Education

pH Calculator

Convert between pH, pOH, [H⁺] and [OH⁻].

Education

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How it works

pH = −log₁₀[H⁺], pH + pOH = 14 at 25 °C.

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How do I use it?

Fill in the options and press “Calculate”. Check the result, then copy or download it.

How does it work?

pH = −log₁₀[H⁺], pH + pOH = 14 at 25 °C.

Is my data uploaded?

No. Everything is processed in your browser and nothing is sent to a server. No account is needed.