Calculate pH levels from hydrogen ion concentration and vice versa
Enter values and click "Calculate" to see results.
Select the calculation type and enter the pH value or hydrogen ion concentration. The calculator will determine the corresponding value and classify the water quality.
pH Scale:
pH measures the acidity or alkalinity of water on a scale from 0 to 14. It indicates the concentration of hydrogen ions (H⁺) and hydroxide ions (OH⁻) in the water.
Low pH (Acidic):
Solution: pH adjustment with alkaline chemicals
High pH (Alkaline):
Solution: pH reduction or water softening
pH Impact on Chlorine:
Optimal Range: 6.5-7.5 for chlorination
Causes: Dissolved CO₂, organic acids, mining drainage
Effects: Blue/green staining, metallic taste, corrosion
Solutions:
Causes: Sodium bicarbonate regeneration
Effects: Bitter taste, scale formation, soap scum
Solutions:
Causes: Weather, bather load, chemical imbalances
Effects: Poor water quality, equipment damage
Solutions:
A: pH affects taste, corrosion of plumbing, effectiveness of disinfection, and potential leaching of metals like lead and copper. WHO recommends pH between 6.5-8.5 for optimal water quality.
A: Yes, boiling drives off dissolved CO₂, which can increase pH by 0.2-0.5 units. This is why boiled water often tastes "flat" - the carbonic acid is removed, making it more alkaline.
A: pH can change due to: CO₂ absorption from air, bacterial activity, chemical reactions, temperature changes, and addition of acids or bases from various sources.
A: While some claim health benefits from alkaline water, scientific evidence is limited. Most health organizations don't recommend drinking water with pH above 8.5-9.0 due to potential gastrointestinal issues.