pH to pOH
Type a value in pH to get it in pOH instantly.
7pOH
That's about the acidity of pure water. Neutral, near pure water and blood.
Convert the other way: pOH to pH
What it means
How acidic is that?
Values are for water at 25 °C. The neutral point shifts slightly with temperature: it is 6.14 in water at 100 °C.
The math
How to convert pH to pOH
In water at 25 °C the two always add to 14: pOH = 14 − pH. An acidic pH of 3 is a pOH of 11.
Example: 7 pH = 7 pOH.
Every unit
Your acidity in every unit
Tables
pH to pOH conversion table
| pH | pOH |
|---|---|
| 0 pH | 14 pOH |
| 1 pH | 13 pOH |
| 2 pH | 12 pOH |
| 3 pH | 11 pOH |
| 4 pH | 10 pOH |
| 5 pH | 9 pOH |
| 6 pH | 8 pOH |
| 7 pH | 7 pOH |
| 8 pH | 6 pOH |
| 9 pH | 5 pOH |
| 10 pH | 4 pOH |
| 11 pH | 3 pOH |
| 12 pH | 2 pOH |
| 13 pH | 1 pOH |
| 14 pH | 0 pOH |
pOH to pH conversion table
| pOH | pH |
|---|---|
| 0 pOH | 14 pH |
| 1 pOH | 13 pH |
| 2 pOH | 12 pH |
| 3 pOH | 11 pH |
| 4 pOH | 10 pH |
| 5 pOH | 9 pH |
| 6 pOH | 8 pH |
| 7 pOH | 7 pH |
| 8 pOH | 6 pH |
| 9 pOH | 5 pH |
| 10 pOH | 4 pH |
| 11 pOH | 3 pH |
| 12 pOH | 2 pH |
| 13 pOH | 1 pH |
| 14 pOH | 0 pH |
Quick answers
Quick answers
- How many pOH is 1 pH?
- 1 pH is 13 pOH.
- How many pOH is 10 pH?
- 10 pH is 4 pOH.
- How many pOH is 7 pH?
- 7 pH is 7 pOH.
The units
About these units
pH (pH)
The standard acidity scale: the negative logarithm of hydrogen ion concentration.
pOH (pOH)
The same idea for hydroxide ions. pH and pOH always add to 14 in water at 25 °C.
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