One barrel per day is exactly 0.003899016204 cubic feet per minute, so converting barrels per day to cubic feet per minute is a single multiplication. Enter any figure and the result appears as you type — the arithmetic runs in your browser, so nothing is sent anywhere.
The unit oil production is reported in worldwide. The airflow rating for fans, HVAC and compressors 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. The tables underneath give both a plain step-by-step lookup and a list of real quantities expressed in cubic feet per minute, so you can sanity-check whether your answer is a plausible size.
The formula
barrels per day- The amount you are converting, in barrels per day
0.0038990162037- The exact number of cubic feet per minute in one barrel per day
cubic feet per minute- The converted result
How it works, step by step
- Enter the value in barrels per day.
- It is multiplied by 0.0038990162037, the exact factor between the two units.
- The answer is shown in cubic feet per minute, with the reverse conversion beneath it.
- Check the reference table if you want a figure of comparable size.
Worked examples
A dripping tap: 0.0543 bbl/d in cubic feet per minute
At 0.0543 bbl/d (a dripping tap), the same quantity in cubic feet per minute is 0.0543 × 0.00389902 = 0.000211717 CFM. One barrel per day is 0.00389902 cubic feet per minute, so the numbers shrink as expected.
A shower head: 87 bbl/d in cubic feet per minute
A shower head comes to about 87 bbl/d. Multiplying by the factor: 87 × 0.00389902 = 0.339214 CFM. Dividing the answer back by 0.00389902 returns the figure you started with, which is the quickest way to check you have the factor the right way up.
How to read your score
Frequently asked questions
How many cubic feet per minute are in one barrel per day?
Exactly 0.0038990162037. 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 minute?
cubic feet per minute = barrels per day × 0.0038990162037. Reversed, barrels per day = cubic feet per minute ÷ 0.0038990162037, which is the same as multiplying by 256.474953618.
Which is the bigger unit, the barrel per day or the cubic foot per minute?
The cubic foot per minute. One barrel per day is only 0.00389902 of a cubic foot per minute, so it takes 256.475 barrels per day to make one cubic foot per minute.
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 minute?
The airflow rating for fans, HVAC and compressors 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 CFM in my head?
Plenty of people do this in their head: divide by 260 instead of using the exact factor 0.003899016204. At 100 that shortcut gives 0.38461538 cubic feet per minute, off by 0.005286 cubic feet per minute or about 1.36%. Fine for a rough estimate, not fine for anything you are cutting to size or dosing.
Barrels Per Day to cubic feet per minute reference tables
| Barrels Per Day | Cubic Feet Per Minute |
|---|---|
| 0.5 bbl/d | 0.00194951 CFM |
| 1 bbl/d | 0.00389902 CFM |
| 2 bbl/d | 0.00779803 CFM |
| 3 bbl/d | 0.011697 CFM |
| 5 bbl/d | 0.0194951 CFM |
| 10 bbl/d | 0.0389902 CFM |
| 20 bbl/d | 0.0779803 CFM |
| 25 bbl/d | 0.0974754 CFM |
| 50 bbl/d | 0.194951 CFM |
| 75 bbl/d | 0.292426 CFM |
| 100 bbl/d | 0.389902 CFM |
| 250 bbl/d | 0.974754 CFM |
| 500 bbl/d | 1.94951 CFM |
| 1000 bbl/d | 3.89902 CFM |
| 5000 bbl/d | 19.4951 CFM |
Exact factor: 1 barrel per day = 0.0038990162037 cubic feet per minute.
| Quantity | bbl/d | CFM |
|---|---|---|
| A dripping tap | 0.05434 bbl/d | 0.0002119 CFM |
| A bathroom tap | 54.34 bbl/d | 0.2119 CFM |
| A shower head | 86.95 bbl/d | 0.339 CFM |
| A garden hose | 163 bbl/d | 0.6357 CFM |
| A fire hydrant | 3.261e+04 bbl/d | 127.1 CFM |
| The Thames at London | 3.532e+07 bbl/d | 1.377e+05 CFM |
Published reference values, converted with the same factor this page uses.