basic

Buffer Capacity Beta Value Calculator

β ≈ 2.303·C·Ka·[H⁺]/(Ka+[H⁺])² near pKa.

Estimates buffer capacity β (mol/L per pH unit) from buffer concentration, pKa, and current pH using the Henderson-Hasselbalch framework.

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Dr. Helena Ortiz By Dr. Helena Ortiz
Published Last reviewed 1 min read

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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

β = ln(10)·C·Ka·[H⁺] / (Ka + [H⁺])²

In depth

Estimates buffer capacity β (mol/L per pH unit) from buffer concentration, pKa, and current pH using the Henderson-Hasselbalch framework.