Complete Blood Count
WBC Count test cost — $3.20–$21.95
WBC Count · measured in K/µL
Lower-normal white count signals less chronic inflammation.
Lower is betterReference range
4,500–11,000 cells/µL
General examples using the source’s sex categories. Age, pregnancy, altitude and the reporting laboratory can change the applicable interval.
Optimal range / clinical target
A separate universal ‘optimal’ interval is not established in the cited guidance. The goal depends on why you were tested; aiming for the middle or an extreme of the reference interval is not a treatment plan.
Examples are educational, not your reporting lab’s interval.
NIH MedlinePlus: blood countsWhen WBC Count matters
Protocols and goals where this marker is worth tracking.
On TRT, HRT, GLP-1s or peptides? Use the Find tests for your goal tool to see suggested biomarkers and build your monitoring list.
Tests that include WBC Count
WBC Count is included in CBC w/ differential. GoodLabs and Ulta prices below cover that panel, not an individual biomarker. Test prices are shown before separate collection fees.
Tracking more than one biomarker?
Build a list to compare test and panel combinations, with one blood-draw fee in your GoodLabs estimate.
$12 blood draw per visit, added once to your order.
Collection fee is additional; not included in this test price.
Does insurance cover WBC Count testing?
When a clinician orders WBC Count for a diagnosis or to follow a known condition, most plans cover it — and many cover routine screening as $0 preventive care for eligible adults. The catch is you need a qualifying reason and an in-network order; a “I just want to see my number” request often isn’t covered, and if you haven’t met your deductible you can end up paying the lab’s full list price anyway.
The direct-pay prices above skip insurance entirely: you pay the cash price, test on your own schedule with no doctor visit, and it’s HSA/FSA-eligible. For a single marker that’s often cheaper — and faster — than a copay plus deductible exposure.
WBC Count inside a bundle
Every compared membership/panel that includes WBC Count, cheapest first. Worth it when you want several markers at once rather than a single test.
| Provider | Model | Advertised panel | Price |
|---|---|---|---|
| Labcorp OnDemand | One-time à-la-carte | 47+ 36 biomarkers mapped | $169 comp. |
| Empirical Health | One-time panel | 100+ 46 biomarkers mapped | $190 one-time |
| Mito Health | At-cost marketplace + optional membership | 100+ 63 biomarkers mapped | Core Panel ~$198 |
| Superpower | Annual membership | 103+ 73 biomarkers mapped | $199/yr |
| Hundred | Annual membership | 160+ 74 biomarkers mapped | $199/yr |
| Function Health | Annual membership | 160+ 88 biomarkers mapped | $365/yr |
| Blueprint (Bryan Johnson) | Annual membership | 160+ 88 biomarkers mapped | $365/yr |
| Everlywell 360 | Annual membership | 83+ 35 biomarkers mapped | $399/yr |
| Quest Health (Elite) | One-time direct-pay | 85+ 49 biomarkers mapped | $399 one-time |
| HealthieOne | One-time test | 250+ 50 biomarkers mapped | $420/test + draw |
| Life Extension (Elite) | One-time à-la-carte | 45+ 49 biomarkers mapped | ~$449 one-time |
| InsideTracker | Membership + à-la-carte tests | 48+ 46 biomarkers mapped | $489 (1st test) |
| Marek Health | Annual membership | 80+ 55 biomarkers mapped | ~$495/yr |
| OneTwenty | Annual membership | 85+ 51 biomarkers mapped | $499/yr |
| Thorne Advanced | One-time panel | 60+ 51 biomarkers mapped | ~$830 one-time |
| Lifeforce | Subscription + diagnostic | 51+ 49 biomarkers mapped | ~$2,137/yr |
What WBC Count is
The total count of circulating immune cells, which rises with infection, inflammation, stress, and steroids and falls with marrow suppression — a crude index of systemic inflammatory tone.
Why it matters for longevity & performance
Lower-normal total WBC associates with lower all-cause and cardiovascular mortality (less chronic inflammation); longevity clinics favor the low end and watch the neutrophil-to-lymphocyte ratio.
WBC Count & peptides — what to watch
If you’re running peptides, TRT or HRT, these are the compounds studied in relation to WBC Count — useful for deciding what to track. Research associations for monitoring, not medical or dosing advice. Tap one for its full profile.
WBC Count testing — frequently asked
Do I need to fast for a WBC Count test?
No. WBC Count does not require fasting — you can test any time of day.
Do I need a doctor's order to get a WBC Count test?
No. Direct-to-consumer labs (GoodLabs, Ulta, Quest and Labcorp OnDemand) include the physician order in the price — you order online and visit a draw site, no appointment with your own doctor needed.
How fast are WBC Count results?
Usually 1–3 business days after your blood draw; most results post to the lab's online portal.
What's the difference between the standard and optimal WBC Count range?
Reference intervals describe results in a reference population; they do not by themselves diagnose or exclude disease. A treatment target depends on the condition and the person. A separate universal ‘optimal’ interval is not established in the cited guidance. The goal depends on why you were tested; aiming for the middle or an extreme of the reference interval is not a treatment plan.
Which peptides affect WBC Count?
Compounds studied in relation to WBC Count include Thymosin Alpha-1, Thymalin. These are research associations for monitoring — not medical or dosing advice.
Does insurance cover WBC Count testing?
Often, when ordered for a diagnosis; many plans cover it as preventive care at no cost for eligible adults. The direct-pay prices above let you skip insurance and test on your own schedule.
Related Complete Blood Count biomarkers
Educational guidance. Use your reporting lab’s reference interval and discuss personal targets and results with your clinician.