pH & pOH Calculator
Calculate pH, pOH, and hydroxide ion concentration [OH-] from hydrogen ion concentration [H+] with acidity classification.
Calculated pH (-log [H+])
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Neutral Solution
pOH (14 - pH):7.00
Hydroxide [OH-]:1.00 × 10⁻⁷ M
How to Use
- Enter the hydrogen ion [h+].
- Select pH & pOH to view the calculated ph (-log [h+]).