pOH of 0 to pH
A pOH of 0 corresponds to a pH of 14, indicating an extremely strong base.
How to use this tool
- Enter poh value in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your ph and the full breakdown beneath it.
A pOH value of 0 represents the strongest possible base on the standard scale, with a corresponding pH of 14.
Frequently asked questions
- Why does pH + pOH = 14?
- Because Kw = [H⁺][OH⁻] = 1×10⁻¹⁴ at 25 °C. Taking −log of both sides: pH + pOH = 14.
- Does this hold at other temperatures?
- No — Kw changes with temperature. At 37 °C (body temp) pH + pOH ≈ 13.6.