GPM to mL/min Converter
Enter the flow rate in gpm below to convert it to ml/min.
Convert GPM (US) to mL/min
Enter a value in gpm (us) (GPM) to convert to ml/min (mL/min).
US Gallons per Minute to Milliliters per Minute Conversion Table
Table showing various us gallons per minute measurements converted to ml/min. Click any preset value or arrow to load it into the converter.
| GPM (US) (GPM) | mL/min (mL/min) |
|---|---|
| 1 GPM | 3,785.411784 mL/min |
| 2 GPM | 7,570.823568 mL/min |
| 2.5 GPM | 9,463.52946 mL/min |
| 5 GPM | 18,927.05892 mL/min |
| 10 GPM | 37,854.11784 mL/min |
| 15 GPM | 56,781.17676 mL/min |
| 20 GPM | 75,708.23568 mL/min |
| 25 GPM | 94,635.2946 mL/min |
| 30 GPM | 113,562.35352 mL/min |
| 50 GPM | 189,270.5892 mL/min |
How to Convert GPM to mL/min
To convert gpm to ml/min, multiply the flow rate by the following conversion ratio: 3,785.411784 ml/min/us gallons per minute.
Since one us gallons per minute is equal to 3,785.411784 ml/min, you can use this simple formula to convert:
The flow rate in ml/min is equal to the flow rate in gpm multiplied by 3,785.411784.
For example, here's how to convert 5 gpm to ml/min using the formula above.
How Many mL/min Are in a US Gallons per Minute?
There are 3,785.411784 ml/min in a us gallons per minute, which is why we use this value in the formula above.
Our us gallons per minute to milliliters per minute calculator automatically converts your flow rate measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
GPM and ml/min are both units used to measure flow rate. Keep reading to learn more about each unit.
What Is a US Gallons per Minute?
A us gallons per minute is a unit of flow rate equal to 3.7854118 liters per minute (L/min), the base unit for flow rate. Standard US plumbing & pump flow rate (3.78541 L/min). [1]
The us gallons per minute is classified as a US customary unit of flow rate. GPM can be abbreviated as GPM; for example, 1 us gallons per minute can be written as 1 GPM.
When working with gpm (GPM) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, gpm (GPM) are widely used across standard flow rate applications within US customary workflows, engineering documentation, and technical data sheets.
What Is a Milliliters per Minute?
A milliliters per minute is a unit of flow rate equal to 1/1,000 of a liters per minute (0.001 L/min). Equal to 0.001 L/min (1 cm³/min). [2]
The milliliters per minute is classified as a metric and SI-compatible unit of flow rate. mL/min can be abbreviated as mL/min; for example, 1 milliliters per minute can be written as 1 mL/min.
In the metric system, "milli" is the standard SI prefix for thousandths, or 10⁻³. This makes the milliliters per minute (mL/min) a convenient decimal multiple of the liters per minute (L/min).
In practice, ml/min (mL/min) are widely used across fine-tolerance laboratory, analytical, and micro-scale flow rate measurements within SI metric workflows, engineering documentation, and technical data sheets.
When converting flow rate between gpm (GPM) and ml/min (mL/min), keep full floating-point precision (1 GPM = 3,785.411784 mL/min; 1 mL/min = 0.000264172 GPM) during intermediate calculations and round only the final milliliters per minute figure to match your instrument tolerance.
More US Gallons per Minute & Milliliters per Minute Conversions
Need to calculate in the opposite direction? Use our ml/min to gpm (us) calculator to switch your starting unit immediately. You can also explore related tools such as converting ml/min to gpm (us), converting gpm (us) to liters per minute, or converting gpm (us) to m³/s.
Frequently Asked Questions
References
- [1]NIST SP 811 StandardNIST SP 811 (NIST SP 811 App. B.9 (Volume Divided by Time))·Flow Rate Metrology Standard — GPM (US) (GPM) to mL/min (mL/min)
- [2]NIST OWM SpecificationNIST OWM (SI Units — Volume & Flow Capacity)·Unit Specifications: US Gallons per Minute (GPM) (GPM) & Milliliters per Minute (mL/min)
- [3]BIPM ReferenceBIPM (Coherent Volumetric Flow Units (m³/s))·Conversion Factors & Mathematical Basis (GPM to mL/min)