Log P to natural log P
Type a value in log P to get it in ln P instantly.
4.605ln P
That's 6.5× as greasy as aspirin, while an ideal oral drug is 3.2× greasier. About 99.01% of it ends up in the oily layer.
What it means
Where does it go?
Log P is for the neutral molecule. For anything that ionizes, log D at a stated pH is the figure that matters in the body.
The math
How to convert log P to ln P
To convert log P to natural log P, multiply by 2.30259.
Example: 2 log P × 2.30259 = 4.60517 ln P.
In the other direction, 1 ln P = 0.434294 log P.
Every unit
Your partition in every unit
Tables
log P to ln P conversion table
| log P | ln P |
|---|---|
| -3 log P | -6.90776 ln P |
| -2 log P | -4.60517 ln P |
| -1 log P | -2.30259 ln P |
| 0 log P | 0 ln P |
| 1 log P | 2.30259 ln P |
| 2 log P | 4.60517 ln P |
| 3 log P | 6.90776 ln P |
| 4 log P | 9.21034 ln P |
| 5 log P | 11.5129 ln P |
| 6 log P | 13.8155 ln P |
| 8 log P | 18.4207 ln P |
ln P to log P conversion table
| ln P | log P |
|---|---|
| -3 ln P | -1.30288 log P |
| -2 ln P | -0.868589 log P |
| -1 ln P | -0.434294 log P |
| 0 ln P | 0 log P |
| 1 ln P | 0.434294 log P |
| 2 ln P | 0.868589 log P |
| 3 ln P | 1.30288 log P |
| 4 ln P | 1.73718 log P |
| 5 ln P | 2.17147 log P |
| 6 ln P | 2.60577 log P |
| 8 ln P | 3.47436 log P |
Quick answers
Quick answers
- How many ln P is 1 log P?
- 1 log P is 2.30259 ln P.
- How many ln P is 10 log P?
- 10 log P is 23.0259 ln P.
- How many ln P is 2 log P?
- 2 log P is 4.60517 ln P.
The units
About these units
Log P (log P)
The base-ten logarithm of the octanol–water ratio.
Natural log P (ln P)
The natural-log version, used in thermodynamic work.
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