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Daily Sodium Intake Calculator

Track your daily sodium intake against recommended limits.

Result

Percent of Daily Limit
78%
Remaining Budget
500 mg
Daily Limit Used
2,300 mg

Uses the American Heart Association's recommended limits: 2,300mg/day for the general population, and an ideal limit of 1,500mg/day for those with hypertension or heart conditions. This is informational only, not medical advice - follow your doctor's specific guidance if you have a diagnosed condition.

About the Sodium Intake

The Daily Sodium Intake Calculator checks how much of your recommended daily sodium limit you've used up based on what you've eaten so far today. It applies a lower limit automatically if you indicate you have hypertension or a heart condition, since dietary guidance differs for that group. It's meant as a quick tracking tool for anyone monitoring sodium as part of a blood-pressure-conscious diet.

How It Works

Enter the milligrams of sodium you've consumed today and check a box if you have hypertension or a heart condition. The calculator selects your applicable daily limit, calculates what percentage of that limit your current intake represents, and shows how much sodium budget you have left before hitting the limit.

Daily limit = 1,500mg if hypertension or heart condition is checked, otherwise 2,300mg. Percent of limit = (Sodium Consumed / Limit) x100. Remaining budget = max(Limit - Consumed, 0).

Formula & Methodology

To work this out by hand, first pick your applicable limit: 1,500mg if you checked the hypertension or heart condition box, or 2,300mg if you didn't. Divide your total sodium consumed so far today by that limit and multiply by 100 to get your percentage used. Then subtract your consumed total from the limit, treating any result below zero as zero, to find how much sodium budget remains for the rest of the day.

Examples

General limit, partway through the day

Someone without a flagged heart condition has consumed 1,800mg of sodium so far today. Against the 2,300mg general limit, that's about 78% of the daily limit used, with roughly 500mg of remaining budget.

Reduced limit, already over budget

Someone with hypertension checked has consumed 2,100mg of sodium. Against the reduced 1,500mg limit, that works out to 140% of the daily limit, with the remaining budget shown as 0mg since consumption already exceeds the cap.

Advantages

  • Automatically swaps to a stricter limit when a hypertension or heart condition is flagged, instead of applying one generic number to everyone.
  • Converts an abstract milligram total into an easy-to-read percentage of your daily limit.
  • Shows remaining budget in milligrams, which is more directly actionable for planning the rest of the day's meals than a percentage alone.

Common Mistakes

  • Only counting salt added at the table while ignoring sodium already present in processed, packaged, and restaurant foods, which is the source of most dietary sodium for most people.
  • Forgetting to update the running total throughout the day, which makes the remaining-budget figure inaccurate for planning later meals.
  • Assuming the 2,300mg general limit still applies after checking the hypertension/heart condition box, when the calculator has already switched to the lower 1,500mg figure.

Edge Cases to Watch For

  • Once consumption exceeds the limit, the remaining budget figure is floored at 0mg rather than showing a negative number, even though the percent-of-limit figure keeps climbing above 100%.
  • The hypertension/heart condition input is a single yes/no checkbox, so it applies the same 1,500mg limit regardless of how the condition is managed or its severity.
  • The two limits used, 2,300mg general and 1,500mg for hypertension or heart conditions, are the American Heart Association's commonly cited reference values, not a substitute for an individualized recommendation from a healthcare provider.

Common Use Cases

  • People managing high blood pressure or a heart condition who need to stay under a stricter sodium ceiling.
  • Anyone using food labels to log sodium intake and wanting a running check against a daily target.
  • Home cooks and meal planners deciding whether a specific dish or restaurant order fits within the day's remaining sodium budget.
Written & fact-checked by the Calculateus TeamLast updated August 5, 2026How we verify our formulas

Frequently asked questions

Why is excess sodium linked to blood pressure?

Sodium causes the body to retain more water to maintain proper blood concentration, which increases blood volume and the pressure that volume exerts on artery walls - most Americans consume well above recommended limits, largely from processed and restaurant food rather than table salt added at home.

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Conclusion

This calculator turns a running sodium tally into a clear percentage and remaining budget against the appropriate daily limit. It's intended as an informational tracking aid, not a replacement for guidance from a doctor or dietitian on managing a diagnosed condition.

References