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Horsepowers/square foot to Chus/hour/square foot Converter (hp/ft² to CHU/(h·ft²))

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Live Conversion • ISO 80000-5:2019 Certified
1 Horsepower/square foot = 1413.57273545 CHU/hour/square foot
1 hp/ft² = 1413.572735 CHU/(h·ft²) • 1 CHU/(h·ft²) = 0.000707427 hp/ft²
Horsepower/square foot to CHU/hour/square foot: One Horsepower/square foot is equal to 1413.57273545 Chus/hour/square foot.
Certified Authority Value
1413.57273545
CHU/(h·ft²)
Exact: 1 CHU/(h·ft²) ≡ 0.0007074273399 hp/ft²
hp/ft²
hp/ft²
Swap to CHU/hour/square foot to Horsepower/square foot
Swap to CHU/hour/square foot to Horsepower/square foot
CHU/(h·ft²)
CHU/(h·ft²) 1413.57273545
Quick Values:
Conversion Formula
To convert Horsepower/square foot to CHU/hour/square foot, multiply by 1413.57273545
hp/ft² × 1413.57273545 = CHU/(h·ft²)

Calculation: 1 hp/ft² × 1413.57273545 = 1413.57273545 CHU/(h·ft²)

Common Horsepower/square foot to CHU/hour/square foot Calculations

Quick-lookup reference table showing calculated equivalents for standard increments between Horsepower/square foot (hp/ft²) and CHU/hour/square foot (CHU/(h·ft²)).

Tap any row to calculate
Horsepower/square foot to CHU/hour/square foot: Primary Direct Table (15 Steps)
Horsepower/square foot to CHU/hour/square foot Conversion Reference Table
Conversion & Equivalent Value Scientific Notation
0.001 hp/ft² 1.413573 CHU/(h·ft²) 1.414 × 10⁰
0.01 hp/ft² 14.135727 CHU/(h·ft²) 1.414 × 10¹
0.1 hp/ft² 141.357274 CHU/(h·ft²) 1.414 × 10²
0.5 hp/ft² 706.786368 CHU/(h·ft²) 7.068 × 10²
1 hp/ft² 1413.572735 CHU/(h·ft²) 1.414 × 10³
2 hp/ft² 2827.145471 CHU/(h·ft²) 2.827 × 10³
5 hp/ft² 7067.863677 CHU/(h·ft²) 7.068 × 10³
10 hp/ft² 14135.727354 CHU/(h·ft²) 1.414 × 10⁴
20 hp/ft² 28271.454709 CHU/(h·ft²) 2.827 × 10⁴
25 hp/ft² 35339.318386 CHU/(h·ft²) 3.534 × 10⁴
50 hp/ft² 70678.636772 CHU/(h·ft²) 7.068 × 10⁴
100 hp/ft² 141357.273545 CHU/(h·ft²) 1.414 × 10⁵
250 hp/ft² 353393.183862 CHU/(h·ft²) 3.534 × 10⁵
500 hp/ft² 706786.367725 CHU/(h·ft²) 7.068 × 10⁵
1000 hp/ft² 1413572.735449 CHU/(h·ft²) 1.414 × 10⁶
CHU/hour/square foot to Horsepower/square foot: Reciprocal Summary
CHU/hour/square foot to Horsepower/square foot Conversion Reference Table
Reciprocal & Equivalent Value Scientific Notation
1 CHU/(h·ft²) 0.000707427 hp/ft² 7.074 × 10⁻⁴
5 CHU/(h·ft²) 0.00353714 hp/ft² 3.537 × 10⁻³
10 CHU/(h·ft²) 0.00707427 hp/ft² 7.074 × 10⁻³
50 CHU/(h·ft²) 0.0353714 hp/ft² 3.537 × 10⁻²
100 CHU/(h·ft²) 0.0707427 hp/ft² 7.074 × 10⁻²
View Complete 15-Row CHU/hour/square foot to Horsepower/square foot 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 Horsepower/square foot (hp/ft²) and CHU/hour/square foot (CHU/(h·ft²)):

Horsepower/square foot References:

  • Liquid rocket combustion chamber regeneratively cooled throat 15 hp/ft²

CHU/hour/square foot References:

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

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

ISQ Dimension: [M T⁻³] Coherent SI Unit: watt per square meter (W/m²) Thermodynamics & Heat Transfer

How to Convert Horsepower/square foot to CHU/hour/square foot

Converting Horsepower/square foot (hp/ft²) to CHU/hour/square foot (CHU/(h·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 Horsepower/square foot equals 1413.572735 CHU/hour/square foot, while 1 CHU/(h·ft²) equals 0.000707427 hp/ft².

Direct Factor1 hp/ft² = 1413.572735 CHU/(h·ft²)
Inverse Ratio1 CHU/(h·ft²) = 0.000707427 hp/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 hp/ft² = 8026.646615 watt per square meter (W/m²)
2. Target SI Bridge (ktarget):1 CHU/(h·ft²) = 5.678269 watt per square meter (W/m²)
Step-by-step substitution for Horsepower/square foot → CHU/hour/square foot:V(CHU/(h·ft²)) = V(hp/ft²) × ( 8026.646615 / 5.678269 ) = V(hp/ft²) × 1413.572735
Mathematical FormulaValue in CHU/hour/square foot = Value in Horsepower/square foot × 1413.57273545Direct computational formula applied for standard conversion.
Worked Example

Converting 75 hp/ft² yields an exact output of 106017.955159 CHU/(h·ft²) in CHU/hour/square foot. Under higher industrial throughput, 5000 hp/ft² translates to 7067863.677246 CHU/(h·ft²).

Inverse check: 1 CHU/(h·ft²) = 0.000707427 hp/ft².

Understanding Horsepower/square foot and CHU/hour/square foot

Horsepower/square foot

hp/ft²
Imperial / US

A Horsepower/square foot (hp/ft²) is an imperial and US customary unit for heat flux density.

Applications & Practical Context

In practical heat flux density terms, a liquid rocket combustion chamber regeneratively cooled throat equals 15 hp/ft².

Physical Setup

A physical magnitude of 1 hp/ft² corresponds to 8026.646615 W/m² in standard SI measurement.

Conversion to SI Unit: watt per square meter (W/m²)
1 hp/ft² = 8026.646615 W/m²

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

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 hp/ft² at Industrial Hydronic Radiator Panel (8 m²) = 64213.1729 W
Equals 64.2132 kW • 0.0642132 MW • 86.1113 hp
SI Power
64213.1729
W
Watts
Grid / Utility
64.2132
kW
Kilowatts
Power Plant
0.0642132
MW
Megawatts
Mechanical Rating
86.1113
hp
Horsepower (Mechanical)
Metric Horsepower
87.3056
PS
Metric Horsepower (PS)
HVAC Thermal Rating
219104.44
BTU/h
BTU per Hour
  1. 1. Normalize Input to SI Base Unit (W/m²):
    q" = 1 hp/ft² × 8026.64661546 = 8026.64661546 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 = (8026.64661546 W/m²) × (8 m²) = 64213.172924 W
  4. 4. Convert to Standard Engineering Units:
    • W: 64213.172924 × 1 = 64213.1729 W (Watts) • kW: 64213.172924 × 0.001 = 64.2132 kW (Kilowatts) • MW: 64213.172924 × 1 × 10⁻⁶ = 0.0642132 MW (Megawatts) • hp: 64213.172924 × 0.001341 = 86.1113 hp (Horsepower (Mechanical)) • PS: 64213.172924 × 0.00136 = 87.3056 PS (Metric Horsepower (PS)) • BTU/h: 64213.172924 × 3.4121 = 219104.44 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 1413.57273545 chus/hour/square foot (CHU/(h·ft²)) in 1 horsepower/square foot (hp/ft²). To calculate larger amounts manually, simply multiply your total number of horsepowers/square foot by the conversion multiplier of 1413.57273545.

The mathematical formula to convert horsepowers/square foot to chus/hour/square foot is: [value] * 1413.57273545 = chus/hour/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 chus/hour/square foot back to horsepowers/square foot, you must divide your starting value by 1413.57273545. Our bidirectional tool automatically computes this inverse equation the moment you type into the chu/hour/square foot input field.

1 Horsepower/square foot is larger than 1 CHU/hour/square foot. Specifically, 1 Horsepower/square foot equals exactly 1413.57273545 chus/hour/square foot, making it 1413.5727 times larger (a difference of 3.15 orders of magnitude). Therefore, quantities expressed in chus/hour/square foot require a larger numerical value to represent the same physical amount.

Under standard international measurement guidelines, 1 Horsepower/square foot converts to 1413.57273545 chus/hour/square foot. Precise numerical conversion factors ensure consistency across laboratory, engineering, and field data.