Degrees API to pounds per US gallon
Type a value in °API to get it in lb/gal instantly.
7.078lb/gal
That's 1.02× as heavy as Brent crude, while medium crude is 1.04× denser. That is light crude: high yields of gasoline and diesel.
What it means
How heavy is that oil?
API gravity is defined at 60 °F. Oil expands with heat, so a field measurement must be corrected to that temperature before the number means anything.
The math
How to convert °API to lb/gal
The API scale is built around water at 10: °API = 141.5 ÷ SG − 131.5, and back again SG = 141.5 ÷ (°API + 131.5). Because SG is on the bottom, the scale runs backwards.
Example: 35 °API = 7.07775 lb/gal.
Every unit
Your gravity in every unit
Tables
°API to lb/gal conversion table
| °API | lb/gal |
|---|---|
| 5 °API | 8.63329 lb/gal |
| 10 °API | 8.32823 lb/gal |
| 15 °API | 8.04399 lb/gal |
| 20 °API | 7.77851 lb/gal |
| 25 °API | 7.53 lb/gal |
| 30 °API | 7.29687 lb/gal |
| 35 °API | 7.07775 lb/gal |
| 40 °API | 6.8714 lb/gal |
| 45 °API | 6.67674 lb/gal |
| 50 °API | 6.49281 lb/gal |
| 60 °API | 6.15376 lb/gal |
lb/gal to °API conversion table
| lb/gal | °API |
|---|---|
| 5 lb/gal | 104.189 °API |
| 10 lb/gal | -13.6555 °API |
| 15 lb/gal | -52.937 °API |
| 20 lb/gal | -72.5778 °API |
| 25 lb/gal | -84.3622 °API |
| 30 lb/gal | -92.2185 °API |
| 35 lb/gal | -97.8302 °API |
| 40 lb/gal | -102.039 °API |
| 45 lb/gal | -105.312 °API |
| 50 lb/gal | -107.931 °API |
| 60 lb/gal | -111.859 °API |
Quick answers
Quick answers
- How many lb/gal is 1 °API?
- 1 °API is 8.89392 lb/gal.
- How many lb/gal is 10 °API?
- 10 °API is 8.32823 lb/gal.
- How many lb/gal is 35 °API?
- 35 °API is 7.07775 lb/gal.
The units
About these units
Degrees API (°API)
The petroleum industry standard. Water is 10; higher means lighter.
Pounds per US gallon (lb/gal)
The US field measure. Water is 8.33 lb/gal.
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