pH Calculator
Find the pH of a solution.
Result
How to use
- Enter your values in the fields above.
- Press Calculate to see your result instantly.
- Use the Share button to copy a link to your result.
About this calculator
This calculator finds pH = −log₁₀[H⁺] from a given hydrogen ion concentration, and also derives pOH using the relationship pH + pOH = 14 (at 25°C), so entering one value gives both the acidity and the corresponding basicity reading on the standard 0–14 scale.
It's used by chemistry students working through acid-base problems, by lab technicians and researchers checking solution chemistry, and by anyone maintaining a pool, aquarium or hydroponic garden where pH needs to stay in a specific range for the system to work properly.
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