Log K to equilibrium constant
Type a value in log K to get it in K instantly.
1,000K
That's about the same as a favorable reaction. At equilibrium about 99.9% has reacted.
Convert the other way: K to log K
What it means
Which way does it go?
Values are at 25 °C. Free energy scales with temperature, so the same K means a different ΔG° in a furnace.
The math
How to convert log K to K
The constant and the free energy are the same statement: ΔG° = −RT ln K, which at 25 °C is ΔG° = −5.708 × log₁₀K kJ/mol.
Example: 3 log K = 1,000 K.
Every unit
Your equilibrium in every unit
Tables
log K to K conversion table
| log K | K |
|---|---|
| -10 log K | 1×10⁻¹⁰ K |
| -6 log K | 1×10⁻⁶ K |
| -3 log K | 0.001 K |
| -1 log K | 0.1 K |
| 0 log K | 1 K |
| 1 log K | 10 K |
| 3 log K | 1,000 K |
| 6 log K | 1,000,000 K |
| 10 log K | 1×10¹⁰ K |
| 12 log K | 1×10¹² K |
K to log K conversion table
| K | log K |
|---|---|
| 1×10⁻¹⁰ K | -10 log K |
| 1×10⁻⁶ K | -6 log K |
| 0.001 K | -3 log K |
| 0.1 K | -1 log K |
| 1 K | 0 log K |
| 10 K | 1 log K |
| 1,000 K | 3 log K |
| 1,000,000 K | 6 log K |
| 1×10¹⁰ K | 10 log K |
| 1×10¹² K | 12 log K |
Quick answers
Quick answers
- How many K is 1 log K?
- 1 log K is 10 K.
- How many K is 10 log K?
- 10 log K is 1×10¹⁰ K.
- How many K is 3 log K?
- 3 log K is 1,000 K.
The units
About these units
Log K (log K)
The base-ten logarithm, which is what tables usually print.
Equilibrium constant (K)
Products over reactants at equilibrium.
Keep going