pH from [H+]
Calculate pH from [H+] instantly. Free online calculator with the exact formula, a worked example, and metric units. No signup required.
pH from [H+]
[H+]mol/L
pH
7
More about: pH from [H+]
What it calculates
The “pH from [H+]” calculator computes pH from 1 parameter: [h+] (mol/L).
A standard physics formula used in educational and engineering tasks.
Example calculation
With parameters [H+] = 0 mol/L the result is 7 (pH = −log₁₀[H+]).
How to use
- Enter the parameter values — every field above is adjustable with a slider.
- The result and related metrics are calculated automatically as you type.
- Use the additional metrics shown (if any) where needed.
- Copy the result or bookmark the page.