Convert Gallons per hour to Milliliters per second
Instantly convert Gallons per hour (GPH) to Milliliters per second (mL/s) with our free online calculator.
Formula: GPH to mL/s — multiply by 1.05151
Reference Table
| Gallons per hour (GPH) | Milliliters per second (mL/s) |
|---|---|
| 1 | 1.05151 |
| 5 | 5.25755 |
| 10 | 10.5151 |
| 25 | 26.2878 |
| 50 | 52.5755 |
| 100 | 105.151 |
How to Convert Gallons per hour to Milliliters per second
Formula
To convert Gallons per hour (GPH) to Milliliters per second (mL/s): multiply by 1.05151
Step-by-Step
- Start with your value in Gallons per hour (GPH).
- Multiply by 1.05151 to perform the conversion.
- The result is your value expressed in Milliliters per second (mL/s).
Conversion Factor
1 GPH = 1.05151 mL/s
Reverse Factor
1 mL/s = 0.951013 GPH
Worked Example
Convert 25 Gallons per hour to Milliliters per second: 25 GPH = 26.2878 mL/s
About Gallon per hour (GPH)
A US flow-rate unit (US gallons per hour) used for slow, metered, or steady-state low-flow applications. Common applications: aquarium and pond circulation pumps (a typical canister filter for a 75-gallon aquarium delivers 250-350 GPH), water-feature and fountain recirculators, agricultural drip-irrigation emitters (rated 0.5-4 GPH at design pressure per ASABE EP458), residential oil-burner fuel nozzle ratings (most US oil furnaces use 0.5-2.0 GPH nozzles), commercial fuel-dispensing meters (where GPH is the throughput rating, often combined with a separate gallons-pumped-per-minute peak), and reverse-osmosis water-purification membranes (GPH membrane capacity is the marketing spec on most US residential RO systems). Marine fuel-flow meters typically report consumption in GPH, a useful figure for cruising range and fuel-burn-per-mile calculations. 1 GPH = 0.01667 GPM = 0.0631 L/min = 1.0515 × 10⁻⁶ m³/s.
About Milliliter per second (mL/s)
A small-scale flow-rate unit equal to 10⁻⁶ m³/s, used in laboratory chemistry, biotechnology, medical infusions, and micro-fluidic research. Typical applications: high-performance liquid chromatography (HPLC) mobile-phase flow at 0.5-2 mL/s under USP <621>, gas chromatography carrier-gas flow, peristaltic dosing pumps in semiconductor manufacturing (corrosive-chemical metering at sub-mL/s precision), IV-pump bolus delivery in critical care (often reported as mL/hr but internally controlled at mL/s precision), microfluidic lab-on-a-chip devices, syringe-pump fed reactors in chemical research, beer/wine analytical instruments, and 3D-printed bioreactor perfusion systems. The pharmacopeial standard for analytical-grade flow accuracy (USP, EP, JP) is typically ±2% at a defined mL/s set-point. 1 mL/s = 60 mL/min = 0.01585 GPM. Engineers should not confuse volumetric flow (mL/s) with mass flow (mg/s or g/s) for solutions of varying density.
Quick Facts
- 1 Gallon per hour equals 1.05151 Milliliters per second
- 1 Milliliter per second equals 0.951013 Gallons per hour
- Gallon per hour is a unit of volumetric flow rate
- Milliliter per second is a unit of volumetric flow rate
- This conversion is commonly used in plumbing, HVAC systems, and chemical process engineering
- The Gallon per hour belongs to the imperial system
- The Milliliter per second belongs to the metric system
Common Gallon per hour to Milliliter per second Conversions
| Gallons per hour (GPH) | Milliliters per second (mL/s) |
|---|---|
| 0.01 | 0.0105151 |
| 0.1 | 0.105151 |
| 0.25 | 0.262878 |
| 0.5 | 0.525755 |
| 1 | 1.05151 |
| 2 | 2.10302 |
| 3 | 3.15453 |
| 5 | 5.25755 |
| 10 | 10.5151 |
| 15 | 15.7727 |
| 20 | 21.0302 |
| 25 | 26.2878 |
| 50 | 52.5755 |
| 75 | 78.8633 |
| 100 | 105.151 |
| 250 | 262.878 |
| 500 | 525.755 |
| 1000 | 1051.51 |
| 5000 | 5257.55 |
| 10000 | 10515.1 |
Understanding Gallons per hour
The Gallon per hour (symbol: GPH) is a unit of volumetric flow rate. A US flow-rate unit (US gallons per hour) used for slow, metered, or steady-state low-flow applications. Common applications: aquarium and pond circulation pumps (a typical canister filter for a 75-gallon aquarium delivers 250-350 GPH), water-feature and fountain recirculators, agricultural drip-irrigation emitters (rated 0.5-4 GPH at design pressure per ASABE EP458), residential oil-burner fuel nozzle ratings (most US oil furnaces use 0.5-2.0 GPH nozzles), commercial fuel-dispensing meters (where GPH is the throughput rating, often combined with a separate gallons-pumped-per-minute peak), and reverse-osmosis water-purification membranes (GPH membrane capacity is the marketing spec on most US residential RO systems). Marine fuel-flow meters typically report consumption in GPH, a useful figure for cruising range and fuel-burn-per-mile calculations. 1 GPH = 0.01667 GPM = 0.0631 L/min = 1.0515 × 10⁻⁶ m³/s.
It belongs to the imperial measurement system.
Gallons per hour are commonly used in plumbing, HVAC systems, and chemical process engineering.
Understanding Milliliters per second
The Milliliter per second (symbol: mL/s) is a unit of volumetric flow rate. A small-scale flow-rate unit equal to 10⁻⁶ m³/s, used in laboratory chemistry, biotechnology, medical infusions, and micro-fluidic research. Typical applications: high-performance liquid chromatography (HPLC) mobile-phase flow at 0.5-2 mL/s under USP <621>, gas chromatography carrier-gas flow, peristaltic dosing pumps in semiconductor manufacturing (corrosive-chemical metering at sub-mL/s precision), IV-pump bolus delivery in critical care (often reported as mL/hr but internally controlled at mL/s precision), microfluidic lab-on-a-chip devices, syringe-pump fed reactors in chemical research, beer/wine analytical instruments, and 3D-printed bioreactor perfusion systems. The pharmacopeial standard for analytical-grade flow accuracy (USP, EP, JP) is typically ±2% at a defined mL/s set-point. 1 mL/s = 60 mL/min = 0.01585 GPM. Engineers should not confuse volumetric flow (mL/s) with mass flow (mg/s or g/s) for solutions of varying density.
It belongs to the metric measurement system.
Milliliters per second are commonly used in plumbing, HVAC systems, and chemical process engineering.
Why Convert Gallons per hour to Milliliters per second?
Converting between Gallons per hour and Milliliters per second is a frequent requirement for engineers, scientists, and students working with volumetric flow rate values. Different industries and regions favour different unit systems, so having a dependable conversion tool saves time and prevents errors in technical calculations. Whether you are verifying a specification sheet, cross-checking simulation results, or preparing a report for an international audience, accurate volumetric flow rate conversion is essential.
Frequently Asked Questions
How do I convert Gallons per hour to Milliliters per second?
A US flow-rate unit (US gallons per hour) used for slow, metered, or steady-state low-flow applications. To convert Gallons per hour to Milliliters per second, multiply by 1.05151. For example, 25 GPH equals 26.2878 mL/s.
How many Milliliters per second are in 1 Gallon per hour?
There are 1.05151 Milliliters per second in 1 Gallon per hour.
How many Gallons per hour are in 1 Milliliter per second?
There are 0.951013 Gallons per hour in 1 Milliliter per second.
What is the formula for Gallon per hour to Milliliter per second conversion?
The formula is: multiply by 1.05151. This means 1 GPH = 1.05151 mL/s.
Is a Gallon per hour bigger than a Milliliter per second?
No. One Gallon per hour is smaller than one Milliliter per second because 1 GPH equals 1.05151 mL/s, which is greater than 1.
When do you need to convert between Gallons per hour and Milliliters per second?
A small-scale flow-rate unit equal to 10⁻⁶ m³/s, used in laboratory chemistry, biotechnology, medical infusions, and micro-fluidic research. Gallon per hour and Milliliter per second are both volumetric flow units, so conversion comes up whenever one source of information uses one unit and another uses the other — a classic cross-reference challenge in engineering, trade, travel, and everyday life.