Full Blood Test Cost UK: Your 2026 Pricing Guide
If you’ve ever wondered what a full blood test costs in the UK, whether through the NHS or privately, you’re not alone. A full blood count (FBC) is one of the most commonly requested medical tests, and thousands of people search for private testing options every month. With NHS waiting lists stretched and more people taking control of their health, private testing has become increasingly popular.
In this guide, we’ll break down everything you need to know about full blood test costs in the UK, compare NHS and private options, and show you where to get the best value.
What Is a Full Blood Test?
A full blood test, most commonly called a full blood count (FBC) or complete blood count (CBC), is a routine blood test that measures the different types of cells in your blood. It’s often part of a general health check-up or used to investigate symptoms like fatigue, weakness, bruising, or repeated infections.
The test gives your doctor a snapshot of your overall health and can help detect a wide range of conditions, from anaemia and infections to blood clotting disorders and more serious issues.
What Does a Full Blood Count Include?
A standard full blood count measures several key components of your blood:
Red blood cells (RBC) carry oxygen around your body, and low levels can indicate anaemia. Haemoglobin (Hb), the protein inside red blood cells that actually carries the oxygen, is the key marker for diagnosing anaemia. Haematocrit (HCT) is the proportion of your blood made up of red blood cells.
White blood cells (WBC) fight infection, so high or low levels can signal an infection, inflammation, or other immune system issues. Platelets help your blood clot, and abnormal levels can indicate bleeding disorders or clotting problems.
Two further measures round out the panel. Mean corpuscular volume (MCV) records the average size of your red blood cells, which helps determine the type of anaemia. Red cell distribution width (RDW) measures variation in red blood cell size, useful when diagnosing different types of anaemia.
Some private tests also include a white blood cell differential, which breaks down the five types of white blood cells (neutrophils, lymphocytes, monocytes, eosinophils, and basophils) for a more detailed picture of your immune health.
NHS Full Blood Test Costs
On the NHS, a full blood count is free at the point of use. If your GP suspects an underlying condition or you have symptoms that warrant investigation, they will order an FBC as part of routine diagnostics.
However, the NHS route has limitations. You need a GP referral, because you can’t simply request an FBC without a clinical reason. Waiting times can be long: over 1.8 million patients were waiting for diagnostic tests in early 2026, so getting a quick appointment isn’t always straightforward. The NHS typically tests when there’s a specific medical concern rather than for routine wellness monitoring, and depending on your GP surgery, results can take anywhere from a few days to a couple of weeks.
If you simply want to check your baseline health, track a specific marker over time, or get results quickly, private testing offers a convenient alternative.
How Much Does a Private Full Blood Test Cost?
Private full blood test prices in the UK vary depending on the provider, whether you choose a home finger-prick kit or a clinic appointment, and how comprehensive the panel is. Many providers offer general health packages that include a full blood count alongside other important markers like cholesterol, liver function, and kidney function.
Here’s a comparison of FBC test prices across the UK’s leading providers:
| Provider | Test | Price | Delivery |
|---|---|---|---|
| Medichecks | Full Blood Count (FBC) Blood Test | £59 | Clinic or Home |
| Medichecks | Core Health Blood Test | £55 | Clinic or Home |
| Numan | Full Check-up / Core Blood Test | £88 | Home |
| Randox Health | General Health Test (At Home) | £84 | Home |
| Bluecrest Wellness | Blood Health Profile | £85 | Clinic |
| Thriva | General Health Blood Test | £105 | Home |
| Forth | Baseline Blood Test | £135 | Home or Clinic |
| Lola Health | Core Health 45 | £125 | Home (phlebotomist visit) |
Medichecks consistently offers the best value for standalone FBC testing at £59, with the option to visit a clinic for a venous blood draw or use a home finger-prick kit. Their Core Health Blood Test at £55 is cheaper and includes FBC alongside seven other key health markers.
Numan’s Full Check-up at £88 is a competitive home-test option with a money-back guarantee if all results come back normal. Randox Health offers a General Health Test at £84 covering FBC plus liver, kidney, thyroid, and diabetes markers.
Bluecrest Wellness takes a clinic-based approach. Their Blood Health Profile at £85 is part of a wider health MOT with biometric measurements. Forth offers a Baseline Blood Test at £135 with results in 2 working days through their mobile app. Thriva’s General Health test at £105 covers FBC plus a range of other markers. Lola Health sends a phlebotomist to your home for a professional blood draw with their Core Health 45 test.
To compare prices across all providers side by side, visit our compare page to search for full blood count or general health tests.
NHS vs Private: Which Should You Choose?
Choose the NHS if:
- You have a specific medical concern and need a GP assessment
- You’re happy to wait for an appointment and results
- Cost is a barrier to testing
Choose a private blood test if:
- You want fast results (often 24-72 hours)
- You want to test without a GP referral
- You’re monitoring health markers over time
- You want a more comprehensive panel than the NHS offers
- You prefer the convenience of at-home testing
What Else Can a Full Blood Test Tell You?
Beyond the basic cell counts, a full blood count can provide important clues about your health. Low haemoglobin or red blood cells may indicate anaemia, which can be caused by iron deficiency, vitamin B12 deficiency, or chronic disease. High white blood cells can signal infection, inflammation, or stress, while low white blood cells may indicate a viral infection, bone marrow issues, or autoimmune conditions.
Platelets tell their own story. Low platelets can be a sign of certain infections, medication side effects, or autoimmune disorders, and high platelets may indicate inflammation, iron deficiency, or other underlying conditions.
It’s important to remember that a full blood count is a screening tool, not a diagnosis. If any of your results are outside the normal range, share them with your GP for further investigation.
Where to Get a Private Full Blood Test in the UK
You have plenty of options when it comes to private blood testing in the UK. Here’s a quick overview of the main providers.
Medichecks is one of the UK’s largest providers with over 100 tests available. Choose between a clinic appointment or a home finger-prick kit. Results in 24-48 hours. CQC-regulated labs. Trustpilot: 4.5★ (28,500+ reviews).
Thriva offers home finger-prick testing with clear, personalised results. Results in 48-72 hours. Trustpilot: 4.5★ (12,000+ reviews).
BetterYou sells affordable at-home test kits reviewed by NHS-trained clinicians. Results in 48-72 hours. Trustpilot: 4.6★ (8,500+ reviews).
Randox Health provides clinic-based testing backed by world-class laboratory diagnostics. Results in 48-72 hours. Trustpilot: 4.3★ (6,300+ reviews).
Forth is an app-first option for at-home testing, with results in 2 working days and unique health scoring. Trustpilot: 4.1★ (8,500+ reviews).
Bluecrest Wellness runs clinic-based health MOTs at 400+ UK locations. Includes biometric measurements alongside blood panels. Trustpilot: 4.7★ (15,000+ reviews).
Numan offers at-home testing with a Tasso+ device (no finger-prick) or traditional kits. Money-back guarantee if all results are normal. Trustpilot: 4.6★ (33,000+ reviews).
I’d start by deciding between a clinic draw and a finger-prick kit; it narrows the field faster than anything else.
Summary
A full blood test is one of the most valuable health checks you can get. While NHS testing is free with a GP referral, private testing gives you speed, convenience, and choice. Prices for private FBC testing start at £59 for a standalone FBC from Medichecks, with general health packages from £55 (Medichecks Core Health) up to around £135 (Forth Baseline).
To compare all your options in one place, head over to our compare page and find the right test for you.
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Disclaimer: This article is for informational purposes only and is not a substitute for professional medical advice. Always consult a GP or qualified healthcare provider before making decisions about your health.