HbA1c (%) to Estimated Average Glucose (eAG mg/dL & mmol/L) & IFCC mmol/mol Calculator

Convert HbA1c (%) to ADAG Estimated Average Glucose (mg/dL & mmol/L) and IFCC mmol/mol.

Estimated Average Glucose (eAG)
136.98 mg/dL
Estimated Average Glucose (mmol/L) 7.6 mmol/L
IFCC HbA1c Standard Unit 46.45 mmol/mol
NGSP HbA1c Input 6.4 %
Inputs
⚡ Scenarios:
% HbA1c
NGSP Hemoglobin A1c percentage (%).
Results & Graph
Estimated Average Glucose (eAG)
136.98 mg/dL
Estimated Average Glucose (mmol/L)
7.6 mmol/L
IFCC HbA1c Standard Unit
46.45 mmol/mol
NGSP HbA1c Input
6.4 %

Estimated Average Glucose (eAG)

Graph 1 • HbA1c ↔ eAG & IFCC • Domain Architecture & Live Telemetry Maps Hba1c Percent through HbA1c ↔ eAG & IFCC Formula.
HbA1c ↔ eAG & IFCC • Clinical & Physiological Reference Scale Low / Baseline Target / Reference Elevated / Watch High / Action Estimated Average Glucose (eAG): 136.98 mg/dL Estimated Average Glucose 7.6 mmol/L IFCC HbA1c Standard Unit 46.45 mmol/mol NGSP HbA1c Input 6.4 %
Graph 2 • Estimated Average Glucose (eAG) Across Hba1c Percent Sweep (40% → 160%) Evaluates eAG (mg/dL) = 28.7 × HbA1c_% − 46.7; eAG (mmol/L) = eAG_mg_dL / 18.018 across 7 operating points (current input highlighted).
0 mg/dL 136.0 mg/dL 271.9 mg/dL 53.75 2.56 63.51 3.84 100.2 5.12 137.0 6.40 173.7 7.68 210.4 8.96 247.2 10.24
Graph 3 • HbA1c ↔ eAG & IFCC Multi-Scenario Envelope Shows how Estimated Average Glucose (eAG) responds across ±30% scenario shifts.
0 mg/dL 105.6 mg/dL 211.3 mg/dL 81.88 -30% 109.4 -15% 137.0 +0% 164.5 +15% 192.1 +30%
Summary: An HbA1c of 6.4% corresponds to an Estimated Average Glucose (eAG) of 137 mg/dL (7.6 mmol/L) and 46.4 mmol/mol on the IFCC scale.
Summary: An HbA1c of 6.4% corresponds to an Estimated Average Glucose (eAG) of 137 mg/dL (7.6 mmol/L) and 46.4 mmol/mol on the IFCC scale.
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Formula & Mathematical Methodology: HbA1c ↔ eAG & IFCC Formula

eAG (mg/dL) = 28.7 × HbA1c_% − 46.7
eAG (mmol/L) = eAGmgdL / 18.018
IFCC (mmol/mol) = 10.929 × (HbA1c_% − 2.15)
eAG (mg/dL) = 28.7 × HbA1c_% − 46.7; eAG (mmol/L) = eAG_mg_dL / 18.018; IFCC (mmol/mol) = 10.929 × (HbA1c_% − 2.15)
  • hba1cPercent: Hba1c Percent (% HbA1c)

Rounding: Clinical scores round to statutory integer or decimal precision; physiological metrics round to 2 decimal places.

Worked Example: Clinical / Physiology Scenario: HbA1c ↔ eAG & IFCC

Convert HbA1c (%) to ADAG Estimated Average Glucose (mg/dL & mmol/L) and IFCC mmol/mol.

  1. Enter lab values, anthropometric measurements, or performance test metrics.
  2. Evaluate the reference equation: eAG (mg/dL) = 28.7 × HbA1c_% − 46.7; eAG (mmol/L) = eAG_mg_dL / 18.018; IFCC (mmol/mol) = 10.929 × (HbA1c_% − 2.15).
  3. Inspect the primary classification, supporting indices, and 3 SVG charts.
Result: Computes HbA1c ↔ eAG & IFCC via eAG (mg/dL) = 28.7 × HbA1c_% − 46.7; eAG (mmol/L) = eAG_mg_dL / 18.018; IFCC (mmol/mol) = 10.929 × (HbA1c_% − 2.15).

Frequently Asked Questions

How does the HbA1c (%) to Estimated Average Glucose (eAG mg/dL & mmol/L) & IFCC mmol/mol Calculator compute its result?

It evaluates eAG (mg/dL) = 28.7 × HbA1c_% − 46.7; eAG (mmol/L) = eAG_mg_dL / 18.018; IFCC (mmol/mol) = 10.929 × (HbA1c_% − 2.15) directly in your browser and updates three custom SVG visualizations in real time.

Can I use Goal Seek to solve backwards for a target lab value or pace?

Yes. Click "🎯 Goal Seek" in the results toolbar to solve backwards for any numeric input parameter.

Are my health and biometric inputs kept private?

Yes. All calculations run 100% locally on your device with zero external transmission.

Health & Fitness · Metabolic & Endocrine Health

HbA1c (%) to Estimated Average Glucose (eAG mg/dL & mmol/L) & IFCC mmol/mol Calculator: inputs, method, and how to read the result

Convert HbA1c (%) to ADAG Estimated Average Glucose (mg/dL & mmol/L) and IFCC mmol/mol.

Choose inputs for the case you are checking

The defaults are illustrative. Replace them with values for your case and keep the units shown beside each field.

  • Hba1c Percent: NGSP Hemoglobin A1c percentage (%).

What the calculation includes

With the default values shown, Estimated Average Glucose (eAG) is 136.98 mg/dL. The calculation follows HbA1c ↔ eAG & IFCC Formula; the formula and variable definitions above show how the inputs combine.

One-input check: With the other defaults held constant, changing Hba1c Percent from 6.4 % HbA1c to 7.04 % HbA1c changes Estimated Average Glucose (eAG) from 136.98 mg/dL to 155.35 mg/dL. This is a comparison inside the calculator's stated model, not a prediction.

Where to use caution

  • Uses peer-reviewed clinical and sports physiology formulas.
  • For educational and informational reference only; clinical scores do not replace physician judgment or laboratory reference ranges.

Scope: Global Clinical & Sports Science Consensus Check the assumptions and limitations against your situation before relying on the estimate.

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