Skip to main content
0 results ↑ ↓ navigate, ↵ select

Liter/minute to Gallon (US)/minute (L/min to gal (US)/min) Calculator & Formula

Rate this converter 0 of 0 ratings
Live Conversion • ISO 80000-4:2019 Certified
1 Liter/minute = 0.26417205 Gallon (US)/minute
1 L/min = 0.264172 gal (US)/min • 1 gal (US)/min = 3.785412 L/min
Liter/minute to Gallon (US)/minute: One Liter/minute is equal to 0.26417205 Gallons (us)/minute.
Certified Authority Value
0.26417205
gal (US)/min
Exact: 1 gal (US)/min ≡ 3.785411784 L/min
L/min
L/min
Swap to Gallon (US)/minute to Liter/minute
gal (US)/min
gal (US)/min 0.26417205
Quick Values:
1 L/min 5 L/min 10 L/min 25 L/min 50 L/min 100 L/min 250 L/min 500 L/min 1,000 L/min
Conversion Formula
To convert Liter/minute to Gallon (US)/minute, multiply by 0.26417205
L/min × 0.26417205 = gal (US)/min

Calculation: 1 L/min × 0.26417205 = 0.26417205 gal (US)/min

Common Liter/minute to Gallon (US)/minute Calculations

Quick-lookup reference table showing calculated equivalents for standard increments between Liter/minute (L/min) and Gallon (US)/minute (gal (US)/min).

Tap any row to calculate
Gallon (US)/minute to Liter/minute: Reciprocal Summary
Gallon (US)/minute to Liter/minute Conversion Reference Table
Reciprocal & Equivalent Value Scientific Notation
1 gal (US)/min is equal to 3.785412 L/min (Liter/minute) 3.785 × 10⁰
5 gal (US)/min is equal to 18.927059 L/min (Liter/minute) 1.893 × 10¹
10 gal (US)/min is equal to 37.854118 L/min (Liter/minute) 3.785 × 10¹
50 gal (US)/min is equal to 189.270589 L/min (Liter/minute) 1.893 × 10²
100 gal (US)/min is equal to 378.541178 L/min (Liter/minute) 3.785 × 10²
View Complete 15-Row Gallon (US)/minute to Liter/minute Table

Real-World Context & Everyday Benchmarks

Tap to load into converter

To help contextualize these units in everyday life, science, and engineering, here are verified real-world reference points for Liter/minute (L/min) and Gallon (US)/minute (gal (US)/min):

Liter/minute References:

  • Standard water-saving residential bathroom showerhead water flow limit 9 L/min
  • Standard domestic kitchen sink faucet aerator maximum flow rate 6 L/min
  • Resting adult human pulmonary ventilation air inhalation flow rate 6 L/min

Gallon (US)/minute References:

  • EPA WaterSense certified residential bathroom sink faucet flow limit (1.5 gpm) 1.5 gpm
  • Standard residential outdoor garden hose discharge delivery flow rate (5 gpm) 5 gpm
  • Commercial building automatic fire sprinkler head water discharge rate (25 gpm) 25 gpm
  • Fire department commercial attack line firefighting hose water delivery (150 gpm) 150 gpm

Tap any benchmark above to automatically calculate its exact equivalent in Gallon (US)/minute.

ISQ Dimension: [L³ T⁻¹] Coherent SI Unit: cubic meter per second (m³/s) Fluid Dynamics & Rheology

How to Convert Liter/minute to Gallon (US)/minute

Converting Liter/minute (L/min) to Gallon (US)/minute (gal (US)/min) is a core calculation in Volumetric Flow Rate, which quantifies the volume of fluid passing through a designated conduit cross-section per unit of time. This calculation navigates the boundary between the International Metric System (SI) and British Imperial / US Customary engineering standards. In contemporary metrology, Imperial units are defined in terms of exact SI standards via international agreements—notably NIST SP 811 and the 1959 International Yard and Pound Agreement. Exactly 1 Liter/minute equals 0.264172 Gallon (US)/minute, while 1 gal (US)/min equals 3.785412 L/min.

Direct Factor1 L/min = 0.264172 gal (US)/min
Inverse Ratio1 gal (US)/min = 3.785412 L/min
Conversion ScaleMetric SI to British Imperial / US Customary Bridge
First-Principles SI Derivation ProofNIST SP 811 / ISO 80000 Compliance

Mathematical Conversion Derivation via Coherent SI Base Unit

Under the International System of Quantities (ISQ), dimensional conversion between non-SI units is rigorously resolved by bridging through the coherent SI base unit (cubic meter per second (m³/s)) without arbitrary rounding:

Vtarget=Vsource×(ksource→SIktarget→SI)V_{\text{target}} = V_{\text{source}} \times \left( \frac{k_{\text{source} \to \text{SI}}}{k_{\text{target} \to \text{SI}}} \right)
Universal Dimensional Conversion Law (ISO 80000 / NIST SP 811)
1. Source SI Bridge (ksource):1 L/min = 1.666667 × 10⁻⁵ cubic meter per second (m³/s)
2. Target SI Bridge (ktarget):1 gal (US)/min = 6.30902 × 10⁻⁵ cubic meter per second (m³/s)
Step-by-step substitution for Liter/minute → Gallon (US)/minute:V(gal (US)/min) = V(L/min) × ( 1.666667 × 10⁻⁵ / 6.30902 × 10⁻⁵ ) = V(L/min) × 0.264172
Mathematical FormulaValue in Gallon (US)/minute = Value in Liter/minute × 0.26417205Direct computational formula applied for standard conversion.
Worked Example

Evaluating an input of 24 Liter/minute (L/min) produces 6.340129 Gallon (US)/minute (gal (US)/min). In heavy-duty utility and industrial workloads, 1000 L/min equals 264.172052 gal (US)/min.

Inverse check: 1 gal (US)/min = 3.785412 L/min.

Understanding Liter/minute and Gallon (US)/minute

Liter/minute

L/min
Standard Unit

A Liter/minute (L/min) is a recognized unit for volumetric flow rate.

Applications & Practical Context

In practical flow terms, a standard water-saving residential bathroom showerhead water flow limit equals 9 L/min, a standard domestic kitchen sink faucet aerator maximum flow rate equals 6 L/min, a resting adult human pulmonary ventilation air inhalation flow rate equals 6 L/min.

Physical Setup

A physical magnitude of 1 L/min corresponds to 1.666667 × 10⁻⁵ m³/s in standard SI measurement.

Conversion to SI Unit: cubic meter per second (m³/s)
1 L/min = 1.666667 × 10⁻⁵ m³/s

Gallon (US)/minute

gal (US)/min
Imperial / US

A Gallon (US)/minute (gal (US)/min) is an imperial and US customary unit for volumetric flow rate.

Applications & Practical Context

In practical flow terms, a EPA WaterSense certified residential bathroom sink faucet flow limit (1.5 gpm) equals 1.5 gpm, a standard residential outdoor garden hose discharge delivery flow rate (5 gpm) equals 5 gpm, a commercial building automatic fire sprinkler head water discharge rate (25 gpm) equals 25 gpm.

Physical Setup

A physical magnitude of 1 gal (US)/min corresponds to 6.30902 × 10⁻⁵ m³/s in standard SI measurement.

Conversion to SI Unit: cubic meter per second (m³/s)
1 gal (US)/min = 6.30902 × 10⁻⁵ m³/s

Domain Metrology & Engineering Applications

Governing Law & Equation

Hydrodynamic Continuity Equation (Q = A · v̄)

Measurement Instrumentation

Rigorously quantified in laboratory and field settings using electromagnetic inductive flowmeters, ultrasonic transit-time meters, turbine flowmeters, and differential orifice plates.

Primary Industry Sectors

Applied across municipal water supply distribution, chemical process loops, oil & gas pipeline custody transfer, and HVAC hydronic balancing under international metrology standard ISO 80000-4:2019, ASME MFC-3M.

Physical Orders of Magnitude & Laboratory Reference Benchmarks

Physical Phenomenon / Engineering ReferenceReference ValueConverted to Gallon (US)/minute
Standard water-saving residential bathroom showerhead water flow limit9 L/min2.377548 gal (US)/min
Standard domestic kitchen sink faucet aerator maximum flow rate6 L/min1.585032 gal (US)/min
Resting adult human pulmonary ventilation air inhalation flow rate6 L/min1.585032 gal (US)/min
Institutional Metrology & Standard Authority:

Formulas, conversion coefficients, and base definitions on this page strictly adhere to the ISO 80000-4:2019, ASME MFC-3M and the BIPM SI Brochure (9th Edition). Governed by Hydrodynamic Continuity Equation (Q = A · v̄) under ISO 80000 dimensional vector [L³ T⁻¹].

Multi-Variable Engineering Bridge Precision Fluid Continuity

Volumetric Flow & Fluid Continuity Bridge (GPM • CFM • m³/h • L/min • L/s • ft³/h)

Directly convert mass flow rate (ṁ) into volumetric flow (Q) across process fluids using the thermodynamic continuity equation ṁ = ρ × Q, bridging mass flow [M T⁻¹] and volumetric flow [L³ T⁻¹] via fluid density (ρ).

Q = ṁ / ρ
Live Calculated Bridge Equivalent:
1 L/min at Water (20°C / Standard Ambient) = 0.0002646 GPM
Equals 3.5378 × 10⁻⁵ CFM • 6.0108 × 10⁻⁵ m³/h • 0.001002 L/min
US Pump Standard
0.0002646
GPM
US Gallons per Minute
Air / Gas Flow
3.5378 × 10⁻⁵
CFM
Cubic Feet per Minute
Metric Standard
6.0108 × 10⁻⁵
m³/h
Cubic Meters per Hour
Hydraulics & Lab
0.001002
L/min
Liters per Minute
High Volume
1.6697 × 10⁻⁵
L/s
Liters per Second
Burners & Fuel
0.0021
ft³/h
Cubic Feet per Hour
  1. 1. Normalize Input to SI Base Unit (kg/s):
    ṁ = 1 L/min × 1.66666667 × 10⁻⁵ = 1.66666667 × 10⁻⁵ kg/s
  2. 2. Apply Engineering Parameter (ρ):
    Selected condition: Water (20°C / Standard Ambient) at ρ = 998.2 kg/m³
  3. 3. Execute Governing Physical Law in SI Units:
    Q = ṁ / ρ = (1.66666667 × 10⁻⁵) ÷ (998.2) = 1.669672 × 10⁻⁸ m³/s
  4. 4. Convert to Standard Engineering Units:
    • GPM: 1.669672 × 10⁻⁸ × 15850.3231 = 0.0002646 GPM (US Gallons per Minute) • CFM: 1.669672 × 10⁻⁸ × 2118.88 = 3.5378 × 10⁻⁵ CFM (Cubic Feet per Minute) • m³/h: 1.669672 × 10⁻⁸ × 3600 = 6.0108 × 10⁻⁵ m³/h (Cubic Meters per Hour) • L/min: 1.669672 × 10⁻⁸ × 60000 = 0.001002 L/min (Liters per Minute) • L/s: 1.669672 × 10⁻⁸ × 1000 = 1.6697 × 10⁻⁵ L/s (Liters per Second) • ft³/h: 1.669672 × 10⁻⁸ × 127132.8002 = 0.0021 ft³/h (Cubic Feet per Hour)
Explore Full Density Converter →
Engineering Substance / Operating Standard Parameter Value (kg/m³) Reference State / Condition Typical Industrial & Engineering Application
Water (20°C / Standard Ambient) 998.2 20°C (68°F), 1 atm Hydronic HVAC & cooling water (NIST)
Water (4°C / Maximum Density) 1000 4°C (39.2°F), 1 atm Pure metrology reference standard (SG = 1.0)
Water (100°C / Saturated Liquid) 958.4 100°C (212°F), 1 atm Boiler condensate returns & district hot water
Saturated Steam (100°C, 1 atm) 0.5977 100°C, 1.01325 bar Boiler steam piping & relief headers (IAPWS-97)
Air (Standard Ambient / NTP 20°C) 1.204 20°C (68°F), 101.325 kPa (ISO 5011) Compressor SCFM rating, blower sizing & HVAC duct air
Air at STP (0°C, 1 atm) 1.292 0°C (32°F), 101.325 kPa (IUPAC) Standard European gas metering & chemical plant feeds
Diesel Fuel (EN 590 / No. 2-D, 20°C) 832 20°C (68°F), ASTM D975 / EN 590 Engine fuel telemetry, BSFC dyno & generator consumption
Gasoline / Petrol (ASTM D4814, 15°C) 740 15°C (59°F), ASTM D4814 Automotive port & direct fuel injector calibrations
Natural Gas / Methane (STP: 0°C, 1 atm) 0.717 0°C, 1 atm (Pure CH₄ approximation) Gas turbine firing rate & burner pipeline supply
Engine Lubricating Oil (SAE 30, 20°C) 885 20°C, typical kinematic grade 100 cSt Engine lube circuits, turbo feed lines & cooling loops
Hydraulic Oil (ISO VG 46, 20°C) 870 20°C, mineral hydraulic fluid Hydraulic power packs, cylinder pump flows & servo valves
Embed
Need this Liter/minute to Gallon (US)/minute calculator on your website, lab portal, or research blog?
Free HTML Widget 100% Responsive Zero Cookie Tracking
Notice a calculation discrepancy, rounding error, or glitch?
Help us maintain 100% scientific precision and report any issues directly to engineering.

Frequently Asked Questions

There are exactly 0.26417205 gallons (us)/minute (gal (US)/min) in 1 liter/minute (L/min). To calculate larger amounts manually, simply multiply your total number of liters/minute by the conversion multiplier of 0.26417205.

The mathematical formula to convert liters/minute to gallons (us)/minute is: [value] * 0.26417205 = gallons (us)/minute. Rather than doing the math manually, you can use our high-precision online calculator to process this exact equation instantly without rounding errors.

To perform the reverse calculation from gallons (us)/minute back to liters/minute, you must divide your starting value by 0.26417205. Our bidirectional tool automatically computes this inverse equation the moment you type into the gallon (us)/minute input field.

1 Gallon (US)/minute is larger than 1 Liter/minute. Specifically, 1 Liter/minute equals 0.26417205 gallons (us)/minute, meaning 1 Gallon (US)/minute is 3.7854 times larger than 1 Liter/minute (a difference of 0.58 orders of magnitude). Expressing measurements in liters/minute requires a larger numerical value to represent the equivalent physical magnitude.

A typical standard water-saving residential bathroom showerhead water flow limit measures 9 L/min, which corresponds to 2.3775 Gallon Us Per Minute (Gallon (US)/minute).

There are exactly 0.264172 gal (US)/min in 1 L/min.

The specific volumetric flow conversion formula is V(gal (US)/min) = V(L/min) × 0.264172.

To convert US gallons back to metric liters, use the inverse formula: V(L/min) = V(gal (US)/min) × 3.78541.

This metric standardizes fluid transfer rates between the SI-accepted liter and the United States Customary gallon. It is heavily utilized in comparing US industrial pump outputs to international metrology standards.

Similar Categories