🥕 Vitamin A Intake Calculator

Find the recommended daily Vitamin A intake for your age and life stage.

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Fill in the details and click Calculate to see your results.

Formula at a glance

Vitamin A RDA formula: RDA (µg RAE per day) = value for the category you choose
How the vitamin a rda works: RDA (µg RAE per day) = value for the category you choose

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📘 About the Vitamin A Intake Calculator

Vitamin A supports vision, immunity and healthy skin. The recommended amount depends on age and life stage, and needs are higher during pregnancy and breastfeeding.

Choose a category to see the recommended dietary allowance (RDA) in micrograms of retinol activity equivalents (µg RAE) a day.

🧮 Formula

Recommended intake
RDA (µg RAE per day) = value for the category you choose

Where

  • Adult male 900, adult female 700, pregnant 770, lactating 1300
  • Children: 300 (1–3 years), 400 (4–8 years), 600 (9–13 years)
Values follow US National Institutes of Health recommendations. Indian ICMR recommendations differ slightly.

✏️ Worked examples

Adult woman

You enter
CategoryAdult Female
You get
Recommended daily vitamin A (Adult woman)700 mcg RAE
In International Units (as retinol)2,333 IU
Safe upper limit (preformed vitamin A)3,000 mcg (10,000 IU) a day
Indian RDA (ICMR-NIN 2020)840 mcg a day

700 mcg RAE (2,333 IU).

Pregnant woman

You enter
CategoryPregnant
You get
Recommended daily vitamin A (Pregnant woman)770 mcg RAE
In International Units (as retinol)2,567 IU
Safe upper limit (preformed vitamin A)3,000 mcg (10,000 IU) a day
Indian RDA (ICMR-NIN 2020)900 mcg a day

770 mcg RAE.

Child 4–8 years

You enter
CategoryChild (4-8 years)
You get
Recommended daily vitamin A (Child 4–8 years)400 mcg RAE
In International Units (as retinol)1,333 IU
Safe upper limit (preformed vitamin A)900 mcg (3,000 IU) a day

400 mcg RAE; upper limit 900 mcg (3,000 IU) a day.

🧭 How to use this calculator

What you enter

  • Category

What you get

  • Recommended Daily Vitamin A
  • In International Units (IU)

❓ Frequently asked questions

Which foods are rich in vitamin A?

Carrots, sweet potato, spinach, mango, papaya, eggs, milk and liver.

Can I take too much vitamin A?

Yes. Excess from supplements can be harmful, especially in pregnancy. Do not exceed recommended doses without medical advice.

Is beta-carotene the same as vitamin A?

Beta-carotene from plants is converted to vitamin A in the body, but at a lower efficiency.

How much vitamin A do I need per day?

900 mcg for adult men and 700 mcg for adult women (US RDA). ICMR suggests 1,000 mcg for Indian men and 840 mcg for women.

How do I convert vitamin A mcg to IU?

For retinol, 1 mcg = 3.33 IU. 900 mcg ≈ 3,000 IU.