Sodium Per Serving Calculator Formula

Understand the math behind the sodium per serving calculator. Each variable explained with a worked example.

Use the Sodium Per Serving Calculator

Formulas Used

Sodium Per Serving

sodium_per = total_sodium_mg / servings

Salt Equivalent Per Serving

salt_equiv_g = (total_sodium_mg / servings) / 400

% of 2300 mg Daily Limit

pct_daily = (total_sodium_mg / servings) / 2300 * 100

Variables

VariableDescriptionDefault
total_sodium_mgTotal Recipe Sodium(mg)4800
servingsNumber of Servings6

How It Works

How to Calculate Sodium Per Serving

Formula

Sodium Per Serving = Total Sodium / Number of Servings

Sodium to Salt Conversion

Salt (g) = Sodium (mg) / 400

1 teaspoon of salt contains about 2300 mg of sodium.

Daily Limits

  • AHA recommendation: less than 1500 mg
  • USDA guideline: less than 2300 mg

    • Worked Example

    A soup recipe has 4800 mg total sodium and serves 6.

    total_sodium_mg = 4800servings = 6
    1. 01Sodium per serving: 4800 / 6 = 800 mg.
    2. 02Salt equivalent: 800 / 400 = 2 g salt.
    3. 03% of daily limit: (800/2300) x 100 = 34.8%.

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