mL/min to GPH Converter
Enter the flow rate in ml/min below to convert it to gph.
Convert mL/min to GPH (US)
Enter a value in ml/min (mL/min) to convert to gph (us) (GPH).
Milliliters per Minute to US Gallons per Hour Conversion Table
Table showing various milliliters per minute measurements converted to gph. Click any preset value or arrow to load it into the converter.
| mL/min (mL/min) | GPH (US) (GPH) |
|---|---|
| 1 mL/min | 0.0158503 GPH |
| 2 mL/min | 0.0317006 GPH |
| 2.5 mL/min | 0.0396258 GPH |
| 5 mL/min | 0.0792516 GPH |
| 10 mL/min | 0.1585032 GPH |
| 15 mL/min | 0.2377548 GPH |
| 20 mL/min | 0.3170065 GPH |
| 25 mL/min | 0.3962581 GPH |
| 30 mL/min | 0.4755097 GPH |
| 50 mL/min | 0.7925162 GPH |
How to Convert mL/min to GPH
To convert ml/min to gph, multiply the flow rate by the following conversion ratio: 0.0158503 gph/milliliters per minute.
Since one milliliters per minute is equal to 0.0158503 gph, you can use this simple formula to convert:
The flow rate in gph is equal to the flow rate in ml/min multiplied by 0.0158503.
For example, here's how to convert 5 ml/min to gph using the formula above.
How Many GPH Are in a Milliliters per Minute?
There are 0.0158503 gph in a milliliters per minute, which is why we use this value in the formula above.
Our milliliters per minute to us gallons per hour calculator automatically converts your flow rate measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
mL/min and gph are both units used to measure flow rate. Keep reading to learn more about each unit.
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). [1]
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.
What Is a US Gallons per Hour?
A us gallons per hour is a unit of flow rate equal to 0.0630902 liters per minute (L/min), the base unit for flow rate. Equal to 1/60 GPM (0.06309 L/min). [2]
The us gallons per hour is classified as a US customary unit of flow rate. GPH can be abbreviated as GPH; for example, 1 us gallons per hour can be written as 1 GPH.
When working with gph (GPH) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, gph (GPH) are widely used across standard flow rate applications within US customary workflows, engineering documentation, and technical data sheets.
When converting flow rate between ml/min (mL/min) and gph (GPH), keep full floating-point precision (1 mL/min = 0.0158503 GPH; 1 GPH = 63.0901964 mL/min) during intermediate calculations and round only the final us gallons per hour figure to match your instrument tolerance.
More Milliliters per Minute & US Gallons per Hour Conversions
Need to calculate in the opposite direction? Use our gph (us) to ml/min calculator to switch your starting unit immediately. You can also explore related tools such as converting gph (us) to ml/min, converting liters per hour to gph (us), or converting liters per minute to gpm (us).
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 — mL/min (mL/min) to GPH (US) (GPH)
- [2]NIST OWM SpecificationNIST OWM (SI Units — Volume & Flow Capacity)·Unit Specifications: Milliliters per Minute (mL/min) & US Gallons per Hour (GPH) (GPH)
- [3]BIPM ReferenceBIPM (Coherent Volumetric Flow Units (m³/s))·Conversion Factors & Mathematical Basis (mL/min to GPH)