Direct conversion
Convert barrel (US) [bbl US] to cubic foot [ft³] instantly with formula, examples, chart, and FAQs.
1 barrel (US) [bbl US] = 4.210938 cubic foot [ft³]
1 barrel (US) [bbl US] = 4.210938 cubic foot [ft³]
Example: 1 barrel (US) [bbl US] equals 4.210938 cubic foot [ft³].
Volume conversions use cubic metre as the reference unit. US liquid units, metric litres, and cubic units are converted with fixed factors stored in the unit table.
Displayed results are rounded for readability. The calculator keeps enough precision for everyday use and switches to scientific notation for very large or very small values. Last reviewed: 2026-08-14.
The barrel (US) (bbl US) is a volume unit used to express measurements in this converter.
HistoryThis unit is included because it appears in practical measurement systems, technical references, product specifications, or everyday conversion needs.
Current useUse barrel (US) when comparing volume values, checking specifications, converting between systems, or preparing quick estimates.
The cubic foot is a volume unit equal to the space inside a cube one foot on each side.
HistoryCubic feet come from foot-based customary measurement and are used for three-dimensional capacity.
Current useCubic feet are used for refrigerators, shipping boxes, storage, construction materials, and airflow ratings.
| barrel (US) [bbl US] | cubic foot [ft³] |
|---|---|
| 1 | 4.210938 |
| 2 | 8.421875 |
| 5 | 21.054688 |
| 10 | 42.109375 |
| 20 | 84.21875 |
| 25 | 105.273438 |
| 50 | 210.546875 |
| 100 | 421.09375 |
| 1000 | 4210.9375 |
Use this formula: 1 barrel (US) [bbl US] = 4.210938 cubic foot [ft³] Enter your value in the calculator and the result updates instantly.
1 barrel (US) [bbl US] equals 4.210938 cubic foot [ft³].
Yes. Use the swap button in the calculator or open the related reverse conversion link when it is listed on this page.