Free pH Calculator
Calculate the pH of a solution from the hydrogen ion concentration.
M
pH
3.00
pOH11.00
How to Calculate pH
Formula
pH = -log10([H+])
pH ranges from 0 (very acidic) to 14 (very basic). pH 7 is neutral.
Example Calculation
Find the pH of a solution with [H+] = 0.001 M.
- 01pH = -log10(0.001)
- 02pH = -log10(10^-3)
- 03pH = 3
Frequently Asked Questions
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