CalcOpenly
한국어

Blood sugar converter (mg/dL to mmol/L)

Glucose from mg/dL to mmol/L and back, and HbA1c to estimated average glucose (eAG) and IFCC mmol/mol, with ADA categories.

업데이트 검증한 예제: 7

mg/dL
추가 옵션
시도하기
결과
mmol/L
결과: 5.55 mmol/L
최대 소수 자릿수: 2; 가장 가까운 값, 중간값은 0에서 먼 쪽으로
If this is a fasting reading (ADA)
Prediabetes
Informational only. Diagnosis uses laboratory plasma glucose or HbA1c tests, repeated, not a converter.

100 mg/dL is 5.55 mmol/L using 18.016 mg/dL per mmol/L; as a fasting reading it falls in the “Prediabetes” band.

Where a fasting reading sits

Diabetes range (fasting)305470100126250100 mg/dL
계산 방법 S

  1. Divide by the factor

    100 mg/dL18.016=5.55 mmol/L\frac{100\ \text{mg/dL}}{18.016} = 5.55\ \text{mmol/L}

  2. Why this factor

    Glucose weighs 180.16 g/mol, so 1 mmol/L is 18.016 mg/dL. The other common choice is 18 (a rounded factor many meters use); the two differ by less than 0.1 %.

  3. Fasting category

    As a fasting reading, 100 mg/dL is “Prediabetes” (ADA: < 70 low, 70–99 normal, 100–125 prediabetes, ≥ 126 diabetes range).

Blood sugar converter (mg/dL to mmol/L) 소개

Glucose converts between units through its molar mass: 1 mmol/L is 18.016 mg/dL (180.16 g/mol ÷ 10), which many meters and tables round to 18. HbA1c converts to estimated average glucose (eAG) with the ADAG regression, eAG in mg/dL = 28.7 × A1c − 46.7, and to IFCC units in mmol/mol with the NGSP–IFCC master equation. Results are placed in the American Diabetes Association (ADA) categories.

People use it to read results reported in the other unit, such as a US meter against a UK lab report. 100 mg/dL is 5.55 mmol/L, the fasting level where ADA's prediabetes range begins, and an HbA1c of 7 % corresponds to an eAG of 154 mg/dL (8.6 mmol/L) and 53 mmol/mol.

The categories are population thresholds for laboratory tests confirmed by repeat testing, not for a single meter reading. eAG is a regression estimate (R² = 0.84 in the 507-person ADAG study), so an individual's measured average can differ, and anaemia or haemoglobin variants can distort HbA1c.

계산 예제

Boundary: 100 mg/dL → mmol/L

단위 변환
Glucose mg/dL → mmol/L
Glucose
100 mg/dL
결과
5.55 mmol/L
If this is a fasting reading (ADA)
Prediabetes

검증 출처: Python 3.8 decimal: 100 / 18.016 = 5.5506; ADA fasting 100–125 mg/dL is prediabetes

7.0 mmol/L → mg/dL with factor 18

단위 변환
Glucose mmol/L → mg/dL
Glucose
7.0 mmol/L
mg/dL per mmol/L
18
결과
126 mg/dL
If this is a fasting reading (ADA)
Diabetes range

검증 출처: NGSP eAG table pairs 126 mg/dL with 7.0 mmol/L (factor 18); ADA fasting ≥ 126 mg/dL is diabetes range

7.0 mmol/L → mg/dL with factor 18.016

단위 변환
Glucose mmol/L → mg/dL
Glucose
7.0 mmol/L
결과
126.11 mg/dL

검증 출처: Python 3.8 decimal: 7.0 × 18.016 = 126.112

HbA1c 7% → eAG

단위 변환
HbA1c → estimated average glucose
HbA1c
7%
결과
154.2 mg/dL
HbA1c (IFCC)
53 mmol/mol
Estimated average glucose (mmol/L)
8.6 mmol/L
HbA1c category (ADA)
Diabetes range

검증 출처: NGSP table: 7% ↔ 154 mg/dL, 8.6 mmol/L, 53 mmol/mol; ADAG 28.7 × 7 − 46.7 = 154.2

자주 묻는 질문

How do you convert mg/dL to mmol/L?

Divide by 18, or 18.016 exactly, from glucose's molar mass of 180.16 g/mol; to go from mmol/L to mg/dL, multiply. So 100 mg/dL is 5.55 mmol/L and 7.0 mmol/L is 126 mg/dL. The US mostly reports glucose in mg/dL, while the UK, Canada and Australia use mmol/L. The factor applies only to glucose; cholesterol and other substances have their own factors.

What is a normal blood sugar level?

For a fasting test, ADA classes below 100 mg/dL (5.6 mmol/L) as normal, 100–125 mg/dL (5.6–6.9 mmol/L) as prediabetes and 126 mg/dL (7.0 mmol/L) or more, confirmed by repeat testing, as diabetes. Two hours into a 75 g glucose tolerance test the cut-offs are 140 and 200 mg/dL (7.8 and 11.1 mmol/L). For people treated for diabetes, ADA calls a reading below 70 mg/dL (3.9 mmol/L) level 1 hypoglycaemia and below 54 mg/dL (3.0 mmol/L) level 2.

What does an HbA1c of 7 % mean?

It corresponds to an estimated average glucose of 154 mg/dL (8.6 mmol/L) over roughly the previous three months, by the ADAG equation 28.7 × 7 − 46.7, and to 53 mmol/mol in IFCC units. ADA's diagnostic threshold for diabetes is 6.5 % (48 mmol/mol), and below 7 % is the goal ADA suggests for many non-pregnant adults with diabetes, adjusted to the individual.

What HbA1c level is prediabetes?

From 5.7 % to below 6.5 % (39 to 47 mmol/mol) in the ADA criteria, with 6.5 % (48 mmol/mol) or higher, confirmed, in the diabetes range. By the ADAG equation, 5.7 % corresponds to an average glucose of 117 mg/dL (6.5 mmol/L) and 6.5 % to 140 mg/dL (7.8 mmol/L). HbA1c can mislead in anaemia, pregnancy, after blood loss or transfusion, and with some haemoglobin variants.

“Blood sugar converter (mg/dL to mmol/L)”의 정확도는 어느 정도인가요?

정확도는 입력값과 계산 방법의 가정에 따라 달라집니다. 십진 연산은 유효숫자 50자리를 사용하지만, 추정값·수치해석 방법·원본 데이터의 정밀도는 더 낮을 수 있습니다. 표시값을 반올림해도 이러한 한계는 사라지지 않습니다. 독립적인 출처의 풀이와 대조한 계산 예시: 7. 예를 들어 “Boundary: 100 mg/dL → mmol/L”은 Python 3.8 decimal: 100 / 18.016 = 5.5506; ADA fasting 100–125 mg/dL is prediabetes와 대조해 확인합니다.

이 계산 방법의 출처는 무엇인가요?

Nathan DM et al. Translating the A1C assay into estimated average glucose values. Diabetes Care 2008;31(8):1473–1478; NGSP — HbA1c and estimated average glucose (eAG) table; NGSP — IFCC standardization of HbA1c (master equation); American Diabetes Association. Standards of Care in Diabetes—2025, sections 2 (diagnosis) and 6 (glycemic goals and hypoglycemia). Diabetes Care 2025;48(Suppl 1).

이 계산기 소개

mg/dL=mmol/L×18.016eAGmg/dL=28.7×A1c−46.7IFCC=A1c−2.1520.09148\text{mg/dL} = \text{mmol/L} \times 18.016 \qquad \text{eAG}_{\text{mg/dL}} = 28.7 \times \text{A1c} - 46.7 \qquad \text{IFCC} = \frac{\text{A1c} - 2.152}{0.09148}

출처

  1. Nathan DM et al. Translating the A1C assay into estimated average glucose values. Diabetes Care 2008;31(8):1473–1478
  2. NGSP — HbA1c and estimated average glucose (eAG) table
  3. NGSP — IFCC standardization of HbA1c (master equation)
  4. American Diabetes Association. Standards of Care in Diabetes—2025, sections 2 (diagnosis) and 6 (glycemic goals and hypoglycemia). Diabetes Care 2025;48(Suppl 1)

정보 제공용이며 의료 조언이 아닙니다. 이 공식은 집단을 설명하며 개인의 상태를 평가하지 않습니다. 결과에 따라 행동하기 전에 의료진과 상담하세요.

출처와 대조하여 검증

이 계산기에는 독립적인 출처에서 답을 얻은 계산 예제가 7개 있습니다. 테스트 모음에서 실행되며 여기에서도 실행할 수 있습니다.

관련 계산기