Salt Concentration Calculator
Calculate the exact salt concentration of your solution. Enter salt weight and water volume to get results in %, g/L, ppm, and salinity classification.
How the salt concentration calculator works
This calculator determines the salt concentration of a solution by dividing the weight of salt (in grams) by the total weight of the solution (salt + water) and multiplying by 100 to get a percentage. It also computes grams per litre (g/L), parts per million (ppm), and provides a salinity classification based on the result.
Enter the amount of salt and the volume of water below, choose your preferred output units, and the calculator instantly shows your solution’s concentration across multiple metrics.
Step 1: Salt & Water
Understanding Salt Concentration
Salt concentration is the amount of salt dissolved in a solution. Common references: seawater ≈ 3.5% (35 g/L), brine for pickling ≈ 5–10%, and curing brine ≈ 20–25%.
Step 2: Output Settings
Common Salt Concentration References
Fresh water: < 0.05% · Brackish: 0.05–3% · Seawater: 3.5% · Pickle brine: 5–10% · Curing brine: 20–25% · Saturated brine: ~26.4%.
Salt Concentration Results
Salt Concentration
Reference Comparison
| Reference | Concentration | g/L | Description |
|---|
Concentration Breakdown
Salt Concentration Formula
Concentration (%) = (salt weight / total solution weight) × 100
Total solution weight = salt weight + water weight (1 mL water ≈ 1 g). For g/L: salt weight (g) / water volume (L). For ppm: g/L × 1000.
Frequently Asked Questions
What is salt concentration?
Salt concentration is the amount of salt dissolved in a given volume of water. It is typically expressed as a percentage (%), grams per litre (g/L), or parts per million (ppm).
How do you calculate salt concentration?
Salt concentration is calculated by dividing the weight of salt (in grams) by the total weight of the solution (salt + water) and multiplying by 100 for percentage. For g/L, divide salt weight by water volume in litres.
What is the salinity of seawater?
Seawater typically has a salinity of about 3.5%, meaning 35 grams of salt per litre of water (35 g/L), or 35,000 ppm.
What is a typical brine concentration?
Brine solutions for food preservation typically range from 5% to 25% salt concentration. A 5% brine is common for pickling, while 20–25% is used for curing meats.
What is ppm in salt concentration?
PPM stands for parts per million. In salt concentration, 1 ppm means 1 milligram of salt per litre of water. 1% = 10,000 ppm.
Need Professional Lab Analysis?
Connect with our certified chemists and food scientists for precise salt concentration measurements, quality control, and formulation support.
Get Professional Lab Support