GPD to Liters per Hour Converter
Enter the flow rate in gpd below to convert it to liters per hour.
Convert GPD (US) to Liters per Hour
Enter a value in gpd (us) (GPD) to convert to liters per hour (L/h).
US Gallons per Day to Liters per Hour Conversion Table
Table showing various us gallons per day measurements converted to liters per hour. Click any preset value or arrow to load it into the converter.
| GPD (US) (GPD) | Liters per Hour (L/h) |
|---|---|
| 1 GPD | 0.1577255 L/h |
| 2 GPD | 0.315451 L/h |
| 2.5 GPD | 0.3943137 L/h |
| 5 GPD | 0.7886275 L/h |
| 10 GPD | 1.5772549 L/h |
| 15 GPD | 2.3658824 L/h |
| 20 GPD | 3.1545098 L/h |
| 25 GPD | 3.9431373 L/h |
| 30 GPD | 4.7317647 L/h |
| 50 GPD | 7.8862746 L/h |
How to Convert GPD to Liters per Hour
To convert gpd to liters per hour, multiply the flow rate by the following conversion ratio: 0.1577255 liters per hour/us gallons per day.
Since one us gallons per day is equal to 0.1577255 liters per hour, you can use this simple formula to convert:
The flow rate in liters per hour is equal to the flow rate in gpd multiplied by 0.1577255.
For example, here's how to convert 5 gpd to liters per hour using the formula above.
How Many Liters per Hour Are in a US Gallons per Day?
There are 0.1577255 liters per hour in a us gallons per day, which is why we use this value in the formula above.
Our us gallons per day to liters 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 liters per hour 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 Liters per Hour?
A liters per hour is a unit of flow rate equal to 1/60 of a liters per minute (0.0166667 L/min). Equal to 1/60 L/min. [2]
The liters per hour is classified as a metric and SI-compatible unit of flow rate. Liters per Hour can be abbreviated as L/h; for example, 1 liters per hour can be written as 1 L/h.
When working with liters per hour (L/h) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, liters per hour (L/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 liters per hour (L/h), keep full floating-point precision (1 GPD = 0.1577255 L/h; 1 L/h = 6.3401293 GPD) during intermediate calculations and round only the final liters per hour figure to match your instrument tolerance.
More US Gallons per Day & Liters per Hour Conversions
Need to calculate in the opposite direction? Use our liters per hour to gpd (us) calculator to switch your starting unit immediately. You can also explore related tools such as converting liters per hour to gpd (us), converting liters per minute to gpm (us), or converting gpm (us) to liters per minute.
Convert from GPD
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 Liters per Hour (L/h)
- [2]NIST OWM SpecificationNIST OWM (SI Units — Volume & Flow Capacity)·Unit Specifications: US Gallons per Day (GPD) (GPD) & Liters per Hour (L/h)
- [3]BIPM ReferenceBIPM (Coherent Volumetric Flow Units (m³/s))·Conversion Factors & Mathematical Basis (GPD to L/h)