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Gallons (us)/second to Liters/hour Converter (gal (US)/s to L/h)

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Live Conversion • ISO 80000-4:2019 Certified
1 Gallon (US)/second = 13627.4824224 Liter/hour
1 gal (US)/s = 13627.482422 L/h • 1 L/h = 7.338113 × 10⁻⁵ gal (US)/s
Gallon (US)/second to Liter/hour: One Gallon (US)/second is equal to 13627.4824224 Liters/hour.
Certified Authority Value
13627.48242240
L/h
Exact: 1 L/h ≡ 7.3381125655 × 10⁻⁵ gal (US)/s
gal (US)/s
gal (US)/s
Swap to Liter/hour to Gallon (US)/second
Swap to Liter/hour to Gallon (US)/second
L/h
L/h 13627.4824224
Quick Values:
Conversion Formula
To convert Gallon (US)/second to Liter/hour, multiply by 13627.4824224
gal (US)/s × 13627.4824224 = L/h

Calculation: 1 gal (US)/s × 13627.4824224 = 13627.4824224 L/h

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

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

Tap any row to calculate
Gallon (US)/second to Liter/hour: Primary Direct Table (15 Steps)
Gallon (US)/second to Liter/hour Conversion Reference Table
Conversion & Equivalent Value Scientific Notation
0.001 gal (US)/s 13.627482 L/h 1.363 × 10¹
0.01 gal (US)/s 136.274824 L/h 1.363 × 10²
0.1 gal (US)/s 1362.748242 L/h 1.363 × 10³
0.5 gal (US)/s 6813.741211 L/h 6.814 × 10³
1 gal (US)/s 13627.482422 L/h 1.363 × 10⁴
2 gal (US)/s 27254.964845 L/h 2.725 × 10⁴
5 gal (US)/s 68137.412112 L/h 6.814 × 10⁴
10 gal (US)/s 136274.824224 L/h 1.363 × 10⁵
20 gal (US)/s 272549.648448 L/h 2.725 × 10⁵
25 gal (US)/s 340687.06056 L/h 3.407 × 10⁵
50 gal (US)/s 681374.12112 L/h 6.814 × 10⁵
100 gal (US)/s 1362748.24224 L/h 1.363 × 10⁶
250 gal (US)/s 3406870.6056 L/h 3.407 × 10⁶
500 gal (US)/s 6813741.2112 L/h 6.814 × 10⁶
1000 gal (US)/s 1.362748 × 10⁷ L/h 1.363 × 10⁷
Liter/hour to Gallon (US)/second: Reciprocal Summary
Liter/hour to Gallon (US)/second Conversion Reference Table
Reciprocal & Equivalent Value Scientific Notation
1 L/h 7.338113 × 10⁻⁵ gal (US)/s 7.338 × 10⁻⁵
5 L/h 0.000366906 gal (US)/s 3.669 × 10⁻⁴
10 L/h 0.000733811 gal (US)/s 7.338 × 10⁻⁴
50 L/h 0.00366906 gal (US)/s 3.669 × 10⁻³
100 L/h 0.00733811 gal (US)/s 7.338 × 10⁻³
View Complete 15-Row Liter/hour to Gallon (US)/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 Gallon (US)/second (gal (US)/s) and Liter/hour (L/h):

Gallon (US)/second References:

  • Municipal fire department pumper truck deluge deck master monitor water stream (20 gps) 20 gal/s

Liter/hour References:

  • Agricultural drip irrigation emitter delivery rate for vineyard grapevines 4 L/h
  • Residential whole-home evaporative central furnace humidifier water feed 3 L/h

Tap any benchmark above to automatically calculate its exact equivalent in Liter/hour.

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

How to Convert Gallon (US)/second to Liter/hour

Converting Gallon (US)/second (gal (US)/s) to Liter/hour (L/h) 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 Gallon (US)/second equals 13627.482422 Liter/hour, while 1 L/h equals 7.338113 × 10⁻⁵ gal (US)/s.

Direct Factor1 gal (US)/s = 13627.482422 L/h
Inverse Ratio1 L/h = 7.338113 × 10⁻⁵ gal (US)/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 gal (US)/s = 0.00378541 cubic meter per second (m³/s)
2. Target SI Bridge (ktarget):1 L/h = 2.777778 × 10⁻⁷ cubic meter per second (m³/s)
Step-by-step substitution for Gallon (US)/second → Liter/hour:V(L/h) = V(gal (US)/s) × ( 0.00378541 / 2.777778 × 10⁻⁷ ) = V(gal (US)/s) × 13627.482422
Mathematical FormulaValue in Liter/hour = Value in Gallon (US)/second × 13627.4824224Direct computational formula applied for standard conversion.
Worked Example

Evaluating an input of 12 Gallon (US)/second (gal (US)/s) produces 163529.789069 Liter/hour (L/h). In heavy-duty utility and industrial workloads, 5000 gal (US)/s equals 6.813741 × 10⁷ L/h.

Inverse check: 1 L/h = 7.338113 × 10⁻⁵ gal (US)/s.

Understanding Gallon (US)/second and Liter/hour

Gallon (US)/second

gal (US)/s
Imperial / US

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

Applications & Practical Context

In practical flow terms, a municipal fire department pumper truck deluge deck master monitor water stream (20 gps) equals 20 gal/s.

Physical Setup

A physical magnitude of 1 gal (US)/s corresponds to 0.00378541 m³/s in standard SI measurement.

Conversion to SI Unit: cubic meter per second (m³/s)
1 gal (US)/s = 0.00378541 m³/s

Liter/hour

L/h
Standard Unit

A Liter/hour (L/h) is a recognized unit for volumetric flow rate.

Applications & Practical Context

In practical flow terms, a agricultural drip irrigation emitter delivery rate for vineyard grapevines equals 4 L/h, a residential whole-home evaporative central furnace humidifier water feed equals 3 L/h.

Physical Setup

A physical magnitude of 1 L/h corresponds to 2.777778 × 10⁻⁷ m³/s in standard SI measurement.

Conversion to SI Unit: cubic meter per second (m³/s)
1 L/h = 2.777778 × 10⁻⁷ 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 Liter/hour
Municipal fire department pumper truck deluge deck master monitor water stream (20 gps)20 gal/s272549.648448 L/h
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 Fluid Continuity & Mass Flux

Volumetric to Mass Flow Continuity Bridge (kg/s • kg/h • lb/s • lb/h • t/h • g/s)

Convert volumetric flow rate (Q) directly into physical mass flow rate (ṁ) across process fluids using the continuity relation ṁ = ρ × Q, bridging volume flow [L³ T⁻¹] and mass flow [M T⁻¹] via density (ρ).

ṁ = ρ × Q
Vector: [m³/s] × [kg/m³] → [kg/s]
Live Calculated Bridge Equivalent:
1 gal (US)/s at Water (20°C / Standard Ambient) = 3.7786 kg/s
Equals 13602.953 kg/h • 8.3304 lb/s • 29989.38 lb/h
SI Mass Flow
3.7786
kg/s
Kilograms per Second
Industrial Process
13602.953
kg/h
Kilograms per Hour
US Mass Flow
8.3304
lb/s
Pounds per Second
Boiler / Turbine Rating
29989.38
lb/h
Pounds per Hour
Heavy Plant Header
13.603
t/h
Metric Tons per Hour
Chemical / Laboratory
3778.598
g/s
Grams per Second
  1. 1. Normalize Input to SI Base Unit (m³/s):
    Q = 1 gal (US)/s × 0.00378541 = 0.00378541 m³/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:
    ṁ = ρ × Q = (0.00378541 m³/s) × (998.2 kg/m³) = 3.778598 kg/s
  4. 4. Convert to Standard Engineering Units:
    • kg/s: 3.778598 × 1 = 3.7786 kg/s (Kilograms per Second) • kg/h: 3.778598 × 3600 = 13602.953 kg/h (Kilograms per Hour) • lb/s: 3.778598 × 2.2046 = 8.3304 lb/s (Pounds per Second) • lb/h: 3.778598 × 7936.6414 = 29989.38 lb/h (Pounds per Hour) • t/h: 3.778598 × 3.6 = 13.603 t/h (Metric Tons per Hour) • g/s: 3.778598 × 1000 = 3778.598 g/s (Grams per Second)
Explore Full Density Converter →
Engineering Substance / Operating Standard Parameter Value (kg/m³) Reference State / Condition Typical Industrial & Engineering Application
Water (20°C / Standard Ambient) 998.2 998.2 kg/m³ HVAC hydronic & cooling water
Diesel Fuel (EN 590 / 20°C) 832 832.0 kg/m³ Generator & marine diesel consumption
Gasoline / Petrol (15°C) 740 740.0 kg/m³ Automotive fuel injection lines
Hydraulic Fluid (ISO VG 46) 870 870.0 kg/m³ Hydraulic power pack pumps
Air (Standard Ambient / NTP 20°C) 1.204 1.204 kg/m³ HVAC ductwork & compressor air
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Frequently Asked Questions

There are exactly 13627.4824224 liters/hour (L/h) in 1 gallon (us)/second (gal (US)/s). To calculate larger amounts manually, simply multiply your total number of gallons (us)/second by the conversion multiplier of 13627.4824224.

The mathematical formula to convert gallons (us)/second to liters/hour is: [value] * 13627.4824224 = liters/hour. 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 liters/hour back to gallons (us)/second, you must divide your starting value by 13627.4824224. Our bidirectional tool automatically computes this inverse equation the moment you type into the liter/hour input field.

1 Gallon (US)/second is larger than 1 Liter/hour. Specifically, 1 Gallon (US)/second equals exactly 13627.4824224 liters/hour, making it 13627.4824 times larger (a difference of 4.13 orders of magnitude). Therefore, quantities expressed in liters/hour require a larger numerical value to represent the same physical amount.

A typical municipal fire department pumper truck deluge deck master monitor water stream (20 gps) measures 20 gal/s, which corresponds to 272549.6484 Liter Per Hour (Liter/hour).

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