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Chus/hour/square foot to Foot Pounds/minute/square foot Converter (CHU/(h·ft²) to ft·lbf/(min·ft²))

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Live Conversion • ISO 80000-5:2019 Certified
1 CHU/hour/square foot = 23.34500129 Foot pound/minute/square foot
1 CHU/(h·ft²) = 23.345001 ft·lbf/(min·ft²) • 1 ft·lbf/(min·ft²) = 0.0428357 CHU/(h·ft²)
CHU/hour/square foot to Foot pound/minute/square foot: One CHU/hour/square foot is equal to 23.34500129 Foot Pounds/minute/square foot.
Certified Authority Value
23.34500129
ft·lbf/(min·ft²)
Exact: 1 ft·lbf/(min·ft²) ≡ 0.04283572263 CHU/(h·ft²)
CHU/(h·ft²)
CHU/(h·ft²)
ft·lbf/(min·ft²)
ft·lbf/(min·ft²) 23.34500129
Quick Values:
Conversion Formula
To convert CHU/hour/square foot to Foot pound/minute/square foot, multiply by 23.34500129
CHU/(h·ft²) × 23.34500129 = ft·lbf/(min·ft²)

Calculation: 1 CHU/(h·ft²) × 23.34500129 = 23.34500129 ft·lbf/(min·ft²)

Common CHU/hour/square foot to Foot pound/minute/square foot Calculations

Quick-lookup reference table showing calculated equivalents for standard increments between CHU/hour/square foot (CHU/(h·ft²)) and Foot pound/minute/square foot (ft·lbf/(min·ft²)).

Tap any row to calculate
CHU/hour/square foot to Foot pound/minute/square foot: Primary Direct Table (15 Steps)
CHU/hour/square foot to Foot pound/minute/square foot Conversion Reference Table
Conversion & Equivalent Value Scientific Notation
0.001 CHU/(h·ft²) 0.023345 ft·lbf/(min·ft²) 2.335 × 10⁻²
0.01 CHU/(h·ft²) 0.23345 ft·lbf/(min·ft²) 2.335 × 10⁻¹
0.1 CHU/(h·ft²) 2.3345 ft·lbf/(min·ft²) 2.335 × 10⁰
0.5 CHU/(h·ft²) 11.672501 ft·lbf/(min·ft²) 1.167 × 10¹
1 CHU/(h·ft²) 23.345001 ft·lbf/(min·ft²) 2.335 × 10¹
2 CHU/(h·ft²) 46.690003 ft·lbf/(min·ft²) 4.669 × 10¹
5 CHU/(h·ft²) 116.725006 ft·lbf/(min·ft²) 1.167 × 10²
10 CHU/(h·ft²) 233.450013 ft·lbf/(min·ft²) 2.335 × 10²
20 CHU/(h·ft²) 466.900026 ft·lbf/(min·ft²) 4.669 × 10²
25 CHU/(h·ft²) 583.625032 ft·lbf/(min·ft²) 5.836 × 10²
50 CHU/(h·ft²) 1167.250064 ft·lbf/(min·ft²) 1.167 × 10³
100 CHU/(h·ft²) 2334.500129 ft·lbf/(min·ft²) 2.335 × 10³
250 CHU/(h·ft²) 5836.250322 ft·lbf/(min·ft²) 5.836 × 10³
500 CHU/(h·ft²) 11672.500644 ft·lbf/(min·ft²) 1.167 × 10⁴
1000 CHU/(h·ft²) 23345.001289 ft·lbf/(min·ft²) 2.335 × 10⁴
Foot pound/minute/square foot to CHU/hour/square foot: Reciprocal Summary
Foot pound/minute/square foot to CHU/hour/square foot Conversion Reference Table
Reciprocal & Equivalent Value Scientific Notation
1 ft·lbf/(min·ft²) 0.0428357 CHU/(h·ft²) 4.284 × 10⁻²
5 ft·lbf/(min·ft²) 0.214179 CHU/(h·ft²) 2.142 × 10⁻¹
10 ft·lbf/(min·ft²) 0.428357 CHU/(h·ft²) 4.284 × 10⁻¹
50 ft·lbf/(min·ft²) 2.141786 CHU/(h·ft²) 2.142 × 10⁰
100 ft·lbf/(min·ft²) 4.283572 CHU/(h·ft²) 4.284 × 10⁰

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 CHU/hour/square foot (CHU/(h·ft²)) and Foot pound/minute/square foot (ft·lbf/(min·ft²)):

CHU/hour/square foot References:

  • British historical boiler combustion heat transfer flux 150 CHU/(h·ft²)

Foot pound/minute/square foot References:

  • Mechanical friction heating flux on brake drum friction lining 2500 ft·lbf/(min·ft²)
ISQ Dimension: [M T⁻³] Coherent SI Unit: watt per square meter (W/m²) Thermodynamics & Heat Transfer

How to Convert CHU/hour/square foot to Foot pound/minute/square foot

Converting CHU/hour/square foot (CHU/(h·ft²)) to Foot pound/minute/square foot (ft·lbf/(min·ft²)) is a core calculation in Heat Flux Density, which measures the rate of thermal energy transfer radiating or conducting through a unit area per second. 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 CHU/hour/square foot equals 23.345001 Foot pound/minute/square foot, while 1 ft·lbf/(min·ft²) equals 0.0428357 CHU/(h·ft²).

Direct Factor1 CHU/(h·ft²) = 23.345001 ft·lbf/(min·ft²)
Inverse Ratio1 ft·lbf/(min·ft²) = 0.0428357 CHU/(h·ft²)
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 (watt per square meter (W/m²)) 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 CHU/(h·ft²) = 5.678269 watt per square meter (W/m²)
2. Target SI Bridge (ktarget):1 ft·lbf/(min·ft²) = 0.243233 watt per square meter (W/m²)
Step-by-step substitution for CHU/hour/square foot → Foot pound/minute/square foot:V(ft·lbf/(min·ft²)) = V(CHU/(h·ft²)) × ( 5.678269 / 0.243233 ) = V(CHU/(h·ft²)) × 23.345001
Mathematical FormulaValue in Foot pound/minute/square foot = Value in CHU/hour/square foot × 23.34500129Direct computational formula applied for standard conversion.
Worked Example

Converting 75 CHU/(h·ft²) yields an exact output of 1750.875097 ft·lbf/(min·ft²) in Foot pound/minute/square foot. Under higher industrial throughput, 5000 CHU/(h·ft²) translates to 116725.006445 ft·lbf/(min·ft²).

Inverse check: 1 ft·lbf/(min·ft²) = 0.0428357 CHU/(h·ft²).

Understanding CHU/hour/square foot and Foot pound/minute/square foot

CHU/hour/square foot

CHU/(h·ft²)
Imperial / US

A CHU/hour/square foot (CHU/(h·ft²)) is an imperial and US customary unit for heat flux density.

Applications & Practical Context

In practical heat flux density terms, a British historical boiler combustion heat transfer flux equals 150 CHU/(h·ft²).

Physical Setup

A physical magnitude of 1 CHU/(h·ft²) corresponds to 5.678269 W/m² in standard SI measurement.

Conversion to SI Unit: watt per square meter (W/m²)
1 CHU/(h·ft²) = 5.678269 W/m²

Foot pound/minute/square foot

ft·lbf/(min·ft²)
Imperial / US

A Foot pound/minute/square foot (ft·lbf/(min·ft²)) is an imperial and US customary unit for heat flux density.

Applications & Practical Context

In practical heat flux density terms, a mechanical friction heating flux on brake drum friction lining equals 2500 ft·lbf/(min·ft²).

Physical Setup

A physical magnitude of 1 ft·lbf/(min·ft²) corresponds to 0.243233 W/m² in standard SI measurement.

Conversion to SI Unit: watt per square meter (W/m²)
1 ft·lbf/(min·ft²) = 0.243233 W/m²

Domain Metrology & Engineering Applications

Governing Law & Equation

Thermal Transmission Flux (q = Q̇ / A)

Measurement Instrumentation

Rigorously quantified in laboratory and field settings using Schmidt-Boelter heat flux gauges, differential thermopile foil transducers, and calibrated Gardon radiant gauges.

Primary Industry Sectors

Applied across rocket nozzle combustion chamber analysis, fire resistance testing (ASTM E119), furnace wall heat loss auditing, and hypersonic aerothermal design under international metrology standard ISO 80000-5:2019, ASME PTC 19.3.

Institutional Metrology & Standard Authority:

Formulas, conversion coefficients, and base definitions on this page strictly adhere to the ISO 80000-5:2019, ASME PTC 19.3 and the BIPM SI Brochure (9th Edition). Governed by Thermal Transmission Flux (q = Q̇ / A) under ISO 80000 dimensional vector [M T⁻³].

Multi-Variable Engineering Bridge Thermal Radiation & Power Dissipation

Heat Flux Density to Total Thermal Power Bridge (Watts • Kilowatts • Megawatts • BTU/h • Horsepower)

Calculate total continuous heat dissipation power P = q" × A across surface barriers and exchangers, bridging heat flux density [M T⁻³] with thermal power [M L² T⁻³].

P = q" × A
Vector: [W/m²] × [m²] → [W]
Live Calculated Bridge Equivalent:
1 CHU/(h·ft²) at Industrial Hydronic Radiator Panel (8 m²) = 45.4262 W
Equals 0.04543 kW • 4.542615 × 10⁻⁵ MW • 0.06092 hp
SI Power
45.4262
W
Watts
Grid / Utility
0.04543
kW
Kilowatts
Power Plant
4.542615 × 10⁻⁵
MW
Megawatts
Mechanical Rating
0.06092
hp
Horsepower (Mechanical)
Metric Horsepower
0.06176
PS
Metric Horsepower (PS)
HVAC Thermal Rating
155
BTU/h
BTU per Hour
  1. 1. Normalize Input to SI Base Unit (W/m²):
    q" = 1 CHU/(h·ft²) × 5.67826926 = 5.67826926 W/m²
  2. 2. Apply Engineering Parameter (A):
    Selected condition: Industrial Hydronic Radiator Panel (8 m²) at A = 8 m²
  3. 3. Execute Governing Physical Law in SI Units:
    P = q" × A = (5.67826926 W/m²) × (8 m²) = 45.426154 W
  4. 4. Convert to Standard Engineering Units:
    • W: 45.426154 × 1 = 45.4262 W (Watts) • kW: 45.426154 × 0.001 = 0.04543 kW (Kilowatts) • MW: 45.426154 × 1 × 10⁻⁶ = 4.542615 × 10⁻⁵ MW (Megawatts) • hp: 45.426154 × 0.001341 = 0.06092 hp (Horsepower (Mechanical)) • PS: 45.426154 × 0.00136 = 0.06176 PS (Metric Horsepower (PS)) • BTU/h: 45.426154 × 3.4121 = 155 BTU/h (BTU per Hour)
Explore Full Power Converter →
Engineering Substance / Operating Standard Parameter Value (m²) Reference State / Condition Typical Industrial & Engineering Application
Residential Window Glazing (4 m²) 4 4.0 m² Double-pane exterior window glass aperture
Industrial Hydronic Radiator Panel (8 m²) 8 8.0 m² Convective space heating radiator surface
Shell & Tube Heat Exchanger (50 m²) 50 50.0 m² Industrial process fluid cooling bundle
Power Boiler Waterwall (200 m²) 200 200.0 m² Thermal power plant steam generator wall
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Frequently Asked Questions

There are exactly 23.34500129 foot pounds/minute/square foot (ft·lbf/(min·ft²)) in 1 chu/hour/square foot (CHU/(h·ft²)). To calculate larger amounts manually, simply multiply your total number of chus/hour/square foot by the conversion multiplier of 23.34500129.

The mathematical formula to convert chus/hour/square foot to foot pounds/minute/square foot is: [value] * 23.34500129 = foot pounds/minute/square foot. 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 foot pounds/minute/square foot back to chus/hour/square foot, you must divide your starting value by 23.34500129. Our bidirectional tool automatically computes this inverse equation the moment you type into the foot pound/minute/square foot input field.

1 CHU/hour/square foot is larger than 1 Foot pound/minute/square foot. Specifically, 1 CHU/hour/square foot equals exactly 23.34500129 foot pounds/minute/square foot, making it 23.345 times larger (a difference of 1.37 orders of magnitude). Therefore, quantities expressed in foot pounds/minute/square foot require a larger numerical value to represent the same physical amount.

Under standard international measurement guidelines, 1 CHU/hour/square foot converts to 23.34500129 foot pounds/minute/square foot. Precise numerical conversion factors ensure consistency across laboratory, engineering, and field data.