HALP Score Calculator

Calculates the haemoglobin, albumin, lymphocyte and platelet (HALP) score. Includes field guidance, formula provenance, interpretation and Learn More content.

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HALP Score
Clinical Decision Tool

Calculates the haemoglobin, albumin, lymphocyte and platelet (HALP) score.

Use haemoglobin in g/L.
Use albumin in g/L.
Use an absolute count.
Use platelet count in 10⁹/L.
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Clinical Decision Support Only

MediCalc calculators are intended to support qualified healthcare professionals and must not replace professional clinical judgement. Do not enter patient-identifiable information into Saved Progress.

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Learn More About HALP Score
MedicalC Knowledge Hub

HALP Score: Clinical Guide

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Calculates the haemoglobin, albumin, lymphocyte and platelet (HALP) score.

Overview

Calculates the haemoglobin, albumin, lymphocyte and platelet (HALP) score.

Clinical Significance

An observational prognostic index studied mainly in oncology. Cut-offs are tumour- and cohort-specific and should not be generalised.

How It Is Calculated

  • HALP = haemoglobin × albumin × lymphocytes / platelets.

Interpretation

  • An observational prognostic index studied mainly in oncology. Cut-offs are tumour- and cohort-specific and should not be generalised.

Worked Example

Enter a clinically consistent set of values in the displayed units. MedicalC applies: HALP = haemoglobin × albumin × lymphocytes / platelets.

Limitations

  • This tool does not establish a diagnosis or mandate treatment.
  • Published cut-offs may vary between cohorts and measurement methods.
  • Calculation precision cannot compensate for poor source data.

Clinical Pearls

  • Trend the result over time where clinically appropriate.
  • Record the source values and units alongside the calculated result.

Common Mistakes

  • Using the wrong unit.
  • Combining measurements obtained at different times.
  • Applying a research-derived threshold as a universal treatment trigger.

Frequently Asked Questions

What does this calculator provide?

Calculates the haemoglobin, albumin, lymphocyte and platelet (HALP) score.

Can this result be used alone?

No. It must be interpreted with clinical context and appropriate investigations.

What equation is used?

HALP = haemoglobin × albumin × lymphocytes / platelets.

What is the main limitation?

The result depends on valid inputs and may not be calibrated for every population or setting.

References

  1. Chen XL et al. A new inflammation-based score (HALP) predicts survival in patients with gastric carcinoma. Oncotarget. 2015. — Formula, physiological or validation reference.

Reviewed by: MedicalC Clinical Editorial Team
Last reviewed: July 2026

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Reviewed by: MedicalC Clinical Editorial Team Last reviewed: July 2026

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Clinical Disclaimer

MedicalC calculators and clinical tools are intended to support healthcare professionals. They do not replace clinical judgement, individual patient assessment, local guidance or specialist advice.

Results should always be interpreted in the context of the patient’s history, examination, investigations, current clinical condition and applicable professional guidance.

Reviewed by: MedicalC Clinical Editorial Team Last reviewed: July 2026
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