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Calories (th)/hour/cm² to Ergs/hour/square millimeter Converter (cal (th)/(h·cm²) to erg/(h·mm²))

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Live Conversion • ISO 80000-5:2019 Certified
1 Calorie (th)/hour/cm² = 418400 Erg/hour/square millimeter
1 cal (th)/(h·cm²) = 418,400 erg/(h·mm²) • 1 erg/(h·mm²) = 2.390057 × 10⁻⁶ cal (th)/(h·cm²)
Calorie (th)/hour/cm² to Erg/hour/square millimeter: One Calorie (th)/hour/cm² is equal to 418400 Ergs/hour/square millimeter.
Certified Authority Value
418400.00000000
erg/(h·mm²)
Exact: 1 erg/(h·mm²) ≡ 2.3900573614 × 10⁻⁶ cal (th)/(h·cm²)
cal (th)/(h·cm²)
cal (th)/(h·cm²)
Swap to Erg/hour/square millimeter to Calorie (th)/hour/cm²
Swap to Erg/hour/square millimeter to Calorie (th)/hour/cm²
erg/(h·mm²)
erg/(h·mm²) 418400
Quick Values:
Conversion Formula
To convert Calorie (th)/hour/cm² to Erg/hour/square millimeter, multiply by 418400
cal (th)/(h·cm²) × 418400 = erg/(h·mm²)

Calculation: 1 cal (th)/(h·cm²) × 418400 = 418400 erg/(h·mm²)

Common Calorie (th)/hour/cm² to Erg/hour/square millimeter Calculations

Quick-lookup reference table showing calculated equivalents for standard increments between Calorie (th)/hour/cm² (cal (th)/(h·cm²)) and Erg/hour/square millimeter (erg/(h·mm²)).

Tap any row to calculate
Calorie (th)/hour/cm² to Erg/hour/square millimeter: Primary Direct Table (15 Steps)
Calorie (th)/hour/cm² to Erg/hour/square millimeter Conversion Reference Table
Conversion & Equivalent Value Scientific Notation
0.001 cal (th)/(h·cm²) 418.4 erg/(h·mm²) 4.184 × 10²
0.01 cal (th)/(h·cm²) 4184 erg/(h·mm²) 4.184 × 10³
0.1 cal (th)/(h·cm²) 41840 erg/(h·mm²) 4.184 × 10⁴
0.5 cal (th)/(h·cm²) 209200 erg/(h·mm²) 2.092 × 10⁵
1 cal (th)/(h·cm²) 418400 erg/(h·mm²) 4.184 × 10⁵
2 cal (th)/(h·cm²) 836800 erg/(h·mm²) 8.368 × 10⁵
5 cal (th)/(h·cm²) 2092000 erg/(h·mm²) 2.092 × 10⁶
10 cal (th)/(h·cm²) 4184000 erg/(h·mm²) 4.184 × 10⁶
20 cal (th)/(h·cm²) 8368000 erg/(h·mm²) 8.368 × 10⁶
25 cal (th)/(h·cm²) 1.046 × 10⁷ erg/(h·mm²) 1.046 × 10⁷
50 cal (th)/(h·cm²) 2.092 × 10⁷ erg/(h·mm²) 2.092 × 10⁷
100 cal (th)/(h·cm²) 4.184 × 10⁷ erg/(h·mm²) 4.184 × 10⁷
250 cal (th)/(h·cm²) 1.046 × 10⁸ erg/(h·mm²) 1.046 × 10⁸
500 cal (th)/(h·cm²) 2.092 × 10⁸ erg/(h·mm²) 2.092 × 10⁸
1000 cal (th)/(h·cm²) 4.184 × 10⁸ erg/(h·mm²) 4.184 × 10⁸
Erg/hour/square millimeter to Calorie (th)/hour/cm²: Reciprocal Summary
Erg/hour/square millimeter to Calorie (th)/hour/cm² Conversion Reference Table
Reciprocal & Equivalent Value Scientific Notation
1 erg/(h·mm²) 2.390057 × 10⁻⁶ cal (th)/(h·cm²) 2.39 × 10⁻⁶
5 erg/(h·mm²) 1.195029 × 10⁻⁵ cal (th)/(h·cm²) 1.195 × 10⁻⁵
10 erg/(h·mm²) 2.390057 × 10⁻⁵ cal (th)/(h·cm²) 2.39 × 10⁻⁵
50 erg/(h·mm²) 0.000119503 cal (th)/(h·cm²) 1.195 × 10⁻⁴
100 erg/(h·mm²) 0.000239006 cal (th)/(h·cm²) 2.39 × 10⁻⁴
View Complete 15-Row Erg/hour/square millimeter to Calorie (th)/hour/cm² 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 Calorie (th)/hour/cm² (cal (th)/(h·cm²)) and Erg/hour/square millimeter (erg/(h·mm²)):

Calorie (th)/hour/cm² References:

  • Solar constant extraterrestrial solar irradiance at top of atmosphere 117.1 cal (th)/(h·cm²)
  • Clear sky direct midday summer sunlight striking sea level ground 86.0421 cal (th)/(h·cm²)
  • Human body resting thermal metabolic heat radiation to room 4.3021 cal (th)/(h·cm²)
  • Overcast winter day diffuse solar irradiance at sea level 8.6042 cal (th)/(h·cm²)

Erg/hour/square millimeter References:

  • Micro-machined MEMS sensor thermal dissipation flux rate 36000 erg/(h·mm²)

Tap any benchmark above to automatically calculate its exact equivalent in Erg/hour/square millimeter.

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

How to Convert Calorie (th)/hour/cm² to Erg/hour/square millimeter

Converting Calorie (th)/hour/cm² (cal (th)/(h·cm²)) to Erg/hour/square millimeter (erg/(h·mm²)) 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 bridges modern MKSA metric standards with the historical Gaussian centimetre-gram-second (CGS) electrostatic and electromagnetic framework. In CGS systems, electromagnetic units (such as statvolts, abvolts, dynes, ergs, and gauss) are formulated directly from mechanical dimensions, with electrostatic-to-electromagnetic relations tied to the speed of light in vacuum (c ≈ 2.99792458 × 1010 cm/s). Exactly 1 Calorie (th)/hour/cm² translates to 418400 Erg/hour/square millimeter (1 erg/(h·mm²) = 2.390057 × 10⁻⁶ cal (th)/(h·cm²)).

Direct Factor1 cal (th)/(h·cm²) = 418400 erg/(h·mm²)
Inverse Ratio1 erg/(h·mm²) = 2.390057 × 10⁻⁶ cal (th)/(h·cm²)
Conversion ScaleSI to CGS Gaussian / ESU / EMU 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 cal (th)/(h·cm²) = 11.622222 watt per square meter (W/m²)
2. Target SI Bridge (ktarget):1 erg/(h·mm²) = 2.777778 × 10⁻⁵ watt per square meter (W/m²)
Step-by-step substitution for Calorie (th)/hour/cm² → Erg/hour/square millimeter:V(erg/(h·mm²)) = V(cal (th)/(h·cm²)) × ( 11.622222 / 2.777778 × 10⁻⁵ ) = V(cal (th)/(h·cm²)) × 418400
Mathematical FormulaValue in Erg/hour/square millimeter = Value in Calorie (th)/hour/cm² × 418400Direct computational formula applied for standard conversion.
Worked Example

For an engineering input of 36 cal (th)/(h·cm²), applying the conversion factor yields exactly 1.50624 × 10⁷ erg/(h·mm²). At larger operational scale, 10000 Calorie (th)/hour/cm² corresponds to 4.184 × 10⁹ erg/(h·mm²).

Inverse check: 1 erg/(h·mm²) = 2.390057 × 10⁻⁶ cal (th)/(h·cm²).

Understanding Calorie (th)/hour/cm² and Erg/hour/square millimeter

Calorie (th)/hour/cm²

cal (th)/(h·cm²)
Standard Unit

A Calorie (th)/hour/cm² (cal (th)/(h·cm²)) is a recognized unit for heat flux density.

Applications & Practical Context

In practical heat flux density terms, a solar constant extraterrestrial solar irradiance at top of atmosphere equals 117.1 cal (th)/(h·cm²), a clear sky direct midday summer sunlight striking sea level ground equals 86.0421 cal (th)/(h·cm²), a human body resting thermal metabolic heat radiation to room equals 4.3021 cal (th)/(h·cm²).

Physical Setup

A physical magnitude of 1 cal (th)/(h·cm²) corresponds to 11.622222 W/m² in standard SI measurement.

Conversion to SI Unit: watt per square meter (W/m²)
1 cal (th)/(h·cm²) = 11.622222 W/m²

Erg/hour/square millimeter

erg/(h·mm²)
CGS System

An Erg/hour/square millimeter (erg/(h·mm²)) is a unit of heat flux density in the centimeter-gram-second (CGS) system.

Applications & Practical Context

In practical heat flux density terms, a micro-machined MEMS sensor thermal dissipation flux rate equals 36000 erg/(h·mm²).

Physical Setup

A physical magnitude of 1 erg/(h·mm²) corresponds to 2.777778 × 10⁻⁵ W/m² in standard SI measurement.

Conversion to SI Unit: watt per square meter (W/m²)
1 erg/(h·mm²) = 2.777778 × 10⁻⁵ 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 cal (th)/(h·cm²) at Industrial Hydronic Radiator Panel (8 m²) = 92.9778 W
Equals 0.09298 kW • 9.297778 × 10⁻⁵ MW • 0.1247 hp
SI Power
92.9778
W
Watts
Grid / Utility
0.09298
kW
Kilowatts
Power Plant
9.297778 × 10⁻⁵
MW
Megawatts
Mechanical Rating
0.1247
hp
Horsepower (Mechanical)
Metric Horsepower
0.1264
PS
Metric Horsepower (PS)
HVAC Thermal Rating
317.25
BTU/h
BTU per Hour
  1. 1. Normalize Input to SI Base Unit (W/m²):
    q" = 1 cal (th)/(h·cm²) × 11.62222222 = 11.62222222 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 = (11.62222222 W/m²) × (8 m²) = 92.977778 W
  4. 4. Convert to Standard Engineering Units:
    • W: 92.977778 × 1 = 92.9778 W (Watts) • kW: 92.977778 × 0.001 = 0.09298 kW (Kilowatts) • MW: 92.977778 × 1 × 10⁻⁶ = 9.297778 × 10⁻⁵ MW (Megawatts) • hp: 92.977778 × 0.001341 = 0.1247 hp (Horsepower (Mechanical)) • PS: 92.977778 × 0.00136 = 0.1264 PS (Metric Horsepower (PS)) • BTU/h: 92.977778 × 3.4121 = 317.25 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 418400 ergs/hour/square millimeter (erg/(h·mm²)) in 1 calorie (th)/hour/cm² (cal (th)/(h·cm²)). To calculate larger amounts manually, simply multiply your total number of calories (th)/hour/cm² by the conversion multiplier of 418400.

The mathematical formula to convert calories (th)/hour/cm² to ergs/hour/square millimeter is: [value] * 418400 = ergs/hour/square millimeter. 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 ergs/hour/square millimeter back to calories (th)/hour/cm², you must divide your starting value by 418400. Our bidirectional tool automatically computes this inverse equation the moment you type into the erg/hour/square millimeter input field.

1 Calorie (th)/hour/cm² is larger than 1 Erg/hour/square millimeter. Specifically, 1 Calorie (th)/hour/cm² equals exactly 418400 ergs/hour/square millimeter, making it 418400 times larger (a difference of 5.62 orders of magnitude). Therefore, quantities expressed in ergs/hour/square millimeter require a larger numerical value to represent the same physical amount.

Under standard international measurement guidelines, 1 Calorie (th)/hour/cm² converts to 418400 ergs/hour/square millimeter. Precise numerical conversion factors ensure consistency across laboratory, engineering, and field data.