This page converts liters per hour into cubic meters per hour using the factor 0.001, and shows the reverse figure alongside it. Both units measure volumetric flow, which is why one number does the whole job.
The rating unit for dosing pumps, drip irrigation and small boilers. The standard rating unit for pumps and ventilation in metric markets.
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 meters per hour, so you can sanity-check whether your answer is a plausible size.
The formula
liters per hour- The amount you are converting, in liters per hour
0.001- The exact number of cubic meters per hour in one liter per hour
cubic meters per hour- The converted result
How it works, step by step
- Enter the value in liters per hour.
- It is multiplied by 0.001, the exact factor between the two units.
- The answer is shown in cubic meters per hour, 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 meters per hour
Take a fire hydrant, roughly 2.16e+05 L/h. The conversion is a single multiplication — 2.16e+05 × 0.001 — giving 216 m³/h. Because the relationship is proportional, doubling the input doubles the answer to 432 m³/h.
A shower head: 576 L/h in cubic meters per hour
Take a shower head, roughly 576 L/h. The conversion is a single multiplication — 576 × 0.001 — giving 0.576 m³/h. Because the relationship is proportional, doubling the input doubles the answer to 1.152 m³/h.
How to read your score
Frequently asked questions
How many cubic meters per hour are in one liter per hour?
Exactly 0.001. 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 meters per hour?
cubic meters per hour = liters per hour × 0.001. Reversed, liters per hour = cubic meters per hour ÷ 0.001, which is the same as multiplying by 1000.
Which is the bigger unit, the liter per hour or the cubic meter per hour?
The cubic meter per hour. One liter per hour is only 0.001 of a cubic meter per hour, so it takes 1000 liters per hour to make one cubic meter 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 liter per hour?
The rating unit for dosing pumps, drip irrigation and small boilers.
What is a cubic meter per hour?
The standard rating unit for pumps and ventilation in metric markets.
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.
Liters Per Hour to cubic meters per hour reference tables
| Liters Per Hour | Cubic Meters Per Hour |
|---|---|
| 0.5 L/h | 0.0005 m³/h |
| 1 L/h | 0.001 m³/h |
| 2 L/h | 0.002 m³/h |
| 3 L/h | 0.003 m³/h |
| 5 L/h | 0.005 m³/h |
| 10 L/h | 0.01 m³/h |
| 20 L/h | 0.02 m³/h |
| 25 L/h | 0.025 m³/h |
| 50 L/h | 0.05 m³/h |
| 75 L/h | 0.075 m³/h |
| 100 L/h | 0.1 m³/h |
| 250 L/h | 0.25 m³/h |
| 500 L/h | 0.5 m³/h |
| 1000 L/h | 1 m³/h |
| 5000 L/h | 5 m³/h |
Exact factor: 1 liter per hour = 0.001 cubic meters per hour.
| Quantity | L/h | m³/h |
|---|---|---|
| A dripping tap | 0.36 L/h | 0.00036 m³/h |
| A bathroom tap | 360 L/h | 0.36 m³/h |
| A shower head | 576 L/h | 0.576 m³/h |
| A garden hose | 1080 L/h | 1.08 m³/h |
| A fire hydrant | 2.16e+05 L/h | 216 m³/h |
| The Thames at London | 2.34e+08 L/h | 2.34e+05 m³/h |
Published reference values, converted with the same factor this page uses.