🧪 pH Calculator

Calculate pH from H⁺ concentration or find H⁺ from pH. Acid/base/neutral indicator.

H⁺ Concentration (mol/L)

pH Value

Acidic 🔴

pOH

11.0000

[H⁺]

0.001

[OH⁻]

1.000e-11

pH + pOH

14.00

pH Scale: 0–6.9 = Acidic | 7 = Neutral | 7.1–14 = Basic
Formula: pH = -log₁₀[H⁺] | pOH = 14 - pH