pKa to Ka calculator

Free online pKa to Ka Calculator – Easily convert the Pka value to Ka, Enter the pKa values then click the calculate button.

Ka value:
Ka to pKa calculatorAll Chemistry Calculator

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

pKakapKaka
10.11.10.07943
1.30.050111.40.03981
1.50.031621.60.02511
1.70.0199521.80.01584
1.90.0125820.01
2.50.00316230.001
3.50.000316240.0001
4.880.0000131850.00001
5.20.00000630956.3230.00000047533
7.60.0000000251189.100.000000000794328