One US gallon per day is exactly 2.628757641e-06 cubic meters per minute, so converting US gallons per day to cubic meters 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 reverse-osmosis membranes and water demand. Compressor and large-fan output 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. 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 meters per minute so the number you get has something to be compared against.
The formula
US gallons per day- The amount you are converting, in US gallons per day
2.62875764122e-06- The exact number of cubic meters per minute in one US gallon per day
cubic meters per minute- The converted result
How it works, step by step
- Enter the value in US gallons per day.
- It is multiplied by 2.62875764122e-06, the exact factor between the two units.
- The answer is shown in cubic meters per minute, with the reverse conversion beneath it.
- Check the reference table if you want a figure of comparable size.
Worked examples
A shower head: 3650 GPD in cubic meters per minute
Take a shower head, roughly 3650 GPD. The conversion is a single multiplication — 3650 × 2.62876e-06 — giving 0.00959497 m³/min. Because the relationship is proportional, doubling the input doubles the answer to 0.0191899 m³/min.
A garden hose: 6850 GPD in cubic meters per minute
A garden hose comes to about 6850 GPD. Multiplying by the factor: 6850 × 2.62876e-06 = 0.018007 m³/min. Dividing the answer back by 2.62876e-06 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 meters per minute are in one US gallon per day?
Exactly 2.62875764122e-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 US gallons per day to cubic meters per minute?
cubic meters per minute = US gallons per day × 2.62875764122e-06. Reversed, US gallons per day = cubic meters per minute ÷ 2.62875764122e-06, which is the same as multiplying by 380,407.833846.
Which is the bigger unit, the US gallon per day or the cubic meter per minute?
The cubic meter per minute. One US gallon per day is only 2.62876e-06 of a cubic meter per minute, so it takes 380,408 US gallons per day to make one cubic meter 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 US gallon per day?
The rating unit for reverse-osmosis membranes and water demand.
What is a cubic meter per minute?
Compressor and large-fan output 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.
Is there a quick way to do GPD to m³/min in my head?
Plenty of people do this in their head: divide by 380,000 instead of using the exact factor 0.000003. At 100 that shortcut gives 0.00026315789 cubic meters per minute, off by 0.000000 cubic meters per minute or about 0.11%. Fine for a rough estimate, not fine for anything you are cutting to size or dosing.
Us Gallons Per Day to cubic meters per minute reference tables
| Us Gallons Per Day | Cubic Meters Per Minute |
|---|---|
| 0.5 GPD | 1.31438e-06 m³/min |
| 1 GPD | 2.62876e-06 m³/min |
| 2 GPD | 5.25752e-06 m³/min |
| 3 GPD | 7.88627e-06 m³/min |
| 5 GPD | 1.31438e-05 m³/min |
| 10 GPD | 2.62876e-05 m³/min |
| 20 GPD | 5.25752e-05 m³/min |
| 25 GPD | 6.57189e-05 m³/min |
| 50 GPD | 0.000131438 m³/min |
| 75 GPD | 0.000197157 m³/min |
| 100 GPD | 0.000262876 m³/min |
| 250 GPD | 0.000657189 m³/min |
| 500 GPD | 0.00131438 m³/min |
| 1000 GPD | 0.00262876 m³/min |
| 5000 GPD | 0.0131438 m³/min |
Exact factor: 1 US gallon per day = 2.62875764122e-06 cubic meters per minute.
| Quantity | GPD | m³/min |
|---|---|---|
| A dripping tap | 2.282 GPD | 6e-06 m³/min |
| A bathroom tap | 2282 GPD | 0.006 m³/min |
| A shower head | 3652 GPD | 0.0096 m³/min |
| A garden hose | 6847 GPD | 0.018 m³/min |
| A fire hydrant | 1.369e+06 GPD | 3.6 m³/min |
| The Thames at London | 1.484e+09 GPD | 3900 m³/min |
Published reference values, converted with the same factor this page uses.