Pound Force Seconds/sq. inch to Pounds/foot/hour Converter (reyn to lb/(ft·h))

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Live Conversion • ISO 80000-4:2019 Certified

1 Pound-force second/sq. inch = 1.66790261 × 10⁷ Pound/foot/hour

1 reyn = 1.667903 × 10⁷ lb/(ft·h) • 1 lb/(ft·h) = 5.995554 × 10⁻⁸ reyn

Decimals:

Certified Authority Value

16679026.06245339

lb/(ft·h)

From / Input

reyn

Swap to Pound/foot/hour to Pound-force second/sq. inch

To / Result

lb/(ft·h)

Quick Values:

Conversion Formula

To convert Pound-force second/sq. inch to Pound/foot/hour, multiply by 1.66790261 × 10⁷

reyn × 1.66790261 × 10⁷ = lb/(ft·h)

Calculation: 1 reyn × 1.66790261 × 10⁷ = 1.66790261 × 10⁷ lb/(ft·h)

Common Pound-force second/sq. inch to Pound/foot/hour Calculations

Quick-lookup reference table showing calculated equivalents for standard increments between Pound-force second/sq. inch (reyn) and Pound/foot/hour (lb/(ft·h)).

Tap any row to calculate

Pound-force second/sq. inch to Pound/foot/hour: Primary Direct Table (15 Steps)

Rule: 1 Pound-force second/sq. inch is equal to 1.667903 × 10⁷ lb/(ft·h) (Pound/foot/hour)

Pound-force second/sq. inch to Pound/foot/hour Conversion Reference Table
Conversion & Equivalent Value	Scientific Notation
0.001 reyn 16679.026062 lb/(ft·h)	1.668 × 10⁴
0.01 reyn 166790.260625 lb/(ft·h)	1.668 × 10⁵
0.1 reyn 1667902.606245 lb/(ft·h)	1.668 × 10⁶
0.5 reyn 8339513.031227 lb/(ft·h)	8.34 × 10⁶
1 reyn 1.667903 × 10⁷ lb/(ft·h)	1.668 × 10⁷
2 reyn 3.335805 × 10⁷ lb/(ft·h)	3.336 × 10⁷
5 reyn 8.339513 × 10⁷ lb/(ft·h)	8.34 × 10⁷
10 reyn 1.667903 × 10⁸ lb/(ft·h)	1.668 × 10⁸
20 reyn 3.335805 × 10⁸ lb/(ft·h)	3.336 × 10⁸
25 reyn 4.169757 × 10⁸ lb/(ft·h)	4.17 × 10⁸
50 reyn 8.339513 × 10⁸ lb/(ft·h)	8.34 × 10⁸
100 reyn 1.667903 × 10⁹ lb/(ft·h)	1.668 × 10⁹
250 reyn 4.169757 × 10⁹ lb/(ft·h)	4.17 × 10⁹
500 reyn 8.339513 × 10⁹ lb/(ft·h)	8.34 × 10⁹
1000 reyn 1.667903 × 10¹⁰ lb/(ft·h)	1.668 × 10¹⁰

Pound/foot/hour to Pound-force second/sq. inch: Reciprocal Summary

Rule: 1 Pound/foot/hour is equal to 5.995554 × 10⁻⁸ reyn (Pound-force second/sq. inch)

Pound/foot/hour to Pound-force second/sq. inch Conversion Reference Table
Reciprocal & Equivalent Value	Scientific Notation
1 lb/(ft·h) 5.995554 × 10⁻⁸ reyn	5.996 × 10⁻⁸
5 lb/(ft·h) 2.997777 × 10⁻⁷ reyn	2.998 × 10⁻⁷
10 lb/(ft·h) 5.995554 × 10⁻⁷ reyn	5.996 × 10⁻⁷
50 lb/(ft·h) 2.997777 × 10⁻⁶ reyn	2.998 × 10⁻⁶
100 lb/(ft·h) 5.995554 × 10⁻⁶ reyn	5.996 × 10⁻⁶

View Complete 15-Row Pound/foot/hour to Pound-force second/sq. inch 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 Pound-force second/sq. inch (reyn) and Pound/foot/hour (lb/(ft·h)):

Pound-force second/sq. inch References:

Pure drinking water dynamic viscosity at 20 degrees Celsius 0 reyn
Culinary extra virgin olive oil dynamic viscosity at room temperature 1.2E-5 reyn
Automotive engine motor oil SAE 30 dynamic viscosity at 20°C 2.9E-5 reyn
Pure natural clover bee honey dynamic viscosity at room temperature 0.00145 reyn

Pound/foot/hour References:

Chemical engineering pipe fluid friction calculations for oil 200 lb/(ft·h)

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

ISQ Dimension: [M L⁻¹ T⁻¹] Coherent SI Unit: pascal second (Pa·s) Fluid Dynamics & Rheology

How to Convert Pound-force second/sq. inch to Pound/foot/hour

Converting Pound-force second/sq. inch (reyn) to Pound/foot/hour (lb/(ft·h)) is a core calculation in Dynamic Viscosity, which quantifies a fluid's internal tangential resistance to shear deformation and laminar flow. 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 Pound-force second/sq. inch equals 1.667903 × 10⁷ Pound/foot/hour, while 1 lb/(ft·h) equals 5.995554 × 10⁻⁸ reyn.

Direct Factor1 reyn = 1.667903 × 10⁷ lb/(ft·h)

Inverse Ratio1 lb/(ft·h) = 5.995554 × 10⁻⁸ reyn

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 (pascal second (Pa·s)) without arbitrary rounding:

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 (k_source):1 reyn = 6894.757 pascal second (Pa·s)

2. Target SI Bridge (k_target):1 lb/(ft·h) = 0.000413379 pascal second (Pa·s)

Step-by-step substitution for Pound-force second/sq. inch → Pound/foot/hour:V(lb/(ft·h)) = V(reyn) × ( 6894.757 / 0.000413379 ) = V(reyn) × 1.667903 × 10⁷

Mathematical FormulaValue in Pound/foot/hour = Value in Pound-force second/sq. inch × 1.66790261 × 10⁷Direct computational formula applied for standard conversion.

Worked Example

For an engineering input of 15 reyn, applying the conversion factor yields exactly 2.501854 × 10⁸ lb/(ft·h). At larger operational scale, 100 Pound-force second/sq. inch corresponds to 1.667903 × 10⁹ lb/(ft·h).

Inverse check: 1 lb/(ft·h) = 5.995554 × 10⁻⁸ reyn.

Understanding Pound-force second/sq. inch and Pound/foot/hour

Domain Metrology & Engineering Applications

Governing Law & Equation

Newton's Law of Viscosity (τ = μ · du/dy)

Measurement Instrumentation

Rigorously quantified in laboratory and field settings using rotational cone-and-plate rheometers, falling ball Höppler viscometers, and vibrating wire viscometers.

Primary Industry Sectors

Applied across lubricating oil tribology (SAE engine grades), polymer extrusion, paint and coating formulation, and pharmaceutical liquid processing under international metrology standard ISO 80000-4:2019, ASTM D445.

Institutional Metrology & Standard Authority:

Formulas, conversion coefficients, and base definitions on this page strictly adhere to the ISO 80000-4:2019, ASTM D445 and the BIPM SI Brochure (9th Edition). Governed by Newton's Law of Viscosity (τ = μ · du/dy) under ISO 80000 dimensional vector [M L⁻¹ T⁻¹].

Multi-Variable Engineering Bridge Rheology & Fluid Boundary Layers

Dynamic to Kinematic Viscosity Bridge (m²/s • cSt • Stokes • ft²/s • in²/s • mm²/s)

Calculate fluid kinematic momentum diffusivity ν = μ / ρ across process liquids, bridging dynamic viscosity [M L⁻¹ T⁻¹] and kinematic viscosity [L² T⁻¹] via metrological density (ρ).

Input Dynamic (Absolute) Viscosity (μ): reyn

Select Fluid Density: 885 kg/m³

Governing Law: ν = μ / ρ

Vector: [Pa·s] ÷ [kg/m³] → [m²/s]

Live Calculated Bridge Equivalent:

1 reyn at Engine Lubricating Oil (SAE 30, 20°C) = 7.790686 m²/s

Equals 7790685.8757 cSt • 77906.8588 St • 83.8582 ft²/s

SI Kinematic Viscosity

7.790686

m²/s

Square Meters per Second

Lubricant ISO VG

7790685.8757

cSt

Centistokes

CGS Viscosity

77906.8588

Stokes

US Customary

83.8582

ft²/s

Square Feet per Second

Aero Hydraulics

12075.59

in²/s

Square Inches per Second

ISO Viscosity

7790685.8757

mm²/s

Square Millimeters per Second

Step-by-Step Numerical Derivation Proof View Derivation

1. Normalize Input to SI Base Unit (Pa·s):
μ = 1 reyn × 6894.757 = 6894.757 Pa·s
2. Apply Engineering Parameter (ρ):
Selected condition: Engine Lubricating Oil (SAE 30, 20°C) at ρ = 885 kg/m³
3. Execute Governing Physical Law in SI Units:
ν = μ / ρ = (6894.757 Pa·s) ÷ (885 kg/m³) = 7.790686 m²/s
4. Convert to Standard Engineering Units:
• m²/s: 7.790686 × 1 = 7.790686 m²/s (Square Meters per Second) • cSt: 7.790686 × 1000000 = 7790685.8757 cSt (Centistokes) • St: 7.790686 × 10000 = 77906.8588 St (Stokes) • ft²/s: 7.790686 × 10.7639 = 83.8582 ft²/s (Square Feet per Second) • in²/s: 7.790686 × 1550.0031 = 12075.59 in²/s (Square Inches per Second) • mm²/s: 7.790686 × 1000000 = 7790685.8757 mm²/s (Square Millimeters 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	Hydronic HVAC & cooling water (NIST)
Engine Lubricating Oil (SAE 30, 20°C)	`885`	885.0 kg/m³	Crankcase lubrication & turbo bearing feeds
Hydraulic Oil (ISO VG 46, 20°C)	`870`	870.0 kg/m³	Industrial hydraulic systems & servo controls
Heavy Fuel Oil (Bunker C / HFO, 50°C)	`920`	920.0 kg/m³	Marine diesel engines & power plant burners
Pure Glycerol (100% C₃H₈O₃, 20°C)	`1260`	1,260.0 kg/m³	High-viscosity metrology reference fluid

Frequently Asked Questions

There are exactly 1.66790261 × 10⁷ pounds/foot/hour (lb/(ft·h)) in 1 pound-force second/sq. inch (reyn). To calculate larger amounts manually, simply multiply your total number of pound force seconds/sq. inch by the conversion multiplier of 1.66790261 × 10⁷.

The mathematical formula to convert pound force seconds/sq. inch to pounds/foot/hour is: [value] * 1.66790261 × 10⁷ = pounds/foot/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 pounds/foot/hour back to pound force seconds/sq. inch, you must divide your starting value by 1.66790261 × 10⁷. Our bidirectional tool automatically computes this inverse equation the moment you type into the pound/foot/hour input field.

1 Pound-force second/sq. inch is larger than 1 Pound/foot/hour. Specifically, 1 Pound-force second/sq. inch equals exactly 1.66790261 × 10⁷ pounds/foot/hour, making it 1.6679 × 10⁷ times larger (a difference of 7.22 orders of magnitude). Therefore, quantities expressed in pounds/foot/hour require a larger numerical value to represent the same physical amount.

Under standard international measurement guidelines, 1 Pound-force second/sq. inch converts to 1.66790261 × 10⁷ pounds/foot/hour. Precise numerical conversion factors ensure consistency across laboratory, engineering, and field data.