To convert barrels per day to cubic feet per hour, multiply by 0.2339409722. That factor is the whole relationship: both units measure volumetric flow, so the conversion is a proportion with no offset and no substance-specific constant.
The unit oil production is reported in worldwide. Gas appliance and small-flow rating in the US.
Standard versus actual volume. Gas flow in CFM depends on pressure and temperature, which is why compressor ratings say SCFM and specify the reference conditions. Converting the number is exact; comparing two ratings measured at different conditions is not. Below the calculator there is a step table for the values people look up most, and a second table putting real volumetric flow figures into cubic feet per hour so the number you get has something to be compared against.
The formula
barrels per day- The amount you are converting, in barrels per day
0.233940972222- The exact number of cubic feet per hour in one barrel per day
cubic feet per hour- The converted result
How it works, step by step
- Enter the value in barrels per day.
- It is multiplied by 0.233940972222, the exact factor between the two units.
- The answer is shown in cubic feet per hour, with the reverse conversion beneath it.
- Check the reference table if you want a figure of comparable size.
Worked examples
A shower head: 87 bbl/d in cubic feet per hour
A shower head comes to about 87 bbl/d. Multiplying by the factor: 87 × 0.233941 = 20.3529 CFH. Dividing the answer back by 0.233941 returns the figure you started with, which is the quickest way to check you have the factor the right way up.
A fire hydrant: 3.26e+04 bbl/d in cubic feet per hour
Take a fire hydrant, roughly 3.26e+04 bbl/d. The conversion is a single multiplication — 3.26e+04 × 0.233941 — giving 7626.48 CFH. Because the relationship is proportional, doubling the input doubles the answer to 15,253 CFH.
How to read your score
Frequently asked questions
How many cubic feet per hour are in one barrel per day?
Exactly 0.233940972222. Every figure on this page is that one number multiplied by your input, so the only rounding is at the display step.
What is the formula to convert barrels per day to cubic feet per hour?
cubic feet per hour = barrels per day × 0.233940972222. Reversed, barrels per day = cubic feet per hour ÷ 0.233940972222, which is the same as multiplying by 4.2745825603.
Which is the bigger unit, the barrel per day or the cubic foot per hour?
The cubic foot per hour. One barrel per day is only 0.233941 of a cubic foot per hour, so it takes 4.27458 barrels per day to make one cubic foot per hour.
What does this quantity actually measure?
Both units measure volumetric flow. That is why a single factor is enough: there is no temperature offset and no material property involved, unlike conversions that cross between different quantities.
What is a barrel per day?
The unit oil production is reported in worldwide.
What is a cubic foot per hour?
Gas appliance and small-flow rating in the US.
Why does my answer differ from another converter?
Almost always because the other tool rounded the factor before multiplying. This page keeps full double precision through the calculation and rounds only for display, and it prints the factor it used so you can see where any difference came from.
Is there a quick way to do bbl/d to CFH in my head?
Plenty of people do this in their head: divide by 4.3 instead of using the exact factor 0.2339409722. At 100 that shortcut gives 23.255814 cubic feet per hour, off by 0.1383 cubic feet per hour or about 0.59%. Fine for a rough estimate, not fine for anything you are cutting to size or dosing.
Barrels Per Day to cubic feet per hour reference tables
| Barrels Per Day | Cubic Feet Per Hour |
|---|---|
| 0.5 bbl/d | 0.11697 CFH |
| 1 bbl/d | 0.233941 CFH |
| 2 bbl/d | 0.467882 CFH |
| 3 bbl/d | 0.701823 CFH |
| 5 bbl/d | 1.1697 CFH |
| 10 bbl/d | 2.33941 CFH |
| 20 bbl/d | 4.67882 CFH |
| 25 bbl/d | 5.84852 CFH |
| 50 bbl/d | 11.697 CFH |
| 75 bbl/d | 17.5456 CFH |
| 100 bbl/d | 23.3941 CFH |
| 250 bbl/d | 58.4852 CFH |
| 500 bbl/d | 116.97 CFH |
| 1000 bbl/d | 233.941 CFH |
| 5000 bbl/d | 1169.7 CFH |
Exact factor: 1 barrel per day = 0.233940972222 cubic feet per hour.
| Quantity | bbl/d | CFH |
|---|---|---|
| A dripping tap | 0.05434 bbl/d | 0.01271 CFH |
| A bathroom tap | 54.34 bbl/d | 12.71 CFH |
| A shower head | 86.95 bbl/d | 20.34 CFH |
| A garden hose | 163 bbl/d | 38.14 CFH |
| A fire hydrant | 3.261e+04 bbl/d | 7628 CFH |
| The Thames at London | 3.532e+07 bbl/d | 8.264e+06 CFH |
Published reference values, converted with the same factor this page uses.