Free online pKa to Ka Calculator – Easily convert the Pka value to Ka, Enter the pKa values then click the calculate button.
pKa to Ka Formula
The formula to convert from pKa to Ka is:
Ka = 10^(-pKa)
How to convert pKa to Ka?
if you have the pKa of an acid, you can use the above formula to calculate the Ka.
Here’s a step-by-step example:
- Given pKa: example pka values is 10.26
- Put value into the above formula
- Ka = 10^(-pKa) = 10^(-10.26)
pka to Ka Table
| pKa | ka | pKa | ka |
|---|---|---|---|
| 1 | 0.1 | 1.1 | 0.07943 |
| 1.3 | 0.05011 | 1.4 | 0.03981 |
| 1.5 | 0.03162 | 1.6 | 0.02511 |
| 1.7 | 0.019952 | 1.8 | 0.01584 |
| 1.9 | 0.01258 | 2 | 0.01 |
| 2.5 | 0.003162 | 3 | 0.001 |
| 3.5 | 0.0003162 | 4 | 0.0001 |
| 4.88 | 0.00001318 | 5 | 0.00001 |
| 5.2 | 0.0000063095 | 6.323 | 0.00000047533 |
| 7.6 | 0.000000025118 | 9.10 | 0.000000000794328 |