Convert Gallons per minute to Milliliters per second
Instantly convert Gallons per minute (GPM) to Milliliters per second (mL/s) with our free online calculator.
Formula: GPM to mL/s — multiply by 63.0902
Reference Table
| Gallons per minute (GPM) | Milliliters per second (mL/s) |
|---|---|
| 1 | 63.0902 |
| 5 | 315.451 |
| 10 | 630.902 |
| 25 | 1577.25 |
| 50 | 3154.51 |
| 100 | 6309.02 |
How to Convert Gallons per minute to Milliliters per second
Formula
To convert Gallons per minute (GPM) to Milliliters per second (mL/s): multiply by 63.0902
Step-by-Step
- Start with your value in Gallons per minute (GPM).
- Multiply by 63.0902 to perform the conversion.
- The result is your value expressed in Milliliters per second (mL/s).
Conversion Factor
1 GPM = 63.0902 mL/s
Reverse Factor
1 mL/s = 0.0158503 GPM
Worked Example
Convert 25 Gallons per minute to Milliliters per second: 25 GPM = 1577.25 mL/s
About Gallon per minute (GPM)
A US customary flow-rate unit (US gallons per minute, where 1 US gallon = 3.785411784 liters per NIST SP 811) used universally in US plumbing, HVAC, fire protection, agricultural irrigation, and swimming-pool circulation. GPM is the primary US sizing unit for residential water softeners (the IAPMO Z601 test method rates ion-exchange capacity at a defined GPM), well-pump submersibles, lawn sprinkler design (the GPM at each emitter sets zone sizing), NFPA 13 fire-sprinkler systems (head-flow allocations in GPM), and pool circulation (turnover rates require X GPM × hours). Reference values: a US WaterSense-certified showerhead is ≤ 2.0 GPM, an older US showerhead is 2.5-3 GPM, a residential dishwasher is ~3-4 GPM peak, a 4-inch municipal fire hydrant delivers 500-1,500 GPM (NFPA test pressure 20 psi residual). 1 GPM = 3.7854 L/min = 0.06309 L/s. Care: US GPM ≠ Imperial GPM (a UK gallon is 4.54609 L, so 1 Imperial GPM = 1.201 US GPM).
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 minute equals 63.0902 Milliliters per second
- 1 Milliliter per second equals 0.0158503 Gallons per minute
- Gallon per minute 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 minute belongs to the imperial system
- The Milliliter per second belongs to the metric system
Common Gallon per minute to Milliliter per second Conversions
| Gallons per minute (GPM) | Milliliters per second (mL/s) |
|---|---|
| 0.01 | 0.630902 |
| 0.1 | 6.30902 |
| 0.25 | 15.7725 |
| 0.5 | 31.5451 |
| 1 | 63.0902 |
| 2 | 126.18 |
| 3 | 189.271 |
| 5 | 315.451 |
| 10 | 630.902 |
| 15 | 946.353 |
| 20 | 1261.8 |
| 25 | 1577.25 |
| 50 | 3154.51 |
| 75 | 4731.77 |
| 100 | 6309.02 |
| 250 | 15772.6 |
| 500 | 31545.1 |
| 1000 | 63090.2 |
| 5000 | 315451 |
| 10000 | 630902 |
Understanding Gallons per minute
The Gallon per minute (symbol: GPM) is a unit of volumetric flow rate. A US customary flow-rate unit (US gallons per minute, where 1 US gallon = 3.785411784 liters per NIST SP 811) used universally in US plumbing, HVAC, fire protection, agricultural irrigation, and swimming-pool circulation. GPM is the primary US sizing unit for residential water softeners (the IAPMO Z601 test method rates ion-exchange capacity at a defined GPM), well-pump submersibles, lawn sprinkler design (the GPM at each emitter sets zone sizing), NFPA 13 fire-sprinkler systems (head-flow allocations in GPM), and pool circulation (turnover rates require X GPM × hours). Reference values: a US WaterSense-certified showerhead is ≤ 2.0 GPM, an older US showerhead is 2.5-3 GPM, a residential dishwasher is ~3-4 GPM peak, a 4-inch municipal fire hydrant delivers 500-1,500 GPM (NFPA test pressure 20 psi residual). 1 GPM = 3.7854 L/min = 0.06309 L/s. Care: US GPM ≠ Imperial GPM (a UK gallon is 4.54609 L, so 1 Imperial GPM = 1.201 US GPM).
It belongs to the imperial measurement system.
Gallons per minute 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 minute to Milliliters per second?
Converting between Gallons per minute 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 minute to Milliliters per second?
A US customary flow-rate unit (US gallons per minute, where 1 US gallon = 3. To convert Gallons per minute to Milliliters per second, multiply by 63.0902. For example, 25 GPM equals 1577.25 mL/s.
How many Milliliters per second are in 1 Gallon per minute?
There are 63.0902 Milliliters per second in 1 Gallon per minute.
How many Gallons per minute are in 1 Milliliter per second?
There are 0.0158503 Gallons per minute in 1 Milliliter per second.
What is the formula for Gallon per minute to Milliliter per second conversion?
The formula is: multiply by 63.0902. This means 1 GPM = 63.0902 mL/s.
Is a Gallon per minute bigger than a Milliliter per second?
No. One Gallon per minute is smaller than one Milliliter per second because 1 GPM equals 63.0902 mL/s, which is greater than 1.
When do you need to convert between Gallons per minute 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 minute 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.