Riboflavin Daily Value: 1.3 mg
The FDA Daily Value for riboflavin is 1.3 mg for adults and children 4+.
Key facts
- Adults & children 4+
- 1.3 mg
- Ages 1–3
- 0.5 mg
- Pregnant/lactating
- 1.6 mg
- Infants
- 0.4 mg
- On labels until 2020/2021
- 1.7 mg · decreased Source (opens in a new tab)
- Label rounding
- Regulation: in mg, to the precision of the Daily Value; more decimals allowed for small amounts; under 2% DV may show 0% FDA guidance (nonbinding): nearest 0.01 mg
- 20% DV (high)
- 0.26 mg
Common amounts of riboflavin
Per serving, adults and children 4+.
- 0.05 mg is 4%
- 0.1 mg is 8%
- 0.2 mg is 15%
- 0.5 mg is 40%
- 1 mg is 80%
Riboflavin Daily Value: 0.5 mg
The FDA Daily Value for riboflavin is 0.5 mg for children 1–3 years.
- Adults & children 4+
- 1.3 mg
- Ages 1–3
- 0.5 mg
- Pregnant/lactating
- 1.6 mg
- Infants
- 0.4 mg
- Label rounding
- Regulation: in mg, to the precision of the Daily Value; more decimals allowed for small amounts; under 2% DV may show 0%
- 20% DV (high)
- 0.1 mg
Per serving, children 1–3 years.
- 0.02 mg is 4%
- 0.05 mg is 10%
- 0.2 mg is 40%
- 0.5 mg is 100%
Riboflavin Daily Value: 1.6 mg
The FDA Daily Value for riboflavin is 1.6 mg for pregnant and lactating women.
- Adults & children 4+
- 1.3 mg
- Ages 1–3
- 0.5 mg
- Pregnant/lactating
- 1.6 mg
- Infants
- 0.4 mg
- Label rounding
- Regulation: in mg, to the precision of the Daily Value; more decimals allowed for small amounts; under 2% DV may show 0%
- 20% DV (high)
- 0.32 mg
Per serving, pregnant and lactating women.
- 0.05 mg is 4%
- 0.1 mg is 6%
- 0.2 mg is 15%
- 0.5 mg is 30%
- 1 mg is 60%
- 2 mg is 130%
Riboflavin Daily Value: 0.4 mg
The FDA Daily Value for riboflavin is 0.4 mg for infants through 12 months.
- Adults & children 4+
- 1.3 mg
- Ages 1–3
- 0.5 mg
- Pregnant/lactating
- 1.6 mg
- Infants
- 0.4 mg
- Label rounding
- Regulation: in mg, to the precision of the Daily Value; more decimals allowed for small amounts; under 2% DV may show 0%
- 20% DV (high)
- 0.08 mg
Per serving, infants through 12 months.
- 0.05 mg is 15%
- 0.1 mg is 25%
- 0.2 mg is 50%
- 0.5 mg is 130%
Questions about riboflavin
What is the FDA Daily Value for riboflavin?
The FDA Daily Value for riboflavin is 1.3 mg for adults and children 4 years and older. On a Nutrition Facts label, a serving's %DV for riboflavin is its amount divided by 1.3 mg, times 100.
How do I work out the %DV for riboflavin?
Divide the amount in one serving by 1.3 mg and multiply by 100. Then round to the nearest 2% up to 10%, to the nearest 5% above 10% and up to 50%, and to the nearest 10% above 50%. For example, 0.26 mg ÷ 1.3 mg × 100 = 20%.
How are vitamin and mineral %DV values rounded?
The percentages for vitamins and minerals shall be expressed to the nearest 2-percent increment up to and including the 10-percent level, the nearest 5-percent increment above 10 percent and up to and including the 50-percent level, and the nearest 10-percent increment above the 50-percent level.
Riboflavin rounding rules
Amount
Riboflavin is declared to the nearest 0.01mg. Measuring finer than that changes nothing on the label.
| Amount range | Rounding rule |
|---|---|
| ≥0 | nearest 0.01 mg |
These mg increments come from FDA guidance, banded by this group's Daily Value.
% Daily Value
| %DV range | Rounding rule |
|---|---|
| 0 to 10% DV | Nearest 2% |
| >10 to 50% DV | Nearest 5% |
| >50% DV | Nearest 10% |
Every %DV a label can show
What a serving has to contain for a label to print each figure. The %DV is worked out from the actual amount, before that amount is rounded.
| If the label shows | The serving must contain |
|---|---|
| Nearest 2%0 to 10% DV | |
| 0% DV | 0 mg≤ amount <0.013 mg |
| 2% DV | 0.013 mg≤ amount <0.039 mg |
| 4% DV | 0.039 mg≤ amount <0.065 mg |
| 6% DV | 0.065 mg≤ amount <0.091 mg |
| 8% DV | 0.091 mg≤ amount <0.117 mg |
| 10% DV | 0.117 mg≤ amount <0.1625 mg |
| Nearest 5%>10 to 50% DV | |
| 15% DV | 0.1625 mg≤ amount <0.2275 mg |
| 20% DV | 0.2275 mg≤ amount <0.2925 mg |
| 25% DV | 0.2925 mg≤ amount <0.3575 mg |
| 30% DV | 0.3575 mg≤ amount <0.4225 mg |
| 35% DV | 0.4225 mg≤ amount <0.4875 mg |
| 40% DV | 0.4875 mg≤ amount <0.5525 mg |
| 45% DV | 0.5525 mg≤ amount <0.6175 mg |
| 50% DV | 0.6175 mg≤ amount <0.715 mg |
| Nearest 10%>50% DV | |
| 60% DV | 0.715 mg≤ amount <0.845 mg |
| 70% DV | 0.845 mg≤ amount <0.975 mg |
| 80% DV | 0.975 mg≤ amount <1.105 mg |
| 90% DV | 1.105 mg≤ amount <1.235 mg |
| 100% DV | 1.235 mg≤ amount <1.365 mg |
The rules are FDA's; the inversion is ours. Ranges are inclusive at the low end and exclusive at the high end, because an exact half rounds up.
Does the riboflavin Daily Value change for children or pregnancy?
Yes. It is 0.5 mg for children 1 to 3 years, is 1.6 mg during pregnancy and lactation and is 0.4 mg for infants through 12 months.
How do I find out how much riboflavin is in a food?
A Daily Value is a reference target, not a measurement of any particular food. To find the riboflavin content of a specific ingredient or product, look it up in USDA FoodData Central, then use that amount here to see what a label would declare and what %DV it carries.
Where do these numbers come from?
- Daily Values and label rounding: FDA, 21 CFR 101.9, as of 2026-02-12.
- Riboflavin Daily Value: 21 CFR 101.9(c)(8)(iv).
- Riboflavin label rounding: 21 CFR 101.9(c)(8)(iii).
- %DV rounding: 21 CFR 101.9(c)(8)(iii).
- Old Daily Values: 21 CFR 101.9, April 1, 2016 edition.
- 5% low and 20% high: FDA's consumer page on the lows and highs of %DV.
- Dataset: bm-regulatory US Nutrition Label Rules v17.0.0.
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