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Solution Concentration Calculator (g/L, ppm, %)
Converts solution mass and volume into g/L, mg/mL, ppm, ppb, and percent weight-by-volume (% w/v).
Mass Concentration Calculator (C = m / V)
Solute mass per volume of solution with g/L, ppm, ppb, and % w/v
Volumetric Solution Model
Mass Concentration
35 g/L
Parts Per Million (ppm)
35,000 ppm
Mass / Volume Percent
3.5% (w/v)
Parts Per Billion (ppb)
35,000,000 ppb
1. Solute Mass: m = 35 g = 35.0000 g 2. Total Volume: V = 1 L = 1.0000 L 3. Mass Concentration: C = m / V = (35.0000 g) / (1.0000 L) = 35.0000 g/L 4. Unit Equivalents: • Parts Per Million: 35,000 ppm (mg/L) • Parts Per Billion: 35,000,000 ppb • Mass/Volume Percent: 3.500% (w/v)
What is Mass Concentration?
Mass concentration defines mass of a constituent divided by total solution volume.
Formula & Step-by-Step Calculation
C = m / V, ppm = (m_solute / V) × 1000 mg/L
Mass of solute divided by volume of solution.
Worked Step-by-Step Examples
Example 1
50 grams of salt in 2 Liters of water
Solution: 25.0 g/L (25,000 ppm or 2.5% w/v)
• 50 g / 2 L = 25 g/L
Common Real-World & Academic Use Cases
- ✓ Drinking water salinity & heavy metal testing
- ✓ Intravenous medical saline IV bag prep
- ✓ Nutrient hydroponics solutions
How to Use the Solution Concentration Calculator (g/L, ppm, %)
1
Enter Solute Mass
Input grams.
2
Enter Solution Volume
Input Liters.
3
Review Outputs
Inspect g/L, ppm, and % w/v.
Frequently Asked Questions
Q: What does 1 ppm represent in water?
In aqueous solutions, 1 ppm is approximately equal to 1 milligram per liter (mg/L).