Folic Acid normal range — check your value

Usually above 3 to 5.9 ng/mL, with labs differing.

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Your Folic Acid test value

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Folic Acid

ng/mL

What Folic Acid measures

A B vitamin needed to build DNA and red cells, and critical in early pregnancy for the baby's spine and brain.

Folic Acid normal range chart

ResultFolic Acid (ng/mL)

Below rangeBelow 3.1

In range3.1 – 20.5

Above range20.5 and above

These bands are for female, 31–45 years. Enter your age and gender above to see the bands for you. The table below shows the range for every age and gender.

Folic Acid normal range by age and gender

AgeMaleFemale

0–1 years5 – 21 ng/mL5 – 21 ng/mL

2–6 years3.1 – 20.5 ng/mL3.1 – 20.5 ng/mL

7–11 years3.1 – 20.5 ng/mL3.1 – 20.5 ng/mL

12–17 years3.1 – 20.5 ng/mL3.1 – 20.5 ng/mL

18–30 years3.1 – 20.5 ng/mL3.1 – 20.5 ng/mL

31–45 years3.1 – 20.5 ng/mL3.1 – 20.5 ng/mL

46–60 years3.1 – 20.5 ng/mL3.1 – 20.5 ng/mL

60 years and above3.1 – 20.5 ng/mL3.1 – 20.5 ng/mL

What a high Folic Acid means, and common causes

Folate is above range, which is almost always from supplements and is not usually harmful.

Common causes: Folic acid supplements and fortified foods. A high folate can mask the blood changes of B12 deficiency while nerve damage continues.

What a low Folic Acid means, and common causes

Folate is below range, which causes large-cell anaemia and, in pregnancy, raises the risk of neural tube defects.

Common causes: Poor dietary intake, alcohol use, pregnancy, malabsorption including coeliac disease, and medicines such as methotrexate and some anti-epileptics.

Frequently asked questions

Usually above 3 to 5.9 ng/mL, with labs differing.

Treating folate deficiency without correcting B12 can improve the blood count while nerve damage from B12 deficiency quietly progresses.

Garbh ke shuruaati hafton mein bachche ke dimaag aur reedh ki haddi ke vikas ke liye. Isliye garbh dharan se pehle hi shuru karne ki salah hoti hai.

Please note. This page explains what a number means against reference ranges for your age and gender. It does not diagnose anything, cannot see the rest of your report, and is no substitute for a doctor. If your lab’s printed range differs, your lab’s range applies.