Food Salt PPM Calculator
"2% salt" on a formulation sheet is 20,000 PPM salt — and about 7,860 PPM sodium (salt is 39.3% sodium). This converts both so labels and low-sodium targets line up.
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Food Salt PPM Calculator
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"2% salt" on a formulation sheet is 20,000 PPM salt — and about 7,860 PPM sodium (salt is 39.3% sodium). This converts both so labels and low-sodium targets line up.
How to use this calculator
- Enter salt %.
- Get salt PPM and sodium PPM.
The formula
Salt PPM = % × 10,000; sodium PPM = salt PPM × 0.393.
What the units mean
Percent — parts per hundred. The everyday unit for concentrations large enough to read as a percentage.
PPM (parts per million) — one part of solute per million parts of the total mixture. The workhorse unit for trace concentrations in water, air, and food.
Worked example
Bread at 1.5% salt → 15,000 PPM salt, ~5,900 PPM sodium.
Quick reference
| Salt % | Salt PPM | Sodium PPM |
|---|---|---|
| 1% | 10,000 | 3,930 |
| 2% | 20,000 | 7,860 |
Salt × 10,000; sodium × 0.393.
Where you will actually use this
Sodium targets are the real health metric; salt % is what you weigh.
- Low-sodium formulation
- Label nutrition panels
- Brine calculations
Mistakes that give wrong answers
- Reporting salt PPM as sodium PPM (39% error!)
Key takeaways
- Formula: PPM sodium ≈ salt % × 10,000 × 0.393
- Remember: Salt × 10,000; sodium × 0.393.
- Watch out for: Reporting salt PPM as sodium PPM (39% error!)
- Next step: run your own numbers in the calculator above, then verify with a measurement — calculated values are only as good as the inputs.
Frequently asked questions
How much sodium in salt?
About 39.3% by weight.