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Volumetric Flow Rate

bbl/daytogal/day (US)

Convert oil barrels per day (bbl/day) to US gallons per day (gal/day (US)).

Factor1 bbl/day = 42 gal/day (US)

Converter

bbl/day

Accepts numbers or expressions, e.g. 150 + 14.7

Result
4200gal/day (US)

Rendered to 6 significant figures.

Formula

Formula
gal/day (US) = bbl/day × 42

Multiply any value in oil barrels per day by 42 to obtain the value in US gallons per day.

Worked example

Convert 100 bbl/day to gal/day (US).

  1. 01Start with 100 bbl/day.
  2. 02Multiply by the conversion factor: 100 × 42 = 4200 gal/day (US).
Result100 bbl/day = 4200 gal/day (US)

Conversion table

bbl/daygal/day (US)
142
284
5210
10420
20840
502100
1004200
2008400
50021000
100042000

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from bbl/day to gal/day (US)?
1 bbl/day equals 42 gal/day (US). To convert, multiply the value in oil barrels per day by 42.
How do I convert 1 bbl/day to gal/day (US)?
1 bbl/day = 42 gal/day (US). For any value, multiply by 42.
How do I convert gal/day (US) back to bbl/day?
Divide by the same factor — or equivalently, multiply by 0.02380952. So 1 gal/day (US) = 0.0238095 bbl/day.
When would I need to convert oil barrel per day to US gallon per day?
Flow-rate conversions show up in pump curve interpretation, control valve sizing (Cv vs Kv), and aligning vendor specifications with process simulation outputs. bbl/day to gal/day (US) is a frequently needed conversion for flow datasheet preparation.
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).

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