Volume
ft³tobbl
Convert cubic feet (ft³) to oil barrels (42 US gal) (bbl).
Factor1 ft³ = 0.1781076 bbl
Converter
ft³
Accepts numbers or expressions, e.g. 150 + 14.7
Result
bbl
Rendered to 6 significant figures.
Formula
Formula
bbl = ft³ × 0.1781076
Multiply any value in cubic feet by 0.1781076 to obtain the value in oil barrels (42 US gal).
Worked example
Convert 100 ft³ to bbl.
- 01Start with 100 ft³.
- 02Multiply by the conversion factor: 100 × 0.1781076 = 17.8108 bbl.
Result100 ft³ = 17.8108 bbl
Conversion table
| ft³ | bbl |
|---|---|
| 1 | 0.17811 |
| 2 | 0.35622 |
| 5 | 0.89054 |
| 10 | 1.7811 |
| 20 | 3.5622 |
| 50 | 8.9054 |
| 100 | 17.811 |
| 200 | 35.622 |
| 500 | 89.054 |
| 1000 | 178.11 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from ft³ to bbl?
1 ft³ equals 0.1781076 bbl. To convert, multiply the value in cubic feet by 0.1781076.
How do I convert 1 ft³ to bbl?
1 ft³ = 0.178108 bbl. For any value, multiply by 0.1781076.
How do I convert bbl back to ft³?
Divide by the same factor — or equivalently, multiply by 5.614583. So 1 bbl = 5.61458 ft³.
When would I need to convert cubic foot to oil barrel (42 US gal)?
Volume conversions are used for tank sizing, batch calculations, and bridging between vendor specs (gallons, barrels, ft³) and process documentation (m³, litres).
Is the conversion exact?
Yes. Both ft³ and bbl are defined by exact SI relationships, so the displayed factor is exact (any rounding shown is only for display).