Converter
logarithmic chemical quantity
pH
exact
- Record
- M637
- Definition quality
- Standardized
- Conversion mode
- formula
- Calculator
- Formula-based
Definition
pH is defined using hydrogen-ion activity and a base-10 logarithm.
Reference value
pH converts through a formula rather than a simple multiplier.
Modern use
Modern use is context-dependent and varies by region or measurement system.