Potassium Daily Value: 4,700 mg
The FDA Daily Value for potassium is 4,700 mg for adults and children 4+.
Key facts
- Adults & children 4+
- 4,700 mg
- Ages 1–3
- 3,000 mg
- Pregnant/lactating
- 5,100 mg
- Infants
- 700 mg
- On labels until 2020/2021
- 3,500 mg · increased 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 10 mg
- 20% DV (high)
- 940 mg
Common amounts of potassium
Per serving, adults and children 4+.
- 200 mg is 4%
- 500 mg is 10%
- 2,000 mg is 45%
- 5,000 mg is 110%
Potassium Daily Value: 3,000 mg
The FDA Daily Value for potassium is 3,000 mg for children 1–3 years.
- Adults & children 4+
- 4,700 mg
- Ages 1–3
- 3,000 mg
- Pregnant/lactating
- 5,100 mg
- Infants
- 700 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)
- 600 mg
Per serving, children 1–3 years.
- 100 mg is 4%
- 200 mg is 6%
- 500 mg is 15%
- 1,000 mg is 35%
- 2,000 mg is 70%
Potassium Daily Value: 5,100 mg
The FDA Daily Value for potassium is 5,100 mg for pregnant and lactating women.
- Adults & children 4+
- 4,700 mg
- Ages 1–3
- 3,000 mg
- Pregnant/lactating
- 5,100 mg
- Infants
- 700 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)
- 1,020 mg
Per serving, pregnant and lactating women.
- 200 mg is 4%
- 500 mg is 10%
- 2,000 mg is 40%
- 5,000 mg is 100%
Potassium Daily Value: 700 mg
The FDA Daily Value for potassium is 700 mg for infants through 12 months.
- Adults & children 4+
- 4,700 mg
- Ages 1–3
- 3,000 mg
- Pregnant/lactating
- 5,100 mg
- Infants
- 700 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)
- 140 mg
Per serving, infants through 12 months.
- 50 mg is 8%
- 100 mg is 15%
- 200 mg is 30%
- 500 mg is 70%
- 1,000 mg is 140%
About potassium
When a serving has less than 2 percent of the RDI, the label does not have to state the amount: it may show zero, or an asterisk that points to “Contains less than 2 percent of the Daily Value of this (these) nutrient (nutrients)”. Or, except on the simplified format, it may leave potassium off and print “Not a significant source of potassium” at the bottom of the nutrient table.
Questions about potassium
What is the FDA Daily Value for potassium?
The FDA Daily Value for potassium is 4,700 mg for adults and children 4 years and older. On a Nutrition Facts label, a serving's %DV for potassium is its amount divided by 4,700 mg, times 100.
How do I work out the %DV for potassium?
Divide the amount in one serving by 4,700 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, 940 mg ÷ 4,700 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.
Potassium rounding rules
Amount
Potassium is declared to the nearest 10mg. Measuring finer than that changes nothing on the label, except below 5mg, where it is declared to the nearest 5mg so a real amount is not printed as 0.
| Amount range | Rounding rule |
|---|---|
| 0 to <5 | nearest 5 mg |
| ≥5 | nearest 10 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 <47 mg |
| 2% DV | 47 mg≤ amount <141 mg |
| 4% DV | 141 mg≤ amount <235 mg |
| 6% DV | 235 mg≤ amount <329 mg |
| 8% DV | 329 mg≤ amount <423 mg |
| 10% DV | 423 mg≤ amount <587.5 mg |
| Nearest 5%>10 to 50% DV | |
| 15% DV | 587.5 mg≤ amount <822.5 mg |
| 20% DV | 822.5 mg≤ amount <1,057.5 mg |
| 25% DV | 1,057.5 mg≤ amount <1,292.5 mg |
| 30% DV | 1,292.5 mg≤ amount <1,527.5 mg |
| 35% DV | 1,527.5 mg≤ amount <1,762.5 mg |
| 40% DV | 1,762.5 mg≤ amount <1,997.5 mg |
| 45% DV | 1,997.5 mg≤ amount <2,232.5 mg |
| 50% DV | 2,232.5 mg≤ amount <2,585 mg |
| Nearest 10%>50% DV | |
| 60% DV | 2,585 mg≤ amount <3,055 mg |
| 70% DV | 3,055 mg≤ amount <3,525 mg |
| 80% DV | 3,525 mg≤ amount <3,995 mg |
| 90% DV | 3,995 mg≤ amount <4,465 mg |
| 100% DV | 4,465 mg≤ amount <4,935 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 potassium Daily Value change for children or pregnancy?
Yes. It is 3,000 mg for children 1 to 3 years, is 5,100 mg during pregnancy and lactation and is 700 mg for infants through 12 months.
How do I find out how much potassium is in a food?
A Daily Value is a reference target, not a measurement of any particular food. To find the potassium 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.
- Potassium Daily Value: 21 CFR 101.9(c)(8)(iv).
- Potassium 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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