Calculate pH, pOH, hydrogen ion concentration [H⁺], and hydroxide ion concentration [OH⁻] instantly. Includes a visual pH scale and common substance reference table. Pure client-side.
| Substance | pH |
|---|---|
| Battery acid | 0 |
| Lemon juice | 2 |
| Vinegar | 3 |
| Orange juice | 3.5 |
| Coffee | 5 |
| Milk | 6.5 |
| Pure water | 7 |
| Blood | 7.4 |
| Sea water | 8 |
| Baking soda | 9 |
| Ammonia | 11 |
| Bleach | 13 |
| Lye (drain cleaner) | 14 |