Volume
ac·fttobbl
Convert acre-feet (ac·ft) to oil barrels (42 US gal) (bbl).
Factor1 ac·ft = 7758.367 bbl
Converter
ac·ft
Accepts numbers or expressions, e.g. 150 + 14.7
Result
bbl
Rendered to 6 significant figures.
Formula
Formula
bbl = ac·ft × 7758.367
Multiply any value in acre-feet by 7758.367 to obtain the value in oil barrels (42 US gal).
Worked example
Convert 1 ac·ft to bbl.
- 01Start with 1 ac·ft.
- 02Multiply by the conversion factor: 1 × 7758.367 = 7758.37 bbl.
Result1 ac·ft = 7758.37 bbl
Conversion table
| ac·ft | bbl |
|---|---|
| 1 | 7758.4 |
| 2 | 15517 |
| 5 | 38792 |
| 10 | 77584 |
| 20 | 1.5517e+5 |
| 50 | 3.8792e+5 |
| 100 | 7.7584e+5 |
| 200 | 1.5517e+6 |
| 500 | 3.8792e+6 |
| 1000 | 7.7584e+6 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from ac·ft to bbl?
1 ac·ft equals 7758.367 bbl. To convert, multiply the value in acre-feet by 7758.367.
How do I convert 1 ac·ft to bbl?
1 ac·ft = 7758.37 bbl. For any value, multiply by 7758.367.
How do I convert bbl back to ac·ft?
Divide by the same factor — or equivalently, multiply by 0.0001288931. So 1 bbl = 0.000128893 ac·ft.
When would I need to convert acre-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?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).