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[H⁺] / [OH⁻] Concentration Calculator
Dedicated reverse lookup: from any acid/base descriptor to both ion concentrations.
Calculator
Results update as you type. Every step of the working is shown below.
Examples:
Result
Enter values above — the answer appears here instantly, with full working.
Formula used
[H⁺] = 10^(−pH); [OH⁻] = Kw/[H⁺]
Every result substitutes your values into this relation step by step above.
Assumptions
- 25 °C — Kw = 1.0×10⁻¹⁴.
- Activities ≈ concentrations (dilute).