pH + pOH Calculator
⚖ Acids, Bases & Equilibrium. Use the pH + pOH formula to find ph, poh: pick the value you want, type the others, and the answer updates as you go.
pH3
Pick the ○ next to the value you want to find, fill in the others, and it solves as you type.
What each letter means
| Quantity | Unit |
|---|---|
| pH | no unit |
| pOH | no unit |
Worked example
Find the ph when pOH = 11.
Using pH + pOH = 14: pH = 3.
Frequently asked questions
What is the formula for pH + pOH?
pH + pOH = 14.
What do the letters stand for, and what units are used?
pH, pOH.
How do you calculate ph?
Put the values into pH + pOH = 14. For example, with pOH = 11, ph = 3.
Can I solve for a different value?
Yes. In the calculator above, pick the circle next to any value (ph, poh) and fill in the others: it rearranges the formula for you.
