Pregnancy

Blood sugar levels in pregnancy

The one place where the numbers really are different — and they are lower, not higher.

Reference range — pregnancy

5.1mmol/L fasting

Under the WHO 2013 criteria, gestational diabetes is identified from a fasting plasma glucose of 5.1–6.9 mmol/L (92–125 mg/dL), a one-hour value of 10.0 mmol/L (180 mg/dL) or above, or a two-hour value of 8.5–11.0 mmol/L (153–199 mg/dL). One value at or beyond any of the three is enough to meet the criterion.

Lower than the adult bands, not higher. Do not read a pregnancy result against the general adult table.

स्रोत·WHO 2013, hyperglycaemia first detected in pregnancy·Geneva, 2013·समीक्षित जुलाई 2026

यह पृष्ठ संदर्भ जानकारी है, चिकित्सा सलाह नहीं।

यहाँ कुछ भी आपका निदान नहीं कर सकता, और यहाँ कुछ भी इलाज की योजना नहीं है। रक्त शर्करा के नतीजों की व्याख्या डॉक्टर आपके इतिहास, आपके लक्षणों और दोबारा की गई जाँच के साथ मिलाकर करते हैं — स्क्रीन पर दिखा एक आँकड़ा निदान नहीं होता। अगर कोई भी रीडिंग आपको चिंता में डालती है, या आपकी तबीयत ठीक नहीं लगती, तो वेबसाइट के बजाय डॉक्टर को दिखाइए।

Clinical note

Everywhere else on this site the thresholds are the same regardless of age. Pregnancy is the genuine exception, and it moves in the opposite direction to what the age charts suggest.

Under the WHO 2013 criteria, gestational diabetes is diagnosed from a fasting plasma glucose of 5.1 mmol/L — 92 mg/dL — which outside pregnancy would be an unremarkable result well inside the normal range. The two-hour threshold, 8.5 mmol/L (153 mg/dL), is likewise far below the 200 mg/dL used for non-pregnant adults. One value at or beyond any of the three limits is enough.

World Health Organization 2013 criteria for gestational diabetes mellitus — hyperglycaemia first detected in pregnancy. One value at or beyond these limits is enough.
Measurement	mmol/L	mg/dL
Fasting	5.1 – 6.9	92 – 125
1 hour after a 75 g glucose load	10.0 or above	180 or above
2 hours after a 75 g glucose load	8.5 – 11.0	153 – 199

A fasting value of 7.0 mmol/L (126 mg/dL) or above, or a 2-hour value of 11.1 mmol/L (200 mg/dL) or above, is classified by WHO as diabetes in pregnancy rather than gestational diabetes — a different category with different follow-up. Pregnancy testing is arranged and interpreted by your obstetric team.

Indian obstetric practice also uses a single-step non-fasting test in some settings, and different institutions follow different protocols. Which test you are given, when in the pregnancy, and how the result is acted on are decisions for your obstetric team.

Do not use the general adult table on this page to interpret a result taken during pregnancy. The thresholds are different, the follow-up is different, and pregnancy also changes red-cell turnover, which is one reason HbA1c is not used as the primary test. Take every result to the doctor managing your pregnancy.

How a published range becomes the line on your report

A specimen is drawn under a stated condition — fasting means at least eight hours with nothing but water; the two-hour value means two hours into a standardised 75 g glucose drink, not two hours after dinner.
The laboratory reports a concentration: mg/dL in India, mmol/L in the UK, Australia and most of Europe. The measurement is identical; only the unit differs.
That concentration is read against a published cut-point — a figure a named body wrote down in a dated document, not a figure derived from the population being tested.
Two bodies publish, and they agree everywhere except one number. This site prints both rather than picking the one that makes a tidier table.
Confirmation, then interpretation, both belong to a clinician. A value on either side of a cut-point is a reason to see a doctor, never a conclusion.

mmol/L = mg/dL ÷ 18.016
ADA fasting cut-points   99 · 100-125 · 126
WHO fasting cut-points  109 · 110-125 · 126

पूरी विधि →

Comparison panel

For comparison — the non-pregnant adult criteria

Shown only so the size of the difference is visible. Do not read a pregnancy result against this table.

Test results used to identify normal glucose, prediabetes and diabetes in non-pregnant adults, as published by the American Diabetes Association and restated by the US National Institute of Diabetes and Digestive and Kidney Diseases. The mmol/L column is converted from the published mg/dL figures at 18.016 mg/dL per mmol/L.
Result	Published value	Same value in mmol/L
Fasting plasma glucose — at least 8 hours with no food
सामान्य	99 mg/dL or below	5.5 mmol/L or below
प्रीडायबिटीज़	100 to 125 mg/dL	5.6 – 6.9 mmol/L
डायबिटीज़ की रेंज में	126 mg/dL या उससे ज़्यादा	7.0 mmol/L या उससे ज़्यादा
2 hours into a 75 g oral glucose tolerance test
सामान्य	139 mg/dL or below	7.7 mmol/L or below
प्रीडायबिटीज़	140 to 199 mg/dL	7.8 – 11.0 mmol/L
डायबिटीज़ की रेंज में	200 mg/dL या उससे ज़्यादा	11.1 mmol/L या उससे ज़्यादा
HbA1c
सामान्य	below 5.7%	—
प्रीडायबिटीज़	5.7% to 6.4%	—
डायबिटीज़ की रेंज में	6.5% or above	—
Random (any time of day)
डायबिटीज़ की रेंज में	200 mg/dL या उससे ज़्यादा with the classic symptoms of high blood glucose	11.1 mmol/L या उससे ज़्यादा

A result in the diabetes range is not a diagnosis. Published criteria require confirmation — normally a repeat of the same test on a separate day, unless someone has unmistakable symptoms with a clearly raised glucose. Your doctor makes that call, not a chart.

स्रोत·ADA Standards of Care 2025 · WHO 2013 (pregnancy)·two different criteria, shown side by side·समीक्षित जुलाई 2026

स्रोत: American Diabetes Association, Standards of Care in Diabetes — Diagnosis and Classification of Diabetes. Diabetes Care 2025;48(Suppl. 1):S27–S49. लिंक
स्रोत: World Health Organization. Diagnostic criteria and classification of hyperglycaemia first detected in pregnancy. Geneva: WHO, 2013. लिंक

PeakForm एक ट्रेनिंग और जवाबदेही कार्यक्रम है। यह डायबिटीज़ या प्रीडायबिटीज़ का इलाज नहीं है, यह आपके डॉक्टर की सलाह का विकल्प नहीं है, और इस साइट पर दी किसी भी बात पर डॉक्टर से बात किए बिना अमल नहीं करना चाहिए।

अन्य आयु वर्ग

Children and teenagersवही सीमाएँ वयस्क 18 से 30वही सीमाएँ वयस्क 30 से 45वही सीमाएँ वयस्क 45 से 60वही सीमाएँ Adults 60 and aboveवही सीमाएँ Pregnancydifferent thresholds

Why the age-banded charts you have seen elsewhere are not published by anyone →

इस रिपोर्ट में जिन सवालों की उम्मीद की गई है

What is a normal fasting blood sugar level?

On the American Diabetes Association criteria, 99 mg/dL (5.5 mmol/L) or below. 100 to 125 mg/dL is the prediabetes range and 126 mg/dL or above is in the diabetes range. WHO uses the same 126 mg/dL diabetes threshold but places the lower edge of impaired fasting glucose at 110 mg/dL rather than 100.

What is a normal sugar level after eating?

The published thresholds — 140 and 200 mg/dL at two hours — are written for a standardised 75 g oral glucose tolerance test, not for an ordinary meal. A post-prandial reading after home food is not the same measurement and varies with what was eaten. Doctors do use post-meal readings, interpreted alongside everything else about you.

Does the normal blood sugar range change with age?

No. The diagnostic thresholds published by WHO and the American Diabetes Association are the same for every adult age. Popular "sugar level by age" charts are not published by any health authority. Pregnancy is the one genuine exception, and its thresholds are lower, not higher.

Is one high reading enough to diagnose diabetes?

No. The published criteria require confirmation — normally a repeat of the same test on a separate day — unless someone has unmistakable symptoms alongside a clearly raised glucose. A single number is a reason to see a doctor, not a diagnosis.

What is the normal blood sugar level for pregnancy?

The same as for any other non-pregnant adult: fasting 99 mg/dL or below, two-hour glucose tolerance test 139 mg/dL or below, and HbA1c below 5.7% on the ADA criteria. There is no separate published range for this age group.

Pregnancy thresholds from the WHO 2013 guideline on hyperglycaemia first detected in pregnancy. General information only — NOT medical advice, and never a diagnosis. Only a doctor can interpret your results and diagnose or treat diabetes. If a reading concerns you, see a doctor rather than a website. Every threshold, equation and glycemic index value used on this site is listed with its publication on the डेटा & तरीक़ा पृष्ठ पर, और हर प्रकाशन उसकी जारीकर्ता संस्था और तारीख के साथ सूचीबद्ध है स्रोत सूची.

स्रोत·प्रकाशित संदर्भ सीमाएँ + GI तालिकाएँ·समीक्षित जुलाई 2026

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