Convert Gallons per minute to Cubic meters per second
Instantly convert Gallons per minute (GPM) to Cubic meters per second (m³/s) with our free online calculator.
Formula: GPM to m³/s — multiply by 6.3090e-5
Reference Table
| Gallons per minute (GPM) | Cubic meters per second (m³/s) |
|---|---|
| 1 | 0.0000630902 |
| 5 | 0.000315451 |
| 10 | 0.000630902 |
| 25 | 0.00157725 |
| 50 | 0.00315451 |
| 100 | 0.00630902 |
How to Convert Gallons per minute to Cubic meters per second
Formula
To convert Gallons per minute (GPM) to Cubic meters per second (m³/s): multiply by 6.3090e-5
Step-by-Step
- Start with your value in Gallons per minute (GPM).
- Multiply by 6.3090e-5 to perform the conversion.
- The result is your value expressed in Cubic meters per second (m³/s).
Conversion Factor
1 GPM = 0.0000630902 m³/s
Reverse Factor
1 m³/s = 15850.3 GPM
Worked Example
Convert 25 Gallons per minute to Cubic meters per second: 25 GPM = 0.00157725 m³/s
About Gallon per minute (GPM)
A US customary flow-rate unit (US gallons per minute) used in plumbing, HVAC, fire protection, and swimming-pool circulation. GPM is the primary US sizing unit for residential water softeners, well pumps, sprinkler systems, and NFPA-standard fire-protection systems. A typical US showerhead is 2–2.5 GPM; a 4-inch fire hydrant can deliver 500–1,500 GPM. 1 GPM ≈ 3.785 L/min.
About Cubic meter per second (m³/s)
The SI unit of volumetric flow rate — the volume of fluid passing a given point per unit time. m³/s is the universal unit in fluid-dynamics research, large-pipeline engineering, river and flood hydrology, and industrial process flow. Also called the "cumec" in hydrology. The Amazon River discharge is ~209,000 m³/s. Most practical applications use smaller units like L/s or m³/hr because m³/s values are typically very small (a household faucet is ~0.0002 m³/s).
Quick Facts
- 1 Gallon per minute equals 0.0000630902 Cubic meters per second
- 1 Cubic meter per second equals 15850.3 Gallons per minute
- Gallon per minute is a unit of volumetric flow rate
- Cubic meter 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 Cubic meter per second belongs to the metric system
Common Gallon per minute to Cubic meter per second Conversions
| Gallons per minute (GPM) | Cubic meters per second (m³/s) |
|---|---|
| 0.01 | 6.309020e-7 |
| 0.1 | 0.00000630902 |
| 0.25 | 0.0000157725 |
| 0.5 | 0.0000315451 |
| 1 | 0.0000630902 |
| 2 | 0.00012618 |
| 3 | 0.000189271 |
| 5 | 0.000315451 |
| 10 | 0.000630902 |
| 15 | 0.000946353 |
| 20 | 0.0012618 |
| 25 | 0.00157725 |
| 50 | 0.00315451 |
| 75 | 0.00473176 |
| 100 | 0.00630902 |
| 250 | 0.0157725 |
| 500 | 0.0315451 |
| 1000 | 0.0630902 |
| 5000 | 0.315451 |
| 10000 | 0.630902 |
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) used in plumbing, HVAC, fire protection, and swimming-pool circulation. GPM is the primary US sizing unit for residential water softeners, well pumps, sprinkler systems, and NFPA-standard fire-protection systems. A typical US showerhead is 2–2.5 GPM; a 4-inch fire hydrant can deliver 500–1,500 GPM. 1 GPM ≈ 3.785 L/min.
It belongs to the imperial measurement system.
Gallons per minute are commonly used in plumbing, HVAC systems, and chemical process engineering.
Understanding Cubic meters per second
The Cubic meter per second (symbol: m³/s) is a unit of volumetric flow rate. The SI unit of volumetric flow rate — the volume of fluid passing a given point per unit time. m³/s is the universal unit in fluid-dynamics research, large-pipeline engineering, river and flood hydrology, and industrial process flow. Also called the "cumec" in hydrology. The Amazon River discharge is ~209,000 m³/s. Most practical applications use smaller units like L/s or m³/hr because m³/s values are typically very small (a household faucet is ~0.0002 m³/s).
It belongs to the metric measurement system.
Cubic meters per second are commonly used in plumbing, HVAC systems, and chemical process engineering.
Why Convert Gallons per minute to Cubic meters per second?
Converting between Gallons per minute and Cubic meters 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 Cubic meters per second?
A US customary flow-rate unit (US gallons per minute) used in plumbing, HVAC, fire protection, and swimming-pool circulation. To convert Gallons per minute to Cubic meters per second, multiply by 6.3090e-5. For example, 25 GPM equals 0.00157725 m³/s.
How many Cubic meters per second are in 1 Gallon per minute?
There are 0.0000630902 Cubic meters per second in 1 Gallon per minute.
How many Gallons per minute are in 1 Cubic meter per second?
There are 15850.3 Gallons per minute in 1 Cubic meter per second.
What is the formula for Gallon per minute to Cubic meter per second conversion?
The formula is: multiply by 6.3090e-5. This means 1 GPM = 0.0000630902 m³/s.
Is a Gallon per minute bigger than a Cubic meter per second?
Yes. One Gallon per minute is larger than one Cubic meter per second because 1 GPM equals 0.0000630902 m³/s, which is less than 1.
When do you need to convert between Gallons per minute and Cubic meters per second?
The SI unit of volumetric flow rate — the volume of fluid passing a given point per unit time. Gallon per minute and Cubic meter 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.