Instant PH/ POH Calculator
pH
pH & pOH Colorful Calculator
Compute pH, pOH, [H⁺], [OH⁻] and visualise indicator colours for common acid-base indicators.
Notes:
- For inputs of [H⁺] or [OH⁻] provide molar concentrations (M).
- % w/v is interpreted as grams solute per 100 mL solution (used only for approximate pH if substance is strong acid/base).
- Temperature adjusts KW: KW = 1e-14 at 25°C (default approximation used).