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Sodium in Salt Calculator helps you find sodium from salt in mg or g. Use the simple NaCl formula to convert salt into sodium fast and accurately.
A Sodium in Salt Calculator helps you find sodium from salt. It uses the amount of sodium chloride, or NaCl, in the salt.
This tool can save time and reduce math errors. You can enter salt in mg, g, kg, oz, or lb. The calculator then finds the matching sodium amount.
Pure sodium chloride contains about 39.34% sodium by mass. This value comes from the mass ratio of sodium to NaCl. NIST lists sodium at 22.98976928 g/mol. It lists sodium chloride at 58.443 g/mol.
This makes salt and sodium conversion simple.
The main formula is:
Sodium = Salt × 0.39337
For exact calculation, use:
Sodium = Salt × (22.98976928 ÷ 58.443)
The sodium fraction is:
22.98976928 ÷ 58.443 = 0.39337
So, pure NaCl is about:
39.34% sodium
This means 1 gram of pure salt contains about 0.3934 grams of sodium. A published National Academies source also uses 39.3% as the salt-to-sodium conversion factor.
You can also work backward.
Salt = Sodium ÷ 0.39337
Or:
Salt = Sodium × (58.443 ÷ 22.98976928)
This gives the equivalent amount of pure sodium chloride.
| Salt Amount | Approx. Sodium |
|---|---|
| 100 mg | 39.34 mg |
| 500 mg | 196.69 mg |
| 1 g | 393.37 mg |
| 5 g | 1,966.85 mg |
| 10 g | 3,933.70 mg |
These values assume the salt is pure sodium chloride.
Using the online calculator is quick and easy.
The tool converts the input to grams first. It then applies the sodium-to-NaCl ratio.
The calculator shows the calculated sodium or equivalent salt amount.
Suppose you have 5 grams of pure salt.
First, use the formula:
Sodium = Salt × 0.39337
Now insert the salt amount:
Sodium = 5 × 0.39337
Sodium = 1.96685 g
Convert grams to milligrams:
1.96685 × 1,000 = 1,966.85 mg
So:
5 g of pure NaCl contains about 1,966.85 mg of sodium.
You can also reverse this calculation.
Suppose you have 1,000 mg of sodium.
Use:
Salt = Sodium ÷ 0.39337
Salt = 1,000 ÷ 0.39337
Salt ≈ 2,542.8 mg
So:
1,000 mg of sodium is equal to about 2.54 g of pure salt.
The Sodium in Salt Calculator makes salt and sodium conversion easy. It uses the chemical composition of sodium chloride to find the sodium amount.
The key formula is:
Sodium = Salt × 0.39337
For reverse conversion:
Salt = Sodium ÷ 0.39337
The result is accurate for pure sodium chloride (NaCl). Commercial salt products may contain other ingredients. So, for packaged foods, use the sodium value on the nutrition label when available.
Multiply the salt amount by 0.39337.
Sodium = Salt × 0.39337
For example, 5 g of salt gives about 1.967 g of sodium.
One gram of pure NaCl contains about 393.37 mg of sodium.
Pure sodium chloride is about 39.34% sodium by mass.
About 2.54 g of pure sodium chloride contains 1,000 mg of sodium.
Yes. Multiply the salt amount in mg by 0.39337.
For example:
1,000 mg × 0.39337 = 393.37 mg sodium
Yes, when the input represents pure sodium chloride. The calculation uses the molecular mass of NaCl and the atomic mass of sodium. NIST gives values of 58.443 g/mol for sodium chloride and 22.98976928 g/mol for sodium.