Mineral Daily Value Calculator Formula

Understand the math behind the mineral daily value calculator. Each variable explained with a worked example.

Use the Mineral Daily Value Calculator

Formulas Used

% Daily Value

pct_dv = (amount_in_food / daily_value) * 100

Remaining to Meet DV

remaining = daily_value - amount_in_food

Variables

VariableDescriptionDefault
amount_in_foodMineral Amount in Serving300
daily_valueDaily Value (DV)1000

How It Works

How to Calculate Mineral Daily Value

Formula

% DV = (Amount in Serving / Daily Value) x 100

Key Daily Values (Adults)

  • Calcium: 1000 mg
  • Iron: 18 mg
  • Magnesium: 420 mg
  • Potassium: 4700 mg
  • Zinc: 11 mg

    • Worked Example

    A cup of milk provides 300 mg of calcium.

    amount_in_food = 300daily_value = 1000
    1. 01% DV: (300 / 1000) x 100 = 30%.
    2. 02Remaining: 1000 - 300 = 700 mg.
    3. 03One cup of milk provides 30% of daily calcium needs.

    Frequently Asked Questions

    What minerals are most commonly deficient?

    Iron, calcium, magnesium, and potassium are the most commonly under-consumed minerals in Western diets.

    Does cooking affect mineral content?

    Minerals are heat-stable and are not destroyed by cooking. However, they can leach into cooking water when boiling.

    Can I get too many minerals?

    Yes, excessive intake of certain minerals (like iron, zinc, selenium) from supplements can be harmful. Food-based intake rarely causes toxicity.

    Ready to run the numbers?

    Open Mineral Daily Value Calculator