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

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Live Conversion • ISO 80000-4:2019 Certified
1 Liter/second = 15.85032314 Gallon (US)/minute
1 L/s = 15.850323 gal (US)/min • 1 gal (US)/min = 0.0630902 L/s
Liter/second to Gallon (US)/minute: One Liter/second is equal to 15.85032314 Gallons (us)/minute.
Certified Authority Value
15.85032314
gal (US)/min
Exact: 1 gal (US)/min ≡ 0.0630901964 L/s
L/s
L/s
Swap to Gallon (US)/minute to Liter/second
gal (US)/min
gal (US)/min 15.85032314
Quick Values:
1 L/s 5 L/s 10 L/s 25 L/s 50 L/s 100 L/s 250 L/s 500 L/s 1,000 L/s
Conversion Formula
To convert Liter/second to Gallon (US)/minute, multiply by 15.85032314
L/s × 15.85032314 = gal (US)/min

Calculation: 1 L/s × 15.85032314 = 15.85032314 gal (US)/min

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

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

Tap any row to calculate
Gallon (US)/minute to Liter/second: Reciprocal Summary
Gallon (US)/minute to Liter/second Conversion Reference Table
Reciprocal & Equivalent Value Scientific Notation
1 gal (US)/min is equal to 0.0630902 L/s (Liter/second) 6.309 × 10⁻²
5 gal (US)/min is equal to 0.315451 L/s (Liter/second) 3.155 × 10⁻¹
10 gal (US)/min is equal to 0.630902 L/s (Liter/second) 6.309 × 10⁻¹
50 gal (US)/min is equal to 3.15451 L/s (Liter/second) 3.155 × 10⁰
100 gal (US)/min is equal to 6.30902 L/s (Liter/second) 6.309 × 10⁰
View Complete 15-Row Gallon (US)/minute to Liter/second Table

Real-World Context & Everyday Benchmarks

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

Liter/second References:

  • Standard residential outdoor garden watering hose discharge rate 0.5 L/s
  • Municipal fire engine attack hose line water discharge delivery rate 15 L/s

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/second to Gallon (US)/minute

Converting Liter/second (L/s) 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/second equals 15.850323 Gallon (US)/minute, while 1 gal (US)/min equals 0.0630902 L/s.

Direct Factor1 L/s = 15.850323 gal (US)/min
Inverse Ratio1 gal (US)/min = 0.0630902 L/s
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/s = 0.001 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/second → Gallon (US)/minute:V(gal (US)/min) = V(L/s) × ( 0.001 / 6.30902 × 10⁻⁵ ) = V(L/s) × 15.850323
Mathematical FormulaValue in Gallon (US)/minute = Value in Liter/second × 15.85032314Direct computational formula applied for standard conversion.
Worked Example

Converting 250 L/s yields an exact output of 3962.580785 gal (US)/min in Gallon (US)/minute. Under higher industrial throughput, 10000 L/s translates to 158503.231415 gal (US)/min.

Inverse check: 1 gal (US)/min = 0.0630902 L/s.

Understanding Liter/second and Gallon (US)/minute

Liter/second

L/s
Standard Unit

A Liter/second (L/s) is a recognized unit for volumetric flow rate.

Applications & Practical Context

In practical flow terms, a standard residential outdoor garden watering hose discharge rate equals 0.5 L/s, a municipal fire engine attack hose line water discharge delivery rate equals 15 L/s.

Physical Setup

A physical magnitude of 1 L/s corresponds to 0.001 m³/s in standard SI measurement.

Conversion to SI Unit: cubic meter per second (m³/s)
1 L/s = 0.001 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 residential outdoor garden watering hose discharge rate0.5 L/s7.925162 gal (US)/min
Municipal fire engine attack hose line water discharge delivery rate15 L/s237.754847 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/s at Water (20°C / Standard Ambient) = 0.01588 GPM
Equals 0.002123 CFM • 0.003606 m³/h • 0.06011 L/min
US Pump Standard
0.01588
GPM
US Gallons per Minute
Air / Gas Flow
0.002123
CFM
Cubic Feet per Minute
Metric Standard
0.003606
m³/h
Cubic Meters per Hour
Hydraulics & Lab
0.06011
L/min
Liters per Minute
High Volume
0.001002
L/s
Liters per Second
Burners & Fuel
0.13
ft³/h
Cubic Feet per Hour
  1. 1. Normalize Input to SI Base Unit (kg/s):
    ṁ = 1 L/s × 0.001 = 0.001 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 = (0.001) ÷ (998.2) = 1.001803 × 10⁻⁶ m³/s
  4. 4. Convert to Standard Engineering Units:
    • GPM: 1.001803 × 10⁻⁶ × 15850.3231 = 0.01588 GPM (US Gallons per Minute) • CFM: 1.001803 × 10⁻⁶ × 2118.88 = 0.002123 CFM (Cubic Feet per Minute) • m³/h: 1.001803 × 10⁻⁶ × 3600 = 0.003606 m³/h (Cubic Meters per Hour) • L/min: 1.001803 × 10⁻⁶ × 60000 = 0.06011 L/min (Liters per Minute) • L/s: 1.001803 × 10⁻⁶ × 1000 = 0.001002 L/s (Liters per Second) • ft³/h: 1.001803 × 10⁻⁶ × 127132.8002 = 0.13 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
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Frequently Asked Questions

There are exactly 15.85032314 gallons (us)/minute (gal (US)/min) in 1 liter/second (L/s). To calculate larger amounts manually, simply multiply your total number of liters/second by the conversion multiplier of 15.85032314.

The mathematical formula to convert liters/second to gallons (us)/minute is: [value] * 15.85032314 = 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/second, you must divide your starting value by 15.85032314. Our bidirectional tool automatically computes this inverse equation the moment you type into the gallon (us)/minute input field.

1 Liter/second is larger than 1 Gallon (US)/minute. Specifically, 1 Liter/second equals exactly 15.85032314 gallons (us)/minute, making it 15.8503 times larger (a difference of 1.20 orders of magnitude). Therefore, quantities expressed in gallons (us)/minute require a larger numerical value to represent the same physical amount.

A typical standard residential outdoor garden watering hose discharge rate measures 0.5 L/s, which corresponds to 7.9252 Gallon Us Per Minute (Gallon (US)/minute).

There are exactly 15.8503 gal (US)/min in 1 L/s.

The specific volumetric flow conversion formula is V(gal (US)/min) = V(L/s) × 15.8503.

To convert back to the SI base rate, use the inverse formula: V(L/s) = V(gal (US)/min) × 0.0630902.

This factor accurately translates high-velocity metric system discharges into standard US Customary per-minute fluid ratings used explicitly in commercial liquid conveyance and municipal pumping infrastructure.

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