Understanding your sodium total
The table below shows how this calculator classifies a day's total sodium intake against the WHO and AHA benchmarks.
| Daily sodium | Assessment |
|---|---|
| Up to 1,500 mg | At or below the AHA's 1,500 mg/day ideal limit for most adults |
| 1,501–2,000 mg | Above the AHA ideal but at or below the WHO's 2,000 mg/day limit |
| Above 2,000 mg | Exceeds the WHO's recommended daily sodium limit |
- The 2.5 sodium-to-salt conversion factor reflects the ratio between the molecular weight of sodium chloride and the atomic weight of sodium alone, and is the same factor used in WHO and food-labelling guidance.
- The American Heart Association separately lists a general upper limit of 2,300 mg/day alongside its more conservative 1,500 mg/day ideal target; this calculator's higher threshold follows the WHO's 2,000 mg/day figure specifically.
- WHO's salt-reduction guidance notes that average sodium intake in many populations worldwide is considerably higher than these recommended limits.
- Individual sodium needs can differ — people with certain medical conditions, including some forms of high blood pressure or kidney disease, may be advised different targets by a healthcare professional.
How much sodium should you eat per day?
Sodium is an essential electrolyte the body needs for fluid balance and nerve and muscle function, but habitually consuming more than the body needs is associated with raised blood pressure and elevated cardiovascular risk. The World Health Organization's guideline on sodium intake recommends adults consume less than 2,000 mg of sodium per day, equivalent to less than about 5 g of salt per day, as a population-level target for reducing cardiovascular disease.
The American Heart Association sets a more conservative "ideal limit" of no more than 1,500 mg of sodium per day for most adults, particularly those managing blood pressure, while also citing a general upper limit of 2,300 mg/day in its broader guidance materials. This calculator's banding follows the WHO's 2,000 mg/day figure as its upper threshold and the AHA's 1,500 mg/day figure as the lower, more conservative benchmark.
Sodium content is converted to its salt (sodium chloride) equivalent by multiplying by approximately 2.5, reflecting the ratio between the molecular weight of salt (NaCl) and the atomic weight of sodium alone — the same conversion factor used by public-health bodies and food-labelling guidance when translating sodium figures into everyday salt amounts.
How to use this sodium calculator
- Check the sodium content (in milligrams) listed on the nutrition label of each food or drink you've consumed, or plan to consume, in a day.
- Enter each item's sodium value, separated by commas, in the entry field.
- Read your total sodium intake, its equivalent in grams of salt, and the percentage of the WHO's 2,000 mg/day limit it represents.
- Remember that most dietary sodium in many countries comes from processed and restaurant food rather than salt added at the table, so check labels rather than relying on taste.
The formula behind your sodium total
The calculator sums every entered value to get total daily sodium, then applies a standard conversion factor to express that total as grams of salt, and compares it against the WHO's 2,000 mg/day reference limit as a percentage.
Common mistakes
- Focusing only on table salt while overlooking processed and restaurant foods, which are the largest source of dietary sodium for most people in many countries.
- Confusing sodium (tracked in milligrams by this calculator) with salt/sodium chloride (typically discussed in grams) — converting between them requires the roughly 2.5× factor, not a 1:1 assumption.
- Mixing up the AHA's separate 1,500 mg ideal limit and 2,300 mg general upper limit with the WHO's 2,000 mg guideline — this calculator's "high" threshold specifically follows the WHO figure.
- Assuming sodium content can be judged by taste — many high-sodium foods, such as bread, breakfast cereals and sauces, do not taste distinctly salty, so labels need to be checked rather than estimated.
Câu hỏi thường gặp
How much sodium should I eat per day?
The World Health Organization recommends adults consume less than 2,000 mg of sodium per day, equivalent to less than about 5 g of salt. The American Heart Association sets a more conservative ideal limit of no more than 1,500 mg/day for most adults, alongside a general upper limit of 2,300 mg/day cited in its broader materials.
How do you convert sodium to salt?
Multiply the sodium value in milligrams by approximately 2.5 and divide by 1,000 to get grams of salt. This factor reflects the ratio between the molecular weight of sodium chloride (salt) and the atomic weight of sodium alone, and is the standard conversion used in public-health and food-labelling guidance.
What foods are highest in sodium?
In many countries, the largest share of dietary sodium comes from processed, packaged and restaurant foods — such as bread, cured meats, cheese, canned soups and sauces — rather than salt added during home cooking or at the table. Checking nutrition labels is a more reliable way to track sodium than judging by taste.
Is 2,000 mg the same as the AHA's sodium recommendation?
Not exactly. The WHO's guideline sets 2,000 mg/day as its recommended limit. The American Heart Association's materials cite a more conservative 1,500 mg/day 'ideal limit' for most adults, alongside a separate 2,300 mg/day general upper limit. This calculator's higher ("high") threshold follows the WHO's 2,000 mg figure specifically.
Why does excess sodium matter for health?
Habitually consuming more sodium than the body needs is associated with raised blood pressure in many people, a major risk factor for cardiovascular disease and stroke, which is the basis for the WHO's and AHA's population-level sodium-reduction guidance. Individual sensitivity to sodium's effect on blood pressure varies, and specific concerns are best discussed with a healthcare professional.
Tài liệu tham khảo
- World Health Organization. Guideline: Sodium intake for adults and children. WHO, Geneva, 2012.
- World Health Organization. Salt reduction fact sheet. who.int.
- American Heart Association. How much sodium should I eat per day? heart.org.
- UK Food Standards Agency / Public Health England. Guidance on the sodium-to-salt conversion factor used in nutrition labelling.