is $100 an hour. The 24% employer burden covers payroll taxes, workers’ comp, liability insurance and California sick leave, so the loaded cost is $124, and a typical bill rate on top of that runs $150 to $160, so the firm keeps roughly $26 to $36 an hour in gross profit. Round numbers, on purpose.
“First off, it’s not a markup. Secondly, there’s a margin in there. And thirdly, there’s a bunch of other costs that you’re not thinking of.”
Devin Hornick, KORE1
Those figures are illustrative. Lab and QC seats are priced from the bill-rate range in the sheet and nothing else. For the full breakdown see our guide to the contractor burden rate, or how contract staffing works from offer to invoice.
California costs to know before you budget a lab seat
Start with what’s already in the price. California workers earn at least five paid sick days, or 40 hours, a year, and because that cost belongs to the employer burden it sits inside the bill rate rather than on top of it.
Overtime is where lab budgets slip. The state pays 1.5 times after 8 hours in a day and double time after 12, per the Department of Industrial Relations. A four-day, ten-hour schedule isn’t straight time unless a valid alternative workweek is in place.
Stability pulls and sterility reads don’t check the calendar. If your seat needs weekend or split-shift coverage, say so before the quote, not after. Say so early.
One caveat I’d rather say out loud. 79% of the placements behind these rates are in California, so the range already carries these rules, while a site in another state has different mandated costs and a bill rate that can differ along with them.
KORE1 placement data 2019-2026, exported October 16, 2026. Rates and assignment length cover 54 lab and QC placements. Offer to start covers 1,997 placements.
How lab bill rates compare with BLS wages
The Bureau of Labor Statistics publishes wages, not bill rates, so the honest comparison is a floor. Multiply an hourly wage by 1.24 and you have the least an employer pays to carry that person on payroll. A bill rate has to clear that number first. Blunt, but fair.
| Occupation | 25th percentile | Median | 75th percentile | Median × 1.24 |
|---|---|---|---|---|
| Chemical Technicians 19-4031 | $23.33 | $29.03 | $36.49 | $36.00 |
| Biological Technicians 19-4021 | $23.14 | $27.65 | $34.39 | $34.29 |
| Chemists 19-2031 | $33.39 | $43.87 | $60.36 | $54.40 |
U.S. hourly wages, BLS Occupational Employment and Wage Statistics, May 2025 estimates released May 15, 2026, pulled from the BLS API on October 20, 2026. The 1.24 column is an employer cost floor, not what KORE1 pays anyone. Read it as a floor.
KORE1’s $40 median bill rate sits above both technician floors and under the chemist floor. If the seat needs a degreed chemist who owns the method, budget off the chemist line and ask for a quote rather than the family median. Permanent pay for the same seat is in our quality control analyst salary guide.
When the contract seat turns into a permanent hire
A contractor who has worked your method for six months has already sat the longest interview there is. Both sides know how the work goes. Nobody is guessing.
Once a KORE1 contractor passes 1,040 hours, moving them onto your payroll costs no conversion fee. At 40 hours a week that’s week 26. The median lab and QC assignment runs 193 days, which is 27.5 weeks, so a typical seat passes the 1,040-hour mark with room to spare and the conversation about staying can start while the person is still productive.
That changes how I’d read the sheet. A six-month seat at the median costs $41,600, and the person is a known quantity when it ends. A strong analyst is like a free agent with a short list of teams calling, and a seat that ends with no plan for them is a seat you may lose to a competing offer before anyone has had the conversation.
Details on how this works sit in our guide to contract-to-hire staffing. If you’d rather start with a direct hire, the direct hire model is its own page, and seats that end on schedule are plain contract staffing.
Four lines that move a lab seat budget
Figures shown use the median bill rate of $40 an hour at 40 hours a week.
The no-fee conversion mark
Six months at 40 hours a week reaches it. Shorter seats stop short.
Two training weeks
Billed at the same rate, they add $3,200 at the median.
California daily overtime
It starts after 8 hours in a day, then doubles after 12.
Validation support
It bills above the lab and QC family, so it gets its own number.
Common Questions
How much does a contract QC analyst cost for six months?
Six months at 40 hours a week is 1,040 hours, which costs $34,320 to $58,240 at KORE1 lab and QC bill rates, with a median of $41,600.
The low end is the 25th percentile, $33 an hour. The high end is the 75th, $56. Run the default in the sheet above and you get $36,300 to $61,600 for 27.5 weeks, the median assignment.
Training weeks go on top. Budget them if your SOPs take longer than a week to sign off.
What does a contract lab technician cost per hour?
$33 to $56 an hour at KORE1 bill rates, with a median of $40, drawn from 54 lab and QC placements between 2019 and 2026.
Since 2022 the median is still $40, across 14 placements. KORE1 doesn’t publish seat-level lab rates yet, so a technician, an analyst and a stability seat all use the family range here. Same range, different titles.
Does the bill rate already include burden?
Yes, a KORE1 bill rate covers the contractor’s wages and the 24% employer burden, which pays for payroll taxes, workers’ comp, liability insurance and California sick leave.
Nothing gets stacked on top. Any firm that won’t show you burden and margin as separate lines is a firm whose quote you can’t compare with anyone else’s, which is the whole reason to ask.
How long does a typical contract lab or QC assignment run?
The median KORE1 lab and QC assignment runs 193 days, about 27.5 weeks, which is why the calculator opens on that number.
Plenty run shorter and some run for years. Fixed end date? Use it. If there isn’t one, plan on the median and review the seat at the halfway mark.
Can a contractor convert to a permanent employee?
Yes, once a contractor passes 1,040 hours, which is 26 weeks at 40 hours a week, KORE1 charges no conversion fee to move them onto your payroll.
Shorter seats stop short. The sheet tells you when yours does, and it gives the date if you enter a start date.
Why does validation support say quote on request?
Validation work bills above the lab and QC family, and showing you the family range would understate what it costs.
Send us the method, the system and the site, and we’ll price the seat against validation contractors instead of benchtop analysts, because the family range was never built to carry that kind of work.
What does California add to the cost of a lab seat?
California adds daily overtime and paid sick leave to a lab seat. It pays 1.5 times after 8 hours in a day, double time after 12, and guarantees at least five paid sick days a year.
Sick leave is priced in. Overtime isn’t. Tell us the schedule, particularly if the seat covers stability pulls or a ten-hour shift. The IRS also sets the payroll-tax piece of the burden, which you can read in Publication 15.
Bring us the seat. We’ll price it for your site.
Tell us the seat, the hours and the start date. A KORE1 scientific recruiter will come back with a quote and with candidates who have run the method. Expert in finding you the right talent, right away.
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