This page converts cubic feet per hour into cubic feet per minute using the factor 0.01666666667, and shows the reverse figure alongside it. Both units measure volumetric flow, which is why one number does the whole job.
The airflow rating for fans, HVAC and compressors in the US. 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 minute so the number you get has something to be compared against.
The formula
cubic feet per hour- The amount you are converting, in cubic feet per hour
0.0166666666667- The exact number of cubic feet per minute in one cubic foot per hour
cubic feet per minute- The converted result
How it works, step by step
- Enter the value in cubic feet per hour.
- It is multiplied by 0.0166666666667, 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 bathroom tap: 12.7 CFH in cubic feet per minute
At 12.7 CFH (a bathroom tap), the same quantity in cubic feet per minute is 12.7 × 0.0166667 = 0.211667 CFM. One cubic foot per hour is 0.0166667 cubic feet per minute, so the numbers shrink as expected.
A dripping tap: 0.0127 CFH in cubic feet per minute
At 0.0127 CFH (a dripping tap), the same quantity in cubic feet per minute is 0.0127 × 0.0166667 = 0.000211667 CFM. One cubic foot per hour is 0.0166667 cubic feet per minute, so the numbers shrink as expected.
How to read your score
Frequently asked questions
How many cubic feet per minute are in one cubic foot per hour?
Exactly 0.0166666666667. 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 cubic feet per hour to cubic feet per minute?
cubic feet per minute = cubic feet per hour × 0.0166666666667. Reversed, cubic feet per hour = cubic feet per minute ÷ 0.0166666666667, which is the same as multiplying by 60.
Which is the bigger unit, the cubic foot per hour or the cubic foot per minute?
The cubic foot per minute. One cubic foot per hour is only 0.0166667 of a cubic foot per minute, so it takes 60 cubic feet per hour 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 cubic foot per hour?
Gas appliance and small-flow rating in the US.
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.
Cubic Feet Per Hour to cubic feet per minute reference tables
| Cubic Feet Per Hour | Cubic Feet Per Minute |
|---|---|
| 0.5 CFH | 0.00833333 CFM |
| 1 CFH | 0.0166667 CFM |
| 2 CFH | 0.0333333 CFM |
| 3 CFH | 0.05 CFM |
| 5 CFH | 0.0833333 CFM |
| 10 CFH | 0.166667 CFM |
| 20 CFH | 0.333333 CFM |
| 25 CFH | 0.416667 CFM |
| 50 CFH | 0.833333 CFM |
| 75 CFH | 1.25 CFM |
| 100 CFH | 1.66667 CFM |
| 250 CFH | 4.16667 CFM |
| 500 CFH | 8.33333 CFM |
| 1000 CFH | 16.6667 CFM |
| 5000 CFH | 83.3333 CFM |
Exact factor: 1 cubic foot per hour = 0.0166666666667 cubic feet per minute.
| Quantity | CFH | CFM |
|---|---|---|
| A dripping tap | 0.01271 CFH | 0.0002119 CFM |
| A bathroom tap | 12.71 CFH | 0.2119 CFM |
| A shower head | 20.34 CFH | 0.339 CFM |
| A garden hose | 38.14 CFH | 0.6357 CFM |
| A fire hydrant | 7628 CFH | 127.1 CFM |
| The Thames at London | 8.264e+06 CFH | 1.377e+05 CFM |
Published reference values, converted with the same factor this page uses.