Sodium Intake Calculator

What Is a Sodium Intake Calculator?

A sodium intake calculator adds up the sodium from everything you eat in a day and compares it to the limits set by the American Heart Association and the Dietary Guidelines for Americans. You enter how many servings of common foods you consumed. The calculator shows your total sodium in milligrams, how that compares to the 2,300 mg daily maximum and the 1,500 mg optimal goal, and the equivalent in teaspoons of table salt.

Sodium is an essential mineral. Your body needs less than 500 mg per day to function, which is the amount in less than a quarter teaspoon of salt. But the average American consumes about 3,100 mg per day, well above every major health recommendation. The 2026 AHA Dietary Guidance to Improve Cardiovascular Health, published in Circulation, reinforced sodium reduction as one of nine features of a heart-healthy dietary pattern and emphasized choosing foods low in sodium and preparing foods with minimal or no salt.

Sodium Limits by Group

Different groups have different sodium targets. The calculator adjusts the recommended limit based on who is consuming it:

The 2,300 mg limit is the equivalent of about 1 teaspoon of table salt. The AHA optimal goal of 1,500 mg is roughly two-thirds of a teaspoon. The 1,500 mg target may not apply to people who lose large amounts of sodium in sweat, such as competitive athletes and workers exposed to major heat stress. If you have a medical condition or special dietary needs, check with your healthcare team.

Where Sodium Hides

Most people are surprised to learn that the salt shaker is not the main source of dietary sodium. The CDC estimates that more than 70% of sodium in the American diet comes from processed and restaurant foods. The top contributors are bread, pizza, sandwiches, cold cuts and cured meats, soups, burritos and tacos, savory snacks, chicken, cheese, and eggs. A single restaurant meal can easily contain 1,500 to 3,000 mg of sodium.

• Bread (1 slice): About 230 mg. Two sandwiches give you nearly 1,000 mg from bread alone.
• Canned soup (1 cup): About 800 mg. Some canned soups exceed 1,000 mg per cup.
• Soy sauce (1 tbsp): About 900 mg. A single tablespoon of soy sauce contains nearly 40% of the daily limit.
• Pizza (1 slice): About 650 mg. Two slices of pizza can deliver 1,300 mg before you add anything else.
• Cold cuts (1 oz): About 350 mg. A typical deli sandwich with 4 oz of meat gets 1,400 mg from the meat alone.

How to Use the Calculator

1. Select your profile: general adult, adult with hypertension, or heavy sweater/athlete.
2. Enter the number of servings of each food you consumed today. Most items default to zero.
3. Your total sodium, percentage of limit, and status appear instantly on the right.
4. Check the progress bar to see how close you are to your recommended limit.
5. The salt equivalent shows your intake as teaspoons of table salt for easy visualization.

Example Calculations

Example 1: Typical Office Lunch

A 45-year-old office worker has a turkey sandwich for lunch (2 slices of bread, 4 oz of deli turkey), a bag of chips, and a cup of canned soup.

• Bread: 2 x 230 = 460 mg
• Cold cuts: 4 x 350 = 1,400 mg
• Snack chips: 1 x 170 = 170 mg
• Canned soup: 1 x 800 = 800 mg
• Total: 2,830 mg (123% of 2,300 mg limit)
• Status: Above recommended limit, and this is just one meal

Example 2: Low-Sodium Day

A 55-year-old woman with hypertension tracks her full day of eating. She has a bowl of cereal for breakfast, a homemade salad with dressing for lunch, and a home-cooked dinner with no processed ingredients.

• Breakfast cereal: 1 x 200 = 200 mg
• Salad dressing: 2 x 300 = 600 mg
• Cheese (in salad): 1 x 175 = 175 mg
• Total: 975 mg (65% of 1,500 mg limit)
• Status: Optimal range, well within her hypertension target

Real-World Scenarios

Managing Hypertension Through Diet

Robert, a 58-year-old with stage 1 hypertension, was told by his doctor to reduce his sodium intake. His blood pressure was 138/88. He used this calculator and found that his typical day, which included a fast food burger, a frozen dinner, and several slices of bread, added up to 3,500 mg. He started cooking at home more often, swapped canned vegetables for fresh or frozen, and chose low-sodium soups. After two months his average daily sodium dropped to 1,400 mg and his blood pressure fell to 128/82. The DASH diet (Dietary Approaches to Stop Hypertension), which is low in sodium and high in potassium-rich fruits and vegetables, has been shown in NIH-funded research to lower blood pressure within weeks. You can track your blood pressure alongside your diet using our Blood Pressure Calculator.

The Restaurant Meal Trap

Maria, a 35-year-old marketing manager, eats out for lunch most weekdays. She considers her choices relatively healthy: a chicken sandwich, a side salad, and sometimes soup. When she tracked a single restaurant lunch using this calculator, she found the meal alone contained 2,100 mg of sodium. That is 91% of the 2,300 mg daily limit in a single meal. Restaurant portions are typically larger than home servings, and restaurants use more salt for flavor. Maria started checking nutrition information online before choosing restaurants and began packing lunch twice a week. Her daily average dropped from 3,800 mg to 2,100 mg.

Athlete with High Sweat Loss

David, a 30-year-old marathon runner, trains in hot weather and loses significant sodium in sweat. He was concerned about his sodium intake after reading about the 1,500 mg guideline. But the AHA explicitly notes that the 1,500 mg goal may not apply to people who lose large amounts of sodium in sweat. David uses the athlete profile, which keeps the 2,300 mg limit. On heavy training days he may need more sodium to replace what he loses. A sports dietitian can help calculate individual sweat sodium losses. For tracking overall nutrition, David also uses our Water Intake Calculator and Calorie Calculator.

Common Mistakes to Avoid

• Blaming the salt shaker: Table salt contributes only about 5% of dietary sodium for most Americans. The real sources are processed foods, restaurant meals, and packaged snacks. Removing the salt shaker without changing what you buy will barely move the needle.
• Ignoring bread: Bread is the single largest contributor to sodium intake in the US diet. It does not taste salty, but each slice has about 230 mg. Two sandwiches give you nearly 1,000 mg from bread alone.
• Assuming canned vegetables are healthy: Canned vegetables can contain 400 mg or more per cup. Rinsing canned beans and vegetables removes some sodium, but choosing frozen or fresh is better. Look for no-salt-added varieties.
• Forgetting condiments: Soy sauce, ketchup, salad dressing, and barbecue sauce are concentrated sodium sources. One tablespoon of soy sauce has 900 mg. Always check serving sizes on condiment labels.
• Overlooking potassium: The 2026 AHA guidance emphasizes that potassium-rich foods (fruits, vegetables, beans, dairy) help blunt the effects of high sodium intake. Increasing potassium is nearly as important as reducing sodium for blood pressure control. Fewer than 2% of US adults consume enough potassium.

Authoritative Research and Resources

• American Heart Association: How Much Sodium Should I Eat Per Day? - The AHA consumer guide to sodium, including the 2,300 mg maximum and 1,500 mg optimal goal, hidden sources of sodium, and tips for reducing intake.
• 2026 Dietary Guidance to Improve Cardiovascular Health (AHA Scientific Statement) - Published in Circulation, this 2026 update to the 2021 dietary guidance statement reinforces sodium reduction and the role of potassium-rich foods in blood pressure control.
• CDC: Sodium and Health - The Centers for Disease Control and Prevention resource on sodium, including data on average intake, top food sources, and the finding that more than 70% of dietary sodium comes from processed and restaurant foods.