Blood Pressure Category Checker
See which ACC/AHA 2017 category a blood pressure reading falls in, with the ESC 2024 view alongside.
Salt and Sodium Calculator
Convert sodium on food labels to salt and compare with the WHO limit.
Your result will appear here
Enter your measurements, then press Calculate.
Methodology
Salt (NaCl) = sodium × 2.54; WHO limit 2 g sodium / 5 g salt per day
salt (g) = sodium (mg) × 2.54 ÷ 1000
Sodium makes up about 39% of salt by weight (58.44 / 22.99 = 2.54). WHO recommends adults eat less than 2 g of sodium (5 g of salt) per day.
- Who it is for
- Adults; children's limits are lower and scaled to energy needs.
- Version
- 1.0.0
Worked example: how to calculate salt ↔ sodium
Inputs
- Sodium
- 2,000 mg sodium
Result
- Equivalent salt
- 5.08 g
- Share of the WHO daily limit (2000 mg sodium)
- 100 %
Calculation:
2000 × 2.54 = 5080 mg
An illustration with sample values, worked out with the same method the tool above uses.
Limitations
- Some people with kidney, heart or blood-pressure conditions are given different sodium targets.
References
- World Health Organization. Guideline: sodium intake for adults and children. Geneva: WHO; 2012. https://www.who.int/publications/i/item/9789241504836