pOH of 4 to pH
A pOH of 4 corresponds to a pH of 10, indicating a moderately basic solution.
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 of 4 gives a pH of 10, a mildly alkaline solution typical of baking soda or milk of magnesia.
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.