LabTestSuperstore.
Range Atlas

AI-collected, not medically reviewed. Compare source context, not your health status.

Choose the units printed on your report.

Hemoglobin A1c (HbA1c / A1c): ranges and targets

9 sources / 11 ranges · %

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Categories and treatment goals are not interchangeable. Blank chart areas do not mean normal. Display values are rounded.

Shared scale (%)

45.57

Laboratory reference intervals

Mayo Clinic Laboratories

Source reference interval

United States · Any sex · adult

Mayo adult reference range and ADA interpretation

4 to 5.6 %

45.57
Source details: Mayo Clinic Laboratories, Source reference interval
Native values:
4 to 5.6 %
Context:
Mayo adult reference range and ADA interpretation
Population / collection / assay:
any; adult. Mayo adult reference range and ADA interpretation Any additional details not recorded here remain unspecified.
Source date/version:
Not recorded
Last verified in this pass:
Not rechecked. Recorded access: 2026-06-06.
Verification:
verified_numeric_source. Inherited extraction, not rechecked in the September 20 pass. Endpoint inclusion, source version and any context absent from the original record remain unverified.
Endpoint inclusion is not verified. A boundary label does not imply ≤ or ≥.
Locator:
Original source link and basis note
Read Mayo Clinic Laboratories (new tab)

Labcorp

Source reference interval

United States · Any sex · adult

Labcorp HbA1c normal range; lower bound 4.8 percent vs Mayo 4.0 percent.

4.8 to 5.6 %

45.57
Source details: Labcorp, Source reference interval
Native values:
4.8 to 5.6 %
Context:
Labcorp HbA1c normal range; lower bound 4.8 percent vs Mayo 4.0 percent.
Population / collection / assay:
any; adult. Labcorp HbA1c normal range; lower bound 4.8 percent vs Mayo 4.0 percent. Any additional details not recorded here remain unspecified.
Source date/version:
Not recorded
Last verified in this pass:
Not rechecked. Recorded access: 2026-06-11.
Verification:
verified_numeric_source. Inherited extraction, not rechecked in the September 20 pass. Endpoint inclusion, source version and any context absent from the original record remain unverified.
Endpoint inclusion is not verified. A boundary label does not imply ≤ or ≥.
Locator:
Original source link and basis note
Read Labcorp (new tab)

Clinical categories and treatment goals

CDC

Source category

United States · Any sex · adult

CDC prediabetes A1c range, an elevated zone

5.7 to 6.4 %

45.57
Source details: CDC, Source category
Native values:
5.7 to 6.4 %
Context:
CDC prediabetes A1c range, an elevated zone
Population / collection / assay:
any; adult. CDC prediabetes A1c range, an elevated zone Any additional details not recorded here remain unspecified.
Source date/version:
Not recorded
Last verified in this pass:
Not rechecked. Recorded access: 2026-06-06.
Verification:
verified_numeric_source. Inherited extraction, not rechecked in the September 20 pass. Endpoint inclusion, source version and any context absent from the original record remain unverified.
Endpoint inclusion is not verified. A boundary label does not imply ≤ or ≥.
Locator:
Original source link and basis note
Read CDC (new tab)

medix Switzerland diabetes guideline

Source category

Switzerland · Any sex · adult

Swiss medix guideline says HbA1c at or above 6.5 percent is diagnostic for diabetes

Lower boundary 6.5 %

45.57

Arrow: continues beyond the displayed scale.

Source details: medix Switzerland diabetes guideline, Source category
Native values:
Lower boundary 6.5 %
Context:
Swiss medix guideline says HbA1c at or above 6.5 percent is diagnostic for diabetes
Population / collection / assay:
any; adult. Swiss medix guideline says HbA1c at or above 6.5 percent is diagnostic for diabetes Any additional details not recorded here remain unspecified.
Source date/version:
Not recorded
Last verified in this pass:
Not rechecked. Recorded access: 2026-06-06.
Verification:
verified_numeric_source. Inherited extraction, not rechecked in the September 20 pass. Endpoint inclusion, source version and any context absent from the original record remain unverified.
Endpoint inclusion is not verified. A boundary label does not imply ≤ or ≥.
Locator:
Original source link and basis note
Read medix Switzerland diabetes guideline (new tab)

Diabetes UK

Diabetes management target

United Kingdom · Any sex · adult

Diabetes UK says ideal HbA1c in diabetes is 48 mmol/mol or 6.5 percent or below

Upper boundary 6.5 %

45.57

Arrow: continues beyond the displayed scale.

Source details: Diabetes UK, Diabetes management target
Native values:
Upper boundary 6.5 %
Context:
Diabetes UK says ideal HbA1c in diabetes is 48 mmol/mol or 6.5 percent or below
Population / collection / assay:
any; adult. Diabetes UK says ideal HbA1c in diabetes is 48 mmol/mol or 6.5 percent or below Any additional details not recorded here remain unspecified.
Source date/version:
Not recorded
Last verified in this pass:
Not rechecked. Recorded access: 2026-06-06.
Verification:
verified_numeric_source. Inherited extraction, not rechecked in the September 20 pass. Endpoint inclusion, source version and any context absent from the original record remain unverified.
Endpoint inclusion is not verified. A boundary label does not imply ≤ or ≥.
Locator:
Original source link and basis note
Read Diabetes UK (new tab)

NICE type 2 diabetes guideline

Source treatment goal

United Kingdom · Any sex · adult

NICE target setting includes 48 mmol/mol or 6.5 percent as a treatment goal

Upper boundary 6.5 %

45.57

Arrow: continues beyond the displayed scale.

Source details: NICE type 2 diabetes guideline, Source treatment goal
Native values:
Upper boundary 6.5 %
Context:
NICE target setting includes 48 mmol/mol or 6.5 percent as a treatment goal
Population / collection / assay:
any; adult. NICE target setting includes 48 mmol/mol or 6.5 percent as a treatment goal Any additional details not recorded here remain unspecified.
Source date/version:
Not recorded
Last verified in this pass:
Not rechecked. Recorded access: 2026-06-06.
Verification:
verified_numeric_source. Inherited extraction, not rechecked in the September 20 pass. Endpoint inclusion, source version and any context absent from the original record remain unverified.
Endpoint inclusion is not verified. A boundary label does not imply ≤ or ≥.
Locator:
Original source link and basis note
Read NICE type 2 diabetes guideline (new tab)

Australia Healthdirect

Source category

Australia · Any sex · adult

Australia Healthdirect uses HbA1c 6.5 percent or more as the diabetes range

Lower boundary 6.5 %

45.57

Arrow: continues beyond the displayed scale.

Source details: Australia Healthdirect, Source category
Native values:
Lower boundary 6.5 %
Context:
Australia Healthdirect uses HbA1c 6.5 percent or more as the diabetes range
Population / collection / assay:
any; adult. Australia Healthdirect uses HbA1c 6.5 percent or more as the diabetes range Any additional details not recorded here remain unspecified.
Source date/version:
Not recorded
Last verified in this pass:
Not rechecked. Recorded access: 2026-06-06.
Verification:
verified_numeric_source. Inherited extraction, not rechecked in the September 20 pass. Endpoint inclusion, source version and any context absent from the original record remain unverified.
Endpoint inclusion is not verified. A boundary label does not imply ≤ or ≥.
Locator:
Original source link and basis note
Read Australia Healthdirect (new tab)

MedlinePlus (NLM) / 3 ranges

Normal category

United States · Any sex · adult

Diagnostic categories, not personal treatment goals or gestational-diabetes criteria. Red-cell, kidney and liver conditions can affect reliability.

< 5.7 %

45.57

Arrow: continues beyond the displayed scale.

Source details: MedlinePlus (NLM), Normal category
Native values:
< 5.7 %
Context:
Diagnostic context, not a personal diagnosis or treatment goal. Repeat or other testing may be needed. Not for gestational diabetes; red-cell disorders and kidney or liver disease can affect reliability.
Population / collection / assay:
any; adult. Diagnostic categories, not personal treatment goals or gestational-diabetes criteria. Red-cell, kidney and liver conditions can affect reliability. Any additional details not recorded here remain unspecified.
Source date/version:
2025-05-20
Last verified in this pass:
2026-09-20. Recorded access: 2026-09-20.
Verification:
verified_numeric_source. Publisher-hosted text checked September 20, 2026. Not a medical review.
Locator:
What do the results mean?
Read MedlinePlus (NLM) (new tab)

Prediabetes category

United States · Any sex · adult

Diagnostic categories, not personal treatment goals or gestational-diabetes criteria. Red-cell, kidney and liver conditions can affect reliability.

5.7 to 6.4 %

45.57
Source details: MedlinePlus (NLM), Prediabetes category
Native values:
5.7 to 6.4 %
Context:
Diagnostic context, not a personal diagnosis or treatment goal. Repeat or other testing may be needed. Not for gestational diabetes; red-cell disorders and kidney or liver disease can affect reliability.
Population / collection / assay:
any; adult. Diagnostic categories, not personal treatment goals or gestational-diabetes criteria. Red-cell, kidney and liver conditions can affect reliability. Any additional details not recorded here remain unspecified.
Source date/version:
2025-05-20
Last verified in this pass:
2026-09-20. Recorded access: 2026-09-20.
Verification:
verified_numeric_source. Publisher-hosted text checked September 20, 2026. Not a medical review.
Locator:
What do the results mean?
Read MedlinePlus (NLM) (new tab)

Diabetes category

United States · Any sex · adult

Diagnostic categories, not personal treatment goals or gestational-diabetes criteria. Red-cell, kidney and liver conditions can affect reliability.

≥ 6.5 %

45.57

Arrow: continues beyond the displayed scale.

Source details: MedlinePlus (NLM), Diabetes category
Native values:
≥ 6.5 %
Context:
Diagnostic context, not a personal diagnosis or treatment goal. Repeat or other testing may be needed. Not for gestational diabetes; red-cell disorders and kidney or liver disease can affect reliability.
Population / collection / assay:
any; adult. Diagnostic categories, not personal treatment goals or gestational-diabetes criteria. Red-cell, kidney and liver conditions can affect reliability. Any additional details not recorded here remain unspecified.
Source date/version:
2025-05-20
Last verified in this pass:
2026-09-20. Recorded access: 2026-09-20.
Verification:
verified_numeric_source. Publisher-hosted text checked September 20, 2026. Not a medical review.
Locator:
What do the results mean?
Read MedlinePlus (NLM) (new tab)

Named clinician and other published views

Mark Hyman

Published view

Named view · Any sex · adult

Mark Hyman says ideally HbA1c should be less than 5.5 percent

Upper boundary 5.5 %

45.57

Arrow: continues beyond the displayed scale.

Source details: Mark Hyman, Published view
Native values:
Upper boundary 5.5 %
Context:
Mark Hyman says ideally HbA1c should be less than 5.5 percent
Population / collection / assay:
any; adult. Mark Hyman says ideally HbA1c should be less than 5.5 percent Any additional details not recorded here remain unspecified.
Source date/version:
Not recorded
Last verified in this pass:
Not rechecked. Recorded access: 2026-06-06.
Verification:
verified_numeric_source. Inherited extraction, not rechecked in the September 20 pass. Endpoint inclusion, source version and any context absent from the original record remain unverified.
Endpoint inclusion is not verified. A boundary label does not imply ≤ or ≥.
Locator:
Original source link and basis note
Read Mark Hyman (new tab)

NGSP percent and IFCC mmol/mol use an offset as well as a multiplier. Diagnostic categories and treatment goals are different uses. Source comparison in common US units

2 source rows are withheld pending primary-source verification. Withheld numbers are not included in the chart or public dataset.

Methodology, units and limitations

AI-collected source-comparison prototype. Not medically reviewed. Not a diagnostic tool. Reference intervals describe a source population; categories and treatment goals have different purposes. Named views do not establish a universal optimum. Country identifies a source, not a biological normal for everyone there.

Source counts use stable publisher IDs; one source may supply several legitimate categories. Source dates and recorded access dates are separate. Older rows explicitly marked not rechecked have not received a new source review. Missing age, fasting, assay and risk details are not inferred.

Strict < and > differ from inclusive ≤ and ≥. Approximate and unknown boundaries are labeled, not converted into exact cutoffs. Printed endpoint precision is preserved; gaps between source categories are not silently filled.

Bars show only the visible portion of each interval. Arrows indicate continuation; small intervals are not enlarged to imply a wider range. Display rounding does not change stored values. Numerically equivalent units do not change the numbers.

Personal-result entry is not available in this release. Do not enter health results into the marker finder. The tool does not classify you, recommend treatment or adjust ranges for your age.