---
title: "Hemoglobin A1c (HbA1c) Test: What It Measures"
description: "A hemoglobin A1c test estimates your 2–3 month average blood sugar and helps screen or monitor diabetes, with easy ordering through Vitals Vault labs."
canonical: "https://www.vitalsvault.com/biomarkers/hemoglobin-a1c"
last-updated: 2026-08-22
---

# Hemoglobin A1c (HbA1c) Test: What It Measures

> A hemoglobin A1c test estimates your 2–3 month average blood sugar and helps screen or monitor diabetes, with easy ordering through Vitals Vault labs.

---

Canonical HTML: https://www.vitalsvault.com/biomarkers/hemoglobin-a1c
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