GPD to m³/h Converter
Enter the flow rate in gpd below to convert it to m³/h.
Convert GPD (US) to m³/h
Enter a value in gpd (us) (GPD) to convert to m³/h (m³/h).
US Gallons per Day to Cubic Meters per Hour Conversion Table
Table showing various us gallons per day measurements converted to m³/h. Click any preset value or arrow to load it into the converter.
| GPD (US) (GPD) | m³/h (m³/h) |
|---|---|
| 1 GPD | 0.000157725 m³/h |
| 2 GPD | 0.000315451 m³/h |
| 2.5 GPD | 0.000394314 m³/h |
| 5 GPD | 0.000788627 m³/h |
| 10 GPD | 0.0015773 m³/h |
| 15 GPD | 0.0023659 m³/h |
| 20 GPD | 0.0031545 m³/h |
| 25 GPD | 0.0039431 m³/h |
| 30 GPD | 0.0047318 m³/h |
| 50 GPD | 0.0078863 m³/h |
How to Convert GPD to m³/h
To convert gpd to m³/h, multiply the flow rate by the following conversion ratio: 0.000157725 m³/h/us gallons per day.
Since one us gallons per day is equal to 0.000157725 m³/h, you can use this simple formula to convert:
The flow rate in m³/h is equal to the flow rate in gpd multiplied by 0.000157725.
For example, here's how to convert 5 gpd to m³/h using the formula above.
How Many m³/h Are in a US Gallons per Day?
There are 0.000157725 m³/h in a us gallons per day, which is why we use this value in the formula above.
Our us gallons per day to cubic meters per hour calculator automatically converts your flow rate measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
GPD and m³/h are both units used to measure flow rate. Keep reading to learn more about each unit.
What Is a US Gallons per Day?
A us gallons per day is a unit of flow rate equal to 0.0026288 liters per minute (L/min), the base unit for flow rate. Water treatment flow unit. [1]
The us gallons per day is classified as a US customary unit of flow rate. GPD can be abbreviated as GPD; for example, 1 us gallons per day can be written as 1 GPD.
When working with gpd (GPD) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, gpd (GPD) are widely used across fine-tolerance laboratory, analytical, and micro-scale flow rate measurements within US customary workflows, engineering documentation, and technical data sheets.
What Is a Cubic Meters per Hour?
A cubic meters per hour is a unit of flow rate equal to 16.6666667 liters per minute (L/min), the base unit for flow rate. Equal to 16.6667 L/min. [2]
The cubic meters per hour is classified as a metric and SI-compatible unit of flow rate. m³/h can be abbreviated as m³/h; for example, 1 cubic meters per hour can be written as 1 m³/h.
When working with m³/h (m³/h) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, m³/h (m³/h) are widely used across standard flow rate applications within SI metric workflows, engineering documentation, and technical data sheets.
When converting flow rate between gpd (GPD) and m³/h (m³/h), keep full floating-point precision (1 GPD = 0.000157725 m³/h; 1 m³/h = 6,340.1292566 GPD) during intermediate calculations and round only the final cubic meters per hour figure to match your instrument tolerance.
More US Gallons per Day & Cubic Meters per Hour Conversions
Need to calculate in the opposite direction? Use our m³/h to gpd (us) calculator to switch your starting unit immediately. You can also explore related tools such as converting m³/h to gpd (us), converting cfm to m³/h, or converting gpm (us) to m³/h.
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 — GPD (US) (GPD) to m³/h (m³/h)
- [2]NIST OWM SpecificationNIST OWM (SI Units — Volume & Flow Capacity)·Unit Specifications: US Gallons per Day (GPD) (GPD) & Cubic Meters per Hour (m³/h)
- [3]BIPM ReferenceBIPM (Coherent Volumetric Flow Units (m³/s))·Conversion Factors & Mathematical Basis (GPD to m³/h)