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Chus/hour/sq. foot/°C to Calories (it)/second/cm²/°C Converter (CHU/(h·ft²·°C) to cal/(s·cm²·°C))

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Live Conversion • ISO 80000-5:2019 Certified
1 CHU/hour/sq. foot/°C = 0.00013562082 Calorie (IT)/second/cm²/°C
1 CHU/(h·ft²·°C) = 0.000135621 cal/(s·cm²·°C) • 1 cal/(s·cm²·°C) = 7373.499084 CHU/(h·ft²·°C)
CHU/hour/sq. foot/°C to Calorie (IT)/second/cm²/°C: One CHU/hour/sq. foot/°C is equal to 0.00013562082 Calories (it)/second/cm²/°C.
Certified Authority Value
0.00013562
cal/(s·cm²·°C)
Exact: 1 cal/(s·cm²·°C) ≡ 7373.499084 CHU/(h·ft²·°C)
CHU/(h·ft²·°C)
CHU/(h·ft²·°C)
Swap to Calorie (IT)/second/cm²/°C to CHU/hour/sq. foot/°C
Swap to Calorie (IT)/second/cm²/°C to CHU/hour/sq. foot/°C
cal/(s·cm²·°C)
cal/(s·cm²·°C) 0.00013562082
Quick Values:
Conversion Formula
To convert CHU/hour/sq. foot/°C to Calorie (IT)/second/cm²/°C, multiply by 0.00013562082
CHU/(h·ft²·°C) × 0.00013562082 = cal/(s·cm²·°C)

Calculation: 1 CHU/(h·ft²·°C) × 0.00013562082 = 0.00013562082 cal/(s·cm²·°C)

Common CHU/hour/sq. foot/°C to Calorie (IT)/second/cm²/°C Calculations

Quick-lookup reference table showing calculated equivalents for standard increments between CHU/hour/sq. foot/°C (CHU/(h·ft²·°C)) and Calorie (IT)/second/cm²/°C (cal/(s·cm²·°C)).

Tap any row to calculate
CHU/hour/sq. foot/°C to Calorie (IT)/second/cm²/°C: Primary Direct Table (15 Steps)
CHU/hour/sq. foot/°C to Calorie (IT)/second/cm²/°C Conversion Reference Table
Conversion & Equivalent Value Scientific Notation
0.001 CHU/(h·ft²·°C) 1.356208 × 10⁻⁷ cal/(s·cm²·°C) 1.356 × 10⁻⁷
0.01 CHU/(h·ft²·°C) 1.356208 × 10⁻⁶ cal/(s·cm²·°C) 1.356 × 10⁻⁶
0.1 CHU/(h·ft²·°C) 1.356208 × 10⁻⁵ cal/(s·cm²·°C) 1.356 × 10⁻⁵
0.5 CHU/(h·ft²·°C) 6.781041 × 10⁻⁵ cal/(s·cm²·°C) 6.781 × 10⁻⁵
1 CHU/(h·ft²·°C) 0.000135621 cal/(s·cm²·°C) 1.356 × 10⁻⁴
2 CHU/(h·ft²·°C) 0.000271242 cal/(s·cm²·°C) 2.712 × 10⁻⁴
5 CHU/(h·ft²·°C) 0.000678104 cal/(s·cm²·°C) 6.781 × 10⁻⁴
10 CHU/(h·ft²·°C) 0.00135621 cal/(s·cm²·°C) 1.356 × 10⁻³
20 CHU/(h·ft²·°C) 0.00271242 cal/(s·cm²·°C) 2.712 × 10⁻³
25 CHU/(h·ft²·°C) 0.00339052 cal/(s·cm²·°C) 3.391 × 10⁻³
50 CHU/(h·ft²·°C) 0.00678104 cal/(s·cm²·°C) 6.781 × 10⁻³
100 CHU/(h·ft²·°C) 0.0135621 cal/(s·cm²·°C) 1.356 × 10⁻²
250 CHU/(h·ft²·°C) 0.0339052 cal/(s·cm²·°C) 3.391 × 10⁻²
500 CHU/(h·ft²·°C) 0.0678104 cal/(s·cm²·°C) 6.781 × 10⁻²
1000 CHU/(h·ft²·°C) 0.135621 cal/(s·cm²·°C) 1.356 × 10⁻¹
Calorie (IT)/second/cm²/°C to CHU/hour/sq. foot/°C: Reciprocal Summary
Calorie (IT)/second/cm²/°C to CHU/hour/sq. foot/°C Conversion Reference Table
Reciprocal & Equivalent Value Scientific Notation
1 cal/(s·cm²·°C) 7373.499084 CHU/(h·ft²·°C) 7.373 × 10³
5 cal/(s·cm²·°C) 36867.49542 CHU/(h·ft²·°C) 3.687 × 10⁴
10 cal/(s·cm²·°C) 73734.99084 CHU/(h·ft²·°C) 7.373 × 10⁴
50 cal/(s·cm²·°C) 368674.9542 CHU/(h·ft²·°C) 3.687 × 10⁵
100 cal/(s·cm²·°C) 737349.9084 CHU/(h·ft²·°C) 7.373 × 10⁵
View Complete 15-Row Calorie (IT)/second/cm²/°C to CHU/hour/sq. foot/°C 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 CHU/hour/sq. foot/°C (CHU/(h·ft²·°C)) and Calorie (IT)/second/cm²/°C (cal/(s·cm²·°C)):

CHU/hour/sq. foot/°C References:

  • Stationary ambient air natural free convection on vertical wall 0.880565 CHU/(h·ft²·°C)
  • Forced air breeze blowing across automotive cooling radiator 8.8057 CHU/(h·ft²·°C)
  • Liquid water forced circulation inside heat exchanger pipe 528.34 CHU/(h·ft²·°C)
  • Nucleate boiling heat transfer in pressurized steam boiler tube 2641.7 CHU/(h·ft²·°C)

Calorie (IT)/second/cm²/°C References:

  • Stationary ambient air natural free convection on vertical wall 0.000119 cal/(s·cm²·°C)
  • Forced air breeze blowing across automotive cooling radiator 0.001194 cal/(s·cm²·°C)
  • Liquid water forced circulation inside heat exchanger pipe 0.071654 cal/(s·cm²·°C)
  • Nucleate boiling heat transfer in pressurized steam boiler tube 0.358269 cal/(s·cm²·°C)

Tap any benchmark above to automatically calculate its exact equivalent in Calorie (IT)/second/cm²/°C.

ISQ Dimension: [M T⁻³ Θ⁻¹] Coherent SI Unit: watt per square meter kelvin (W/(m²·K)) Thermodynamics & Heat Transfer

How to Convert CHU/hour/sq. foot/°C to Calorie (IT)/second/cm²/°C

Converting CHU/hour/sq. foot/°C (CHU/(h·ft²·°C)) to Calorie (IT)/second/cm²/°C (cal/(s·cm²·°C)) is a core calculation in Heat Transfer Coefficient, which quantifies the proportionality constant between the heat flux and the thermodynamic driving temperature difference. 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/sq. foot/°C equals 0.000135621 Calorie (IT)/second/cm²/°C, while 1 cal/(s·cm²·°C) equals 7373.499084 CHU/(h·ft²·°C).

Direct Factor1 CHU/(h·ft²·°C) = 0.000135621 cal/(s·cm²·°C)
Inverse Ratio1 cal/(s·cm²·°C) = 7373.499084 CHU/(h·ft²·°C)
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 kelvin (W/(m²·K))) 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·°C) = 5.678173 watt per square meter kelvin (W/(m²·K))
2. Target SI Bridge (ktarget):1 cal/(s·cm²·°C) = 41868 watt per square meter kelvin (W/(m²·K))
Step-by-step substitution for CHU/hour/sq. foot/°C → Calorie (IT)/second/cm²/°C:V(cal/(s·cm²·°C)) = V(CHU/(h·ft²·°C)) × ( 5.678173 / 41868 ) = V(CHU/(h·ft²·°C)) × 0.000135621
Mathematical FormulaValue in Calorie (IT)/second/cm²/°C = Value in CHU/hour/sq. foot/°C × 0.00013562082Direct computational formula applied for standard conversion.
Worked Example

To convert 24 CHU/hour/sq. foot/°C (CHU/(h·ft²·°C)) to Calorie (IT)/second/cm²/°C (cal/(s·cm²·°C)): multiply 24 by 0.000135621 to get 0.0032549 cal/(s·cm²·°C). At an industrial engineering scale, 10000 CHU/(h·ft²·°C) converts to 1.356208 cal/(s·cm²·°C).

Inverse check: 1 cal/(s·cm²·°C) = 7373.499084 CHU/(h·ft²·°C).

Understanding CHU/hour/sq. foot/°C and Calorie (IT)/second/cm²/°C

CHU/hour/sq. foot/°C

CHU/(h·ft²·°C)
Imperial / US

A CHU/hour/sq. foot/°C (CHU/(h·ft²·°C)) is an imperial and US customary unit for heat transfer coefficient.

Applications & Practical Context

In practical heat transfer coefficient terms, a stationary ambient air natural free convection on vertical wall equals 0.880565 CHU/(h·ft²·°C), a forced air breeze blowing across automotive cooling radiator equals 8.8057 CHU/(h·ft²·°C), a liquid water forced circulation inside heat exchanger pipe equals 528.34 CHU/(h·ft²·°C).

Physical Setup

A physical magnitude of 1 CHU/(h·ft²·°C) corresponds to 5.678173 W/(m²·K) in standard SI measurement.

Conversion to SI Unit: watt per square meter kelvin (W/(m²·K))
1 CHU/(h·ft²·°C) = 5.678173 W/(m²·K)

Calorie (IT)/second/cm²/°C

cal/(s·cm²·°C)
Standard Unit

A Calorie (IT)/second/cm²/°C (cal/(s·cm²·°C)) is a recognized unit for heat transfer coefficient.

Applications & Practical Context

In practical heat transfer coefficient terms, a stationary ambient air natural free convection on vertical wall equals 0.000119 cal/(s·cm²·°C), a forced air breeze blowing across automotive cooling radiator equals 0.001194 cal/(s·cm²·°C), a liquid water forced circulation inside heat exchanger pipe equals 0.071654 cal/(s·cm²·°C).

Physical Setup

A physical magnitude of 1 cal/(s·cm²·°C) corresponds to 41868 W/(m²·K) in standard SI measurement.

Conversion to SI Unit: watt per square meter kelvin (W/(m²·K))
1 cal/(s·cm²·°C) = 41868 W/(m²·K)

Domain Metrology & Engineering Applications

Governing Law & Equation

Newton's Law of Cooling (q = h · ΔT)

Measurement Instrumentation

Rigorously quantified in laboratory and field settings using surface heat flux transducer plates coupled with surface RTD arrays, and wind tunnel boundary layer calorimeters.

Primary Industry Sectors

Applied across industrial heat exchanger rating, nuclear reactor cooling loop simulation, electronics forced-air cooling, and architectural U-value certification under international metrology standard ISO 80000-5:2019, ASME PTC.

Institutional Metrology & Standard Authority:

Formulas, conversion coefficients, and base definitions on this page strictly adhere to the ISO 80000-5:2019, ASME PTC and the BIPM SI Brochure (9th Edition). Governed by Newton's Law of Cooling (q = h · ΔT) under ISO 80000 dimensional vector [M T⁻³ Θ⁻¹].

Multi-Variable Engineering Bridge Convective Thermodynamics & Cooling

Heat Transfer Coefficient to Convective Flux Bridge (W/m² • kW/m² • BTU/(h·ft²) • cal/(s·cm²))

Calculate Newton’s law of cooling convective heat flux q" = h × ΔT across convective film temperature drops, bridging heat transfer coefficient [M T⁻³ Θ⁻¹] with heat flux [M T⁻³].

q" = h × ΔT
Vector: [W/(m²·K)] × [K] → [W/m²]
Live Calculated Bridge Equivalent:
1 CHU/(h·ft²·°C) at Forced Air Duct Cooling (ΔT = 25 K) = 141.9543 W/m²
Equals 0.142 kW/m² • 44.9993 BTU/(h·ft²) • 0.00339052 cal/(s·cm²)
SI Heat Flux
141.9543
W/m²
Watts per Square Meter
Solar / Combustion
0.142
kW/m²
Kilowatts per Square Meter
US Building Envelope
44.9993
BTU/(h·ft²)
BTU per Hour Sq. Foot
CGS Thermal
0.00339052
cal/(s·cm²)
Calories per Second Sq. Cm
Meteorology
0.2035
Ly/min
Langley per Minute
Furnace Flux
0.00014195
MW/m²
Megawatts per Square Meter
  1. 1. Normalize Input to SI Base Unit (W/(m²·K)):
    h = 1 CHU/(h·ft²·°C) × 5.67817254 = 5.67817254 W/(m²·K)
  2. 2. Apply Engineering Parameter (ΔT):
    Selected condition: Forced Air Duct Cooling (ΔT = 25 K) at ΔT = 25 K
  3. 3. Execute Governing Physical Law in SI Units:
    q" = h × ΔT = (5.67817254 W/(m²·K)) × (25 K) = 141.954313 W/m²
  4. 4. Convert to Standard Engineering Units:
    • W/m²: 141.954313 × 1 = 141.9543 W/m² (Watts per Square Meter) • kW/m²: 141.954313 × 0.001 = 0.142 kW/m² (Kilowatts per Square Meter) • BTU/(h·ft²): 141.954313 × 0.317 = 44.9993 BTU/(h·ft²) (BTU per Hour Sq. Foot) • cal/(s·cm²): 141.954313 × 2.3885 × 10⁻⁵ = 0.00339052 cal/(s·cm²) (Calories per Second Sq. Cm) • Ly/min: 141.954313 × 0.001433 = 0.2035 Ly/min (Langley per Minute) • MW/m²: 141.954313 × 1 × 10⁻⁶ = 0.00014195 MW/m² (Megawatts per Square Meter)
Explore Full Heat Flux Density Converter →
Engineering Substance / Operating Standard Parameter Value (K) Reference State / Condition Typical Industrial & Engineering Application
Natural Air Convection (ΔT = 15 K) 15 ΔT = 15 K (15°C) Still room air room heating surface delta
Forced Air Duct Cooling (ΔT = 25 K) 25 ΔT = 25 K (25°C) Forced fan ventilation heatsink airflow
Forced Liquid Water Cooling (ΔT = 30 K) 30 ΔT = 30 K Pumped liquid cold plate or engine jacket
Nucleate Boiling Heat Transfer (ΔT = 50 K) 50 ΔT = 50 K Boiler evaporator tube wall boundary
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Frequently Asked Questions

There are exactly 0.00013562082 calories (it)/second/cm²/°c (cal/(s·cm²·°C)) in 1 chu/hour/sq. foot/°c (CHU/(h·ft²·°C)). To calculate larger amounts manually, simply multiply your total number of chus/hour/sq. foot/°c by the conversion multiplier of 0.00013562082.

The mathematical formula to convert chus/hour/sq. foot/°c to calories (it)/second/cm²/°c is: [value] * 0.00013562082 = calories (it)/second/cm²/°c. 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 calories (it)/second/cm²/°c back to chus/hour/sq. foot/°c, you must divide your starting value by 0.00013562082. Our bidirectional tool automatically computes this inverse equation the moment you type into the calorie (it)/second/cm²/°c input field.

1 Calorie (IT)/second/cm²/°C is larger than 1 CHU/hour/sq. foot/°C. Specifically, 1 CHU/hour/sq. foot/°C equals 0.00013562082 calories (it)/second/cm²/°c, meaning 1 Calorie (IT)/second/cm²/°C is 7373.4991 times larger than 1 CHU/hour/sq. foot/°C (a difference of 3.87 orders of magnitude). Expressing measurements in chus/hour/sq. foot/°c requires a larger numerical value to represent the equivalent physical magnitude.

Under standard international measurement guidelines, 1 CHU/hour/sq. foot/°C converts to 0.00013562082 calories (it)/second/cm²/°c. Precise numerical conversion factors ensure consistency across laboratory, engineering, and field data.