To convert milliliters per minute to liters per hour, multiply by 0.06. 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.
Laboratory and infusion flow: HPLC pumps and syringe drivers are set in mL/min. The rating unit for dosing pumps, drip irrigation and small boilers.
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 liters per hour so the number you get has something to be compared against.
The formula
milliliters per minute- The amount you are converting, in milliliters per minute
0.06- The exact number of liters per hour in one milliliter per minute
liters per hour- The converted result
How it works, step by step
- Enter the value in milliliters per minute.
- It is multiplied by 0.06, the exact factor between the two units.
- The answer is shown in liters per hour, with the reverse conversion beneath it.
- Check the reference table if you want a figure of comparable size.
Worked examples
A dripping tap: 6 mL/min in liters per hour
At 6 mL/min (a dripping tap), the same quantity in liters per hour is 6 × 0.06 = 0.36 L/h. One milliliter per minute is 0.06 liters per hour, so the numbers shrink as expected.
A fire hydrant: 3.6e+06 mL/min in liters per hour
Take a fire hydrant, roughly 3.6e+06 mL/min. The conversion is a single multiplication — 3.6e+06 × 0.06 — giving 216,000 L/h. Because the relationship is proportional, doubling the input doubles the answer to 432,000 L/h.
How to read your score
Frequently asked questions
How many liters per hour are in one milliliter per minute?
Exactly 0.06. 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 milliliters per minute to liters per hour?
liters per hour = milliliters per minute × 0.06. Reversed, milliliters per minute = liters per hour ÷ 0.06, which is the same as multiplying by 16.6666666667.
Which is the bigger unit, the milliliter per minute or the liter per hour?
The liter per hour. One milliliter per minute is only 0.06 of a liter per hour, so it takes 16.6667 milliliters per minute to make one liter 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 milliliter per minute?
Laboratory and infusion flow: HPLC pumps and syringe drivers are set in mL/min.
What is a liter per hour?
The rating unit for dosing pumps, drip irrigation and small boilers.
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 mL/min to L/h in my head?
Plenty of people do this in their head: divide by 17 instead of using the exact factor 0.06. At 100 that shortcut gives 5.8823529 liters per hour, off by 0.1176 liters per hour or about 1.96%. Fine for a rough estimate, not fine for anything you are cutting to size or dosing.
Milliliters Per Minute to liters per hour reference tables
| Milliliters Per Minute | Liters Per Hour |
|---|---|
| 0.5 mL/min | 0.03 L/h |
| 1 mL/min | 0.06 L/h |
| 2 mL/min | 0.12 L/h |
| 3 mL/min | 0.18 L/h |
| 5 mL/min | 0.3 L/h |
| 10 mL/min | 0.6 L/h |
| 20 mL/min | 1.2 L/h |
| 25 mL/min | 1.5 L/h |
| 50 mL/min | 3 L/h |
| 75 mL/min | 4.5 L/h |
| 100 mL/min | 6 L/h |
| 250 mL/min | 15 L/h |
| 500 mL/min | 30 L/h |
| 1000 mL/min | 60 L/h |
| 5000 mL/min | 300 L/h |
Exact factor: 1 milliliter per minute = 0.06 liters per hour.
| Quantity | mL/min | L/h |
|---|---|---|
| A dripping tap | 6 mL/min | 0.36 L/h |
| A bathroom tap | 6000 mL/min | 360 L/h |
| A shower head | 9600 mL/min | 576 L/h |
| A garden hose | 1.8e+04 mL/min | 1080 L/h |
| A fire hydrant | 3.6e+06 mL/min | 2.16e+05 L/h |
| The Thames at London | 3.9e+09 mL/min | 2.34e+08 L/h |
Published reference values, converted with the same factor this page uses.