One liter per hour is exactly 0.0005885777787 cubic feet per minute, so converting liters per hour 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 rating unit for dosing pumps, drip irrigation and small boilers. 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. 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
liters per hour- The amount you are converting, in liters per hour
0.000588577778691- The exact number of cubic feet per minute in one liter per hour
cubic feet per minute- The converted result
How it works, step by step
- Enter the value in liters per hour.
- It is multiplied by 0.000588577778691, 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 fire hydrant: 2.16e+05 L/h in cubic feet per minute
At 2.16e+05 L/h (a fire hydrant), the same quantity in cubic feet per minute is 2.16e+05 × 0.000588578 = 127.133 CFM. One liter per hour is 0.000588578 cubic feet per minute, so the numbers shrink as expected.
A shower head: 576 L/h in cubic feet per minute
Take a shower head, roughly 576 L/h. The conversion is a single multiplication — 576 × 0.000588578 — giving 0.339021 CFM. Because the relationship is proportional, doubling the input doubles the answer to 0.678042 CFM.
How to read your score
Frequently asked questions
How many cubic feet per minute are in one liter per hour?
Exactly 0.000588577778691. 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 liters per hour to cubic feet per minute?
cubic feet per minute = liters per hour × 0.000588577778691. Reversed, liters per hour = cubic feet per minute ÷ 0.000588577778691, which is the same as multiplying by 1699.01079552.
Which is the bigger unit, the liter per hour or the cubic foot per minute?
The cubic foot per minute. One liter per hour is only 0.000588578 of a cubic foot per minute, so it takes 1699.01 liters 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 liter per hour?
The rating unit for dosing pumps, drip irrigation and small boilers.
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 L/h to CFM in my head?
Plenty of people do this in their head: divide by 1700 instead of using the exact factor 0.0005885777787. At 100 that shortcut gives 0.058823529 cubic feet per minute, off by 0.000034 cubic feet per minute or about 0.06%. Fine for a rough estimate, not fine for anything you are cutting to size or dosing.
Liters Per Hour to cubic feet per minute reference tables
| Liters Per Hour | Cubic Feet Per Minute |
|---|---|
| 0.5 L/h | 0.000294289 CFM |
| 1 L/h | 0.000588578 CFM |
| 2 L/h | 0.00117716 CFM |
| 3 L/h | 0.00176573 CFM |
| 5 L/h | 0.00294289 CFM |
| 10 L/h | 0.00588578 CFM |
| 20 L/h | 0.0117716 CFM |
| 25 L/h | 0.0147144 CFM |
| 50 L/h | 0.0294289 CFM |
| 75 L/h | 0.0441433 CFM |
| 100 L/h | 0.0588578 CFM |
| 250 L/h | 0.147144 CFM |
| 500 L/h | 0.294289 CFM |
| 1000 L/h | 0.588578 CFM |
| 5000 L/h | 2.94289 CFM |
Exact factor: 1 liter per hour = 0.000588577778691 cubic feet per minute.
| Quantity | L/h | CFM |
|---|---|---|
| A dripping tap | 0.36 L/h | 0.0002119 CFM |
| A bathroom tap | 360 L/h | 0.2119 CFM |
| A shower head | 576 L/h | 0.339 CFM |
| A garden hose | 1080 L/h | 0.6357 CFM |
| A fire hydrant | 2.16e+05 L/h | 127.1 CFM |
| The Thames at London | 2.34e+08 L/h | 1.377e+05 CFM |
Published reference values, converted with the same factor this page uses.