Convert between salt and sodium and see the share of a 2,300 mg daily reference value. Results are approximate and not nutrition or medical advice.
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How to Use the Sodium Calculator
Choose the direction, enter an amount and press Convert. You get the sodium in milligrams, the salt in grams and the share of a 2,300 mg daily reference value.
Salt to sodium rule of thumb
1 g of salt is about 400 mg of sodium (salt is roughly 40% sodium by weight).
Sodium (mg) ÷ 400 = salt (g); salt (g) × 400 = sodium (mg).
2,300 mg is a common daily reference value used on food labels.
Most sodium comes from salt and salty seasonings.
Sodium in common seasonings
Seasoning
Approx. sodium
1 g salt
400 mg
1 tbsp soy sauce (18 g)
990 mg
1 tbsp ketchup (17 g)
190 mg
Features
Two-way conversion between salt and sodium
Shows the share of a 2,300 mg daily reference value
A quick-reference table of sodium in common seasonings
Results are approximate and not nutrition or medical advice; consult a professional for specific dietary needs.
All processing runs locally in your browser. Your data is not uploaded to any server.
The 2,300 mg figure is a general labelling reference, not a personal target. Follow your health professional for individual advice.