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

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Live Conversion • ISO 80000-5:2019 Certified
1 Erg/hour/square millimeter = 2.39005833 × 10⁻⁶ Calorie (th)/hour/square centimeter
1 erg/(h·mm²) = 2.390058 × 10⁻⁶ cal (th)/(h·cm²) • 1 cal (th)/(h·cm²) = 418399.829851 erg/(h·mm²)
Erg/hour/square millimeter to Calorie (th)/hour/square centimeter: One Erg/hour/square millimeter is equal to 2.39005833 × 10⁻⁶ Calories (th)/hour/square centimeter.
Certified Authority Value
0.00000239
cal (th)/(h·cm²)
Exact: 1 cal (th)/(h·cm²) ≡ 418399.8298507359 erg/(h·mm²)
erg/(h·mm²)
erg/(h·mm²)
Swap to Calorie (th)/hour/square centimeter to Erg/hour/square millimeter
Swap to Calorie (th)/hour/square centimeter to Erg/hour/square millimeter
cal (th)/(h·cm²)
cal (th)/(h·cm²) 2.39005833 × 10⁻⁶
Quick Values:
Conversion Formula
To convert Erg/hour/square millimeter to Calorie (th)/hour/square centimeter, multiply by 2.39005833 × 10⁻⁶
erg/(h·mm²) × 2.39005833 × 10⁻⁶ = cal (th)/(h·cm²)

Calculation: 1 erg/(h·mm²) × 2.39005833 × 10⁻⁶ = 2.39005833 × 10⁻⁶ cal (th)/(h·cm²)

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

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

Tap any row to calculate
Erg/hour/square millimeter to Calorie (th)/hour/square centimeter: Primary Direct Table (15 Steps)
Erg/hour/square millimeter to Calorie (th)/hour/square centimeter Conversion Reference Table
Conversion & Equivalent Value Scientific Notation
0.001 erg/(h·mm²) 2.390058 × 10⁻⁹ cal (th)/(h·cm²) 2.39 × 10⁻⁹
0.01 erg/(h·mm²) 2.390058 × 10⁻⁸ cal (th)/(h·cm²) 2.39 × 10⁻⁸
0.1 erg/(h·mm²) 2.390058 × 10⁻⁷ cal (th)/(h·cm²) 2.39 × 10⁻⁷
0.5 erg/(h·mm²) 1.195029 × 10⁻⁶ cal (th)/(h·cm²) 1.195 × 10⁻⁶
1 erg/(h·mm²) 2.390058 × 10⁻⁶ cal (th)/(h·cm²) 2.39 × 10⁻⁶
2 erg/(h·mm²) 4.780117 × 10⁻⁶ cal (th)/(h·cm²) 4.78 × 10⁻⁶
5 erg/(h·mm²) 1.195029 × 10⁻⁵ cal (th)/(h·cm²) 1.195 × 10⁻⁵
10 erg/(h·mm²) 2.390058 × 10⁻⁵ cal (th)/(h·cm²) 2.39 × 10⁻⁵
20 erg/(h·mm²) 4.780117 × 10⁻⁵ cal (th)/(h·cm²) 4.78 × 10⁻⁵
25 erg/(h·mm²) 5.975146 × 10⁻⁵ cal (th)/(h·cm²) 5.975 × 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
250 erg/(h·mm²) 0.000597515 cal (th)/(h·cm²) 5.975 × 10⁻⁴
500 erg/(h·mm²) 0.00119503 cal (th)/(h·cm²) 1.195 × 10⁻³
1000 erg/(h·mm²) 0.00239006 cal (th)/(h·cm²) 2.39 × 10⁻³
Calorie (th)/hour/square centimeter to Erg/hour/square millimeter: Reciprocal Summary
Calorie (th)/hour/square centimeter to Erg/hour/square millimeter Conversion Reference Table
Reciprocal & Equivalent Value Scientific Notation
1 cal (th)/(h·cm²) 418399.829851 erg/(h·mm²) 4.184 × 10⁵
5 cal (th)/(h·cm²) 2091999.149254 erg/(h·mm²) 2.092 × 10⁶
10 cal (th)/(h·cm²) 4183998.298507 erg/(h·mm²) 4.184 × 10⁶
50 cal (th)/(h·cm²) 2.091999 × 10⁷ erg/(h·mm²) 2.092 × 10⁷
100 cal (th)/(h·cm²) 4.183998 × 10⁷ erg/(h·mm²) 4.184 × 10⁷
View Complete 15-Row Calorie (th)/hour/square centimeter to Erg/hour/square millimeter 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 Erg/hour/square millimeter (erg/(h·mm²)) and Calorie (th)/hour/square centimeter (cal (th)/(h·cm²)):

Erg/hour/square millimeter References:

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

Calorie (th)/hour/square centimeter References:

  • Glass greenhouse passive solar heating transmission flux 60 cal (th)/(h·cm²)

Tap any benchmark above to automatically calculate its exact equivalent in Calorie (th)/hour/square centimeter.

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

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

Converting Erg/hour/square millimeter (erg/(h·mm²)) to Calorie (th)/hour/square centimeter (cal (th)/(h·cm²)) 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 Erg/hour/square millimeter translates to 2.390058 × 10⁻⁶ Calorie (th)/hour/square centimeter (1 cal (th)/(h·cm²) = 418399.829851 erg/(h·mm²)).

Direct Factor1 erg/(h·mm²) = 2.390058 × 10⁻⁶ cal (th)/(h·cm²)
Inverse Ratio1 cal (th)/(h·cm²) = 418399.829851 erg/(h·mm²)
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 erg/(h·mm²) = 2.777778 × 10⁻⁵ watt per square meter (W/m²)
2. Target SI Bridge (ktarget):1 cal (th)/(h·cm²) = 11.622217 watt per square meter (W/m²)
Step-by-step substitution for Erg/hour/square millimeter → Calorie (th)/hour/square centimeter:V(cal (th)/(h·cm²)) = V(erg/(h·mm²)) × ( 2.777778 × 10⁻⁵ / 11.622217 ) = V(erg/(h·mm²)) × 2.390058 × 10⁻⁶
Mathematical FormulaValue in Calorie (th)/hour/square centimeter = Value in Erg/hour/square millimeter × 2.39005833 × 10⁻⁶Direct computational formula applied for standard conversion.
Worked Example

To convert 50 Erg/hour/square millimeter (erg/(h·mm²)) to Calorie (th)/hour/square centimeter (cal (th)/(h·cm²)): multiply 50 by 2.390058 × 10⁻⁶ to get 0.000119503 cal (th)/(h·cm²). At an industrial engineering scale, 10000 erg/(h·mm²) converts to 0.0239006 cal (th)/(h·cm²).

Inverse check: 1 cal (th)/(h·cm²) = 418399.829851 erg/(h·mm²).

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

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

Calorie (th)/hour/square centimeter

cal (th)/(h·cm²)
Standard Unit

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

Applications & Practical Context

In practical heat flux density terms, a glass greenhouse passive solar heating transmission flux equals 60 cal (th)/(h·cm²).

Physical Setup

A physical magnitude of 1 cal (th)/(h·cm²) corresponds to 11.622217 W/m² in standard SI measurement.

Conversion to SI Unit: watt per square meter (W/m²)
1 cal (th)/(h·cm²) = 11.622217 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 erg/(h·mm²) at Industrial Hydronic Radiator Panel (8 m²) = 0.0002222 W
Equals 2.2222 × 10⁻⁷ kW • 2.222222 × 10⁻¹⁰ MW • 2.98 × 10⁻⁷ hp
SI Power
0.0002222
W
Watts
Grid / Utility
2.2222 × 10⁻⁷
kW
Kilowatts
Power Plant
2.222222 × 10⁻¹⁰
MW
Megawatts
Mechanical Rating
2.98 × 10⁻⁷
hp
Horsepower (Mechanical)
Metric Horsepower
3.0214 × 10⁻⁷
PS
Metric Horsepower (PS)
HVAC Thermal Rating
0.00076
BTU/h
BTU per Hour
  1. 1. Normalize Input to SI Base Unit (W/m²):
    q" = 1 erg/(h·mm²) × 2.77777778 × 10⁻⁵ = 2.77777778 × 10⁻⁵ 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 = (2.77777778 × 10⁻⁵ W/m²) × (8 m²) = 0.00022222 W
  4. 4. Convert to Standard Engineering Units:
    • W: 0.00022222 × 1 = 0.0002222 W (Watts) • kW: 0.00022222 × 0.001 = 2.2222 × 10⁻⁷ kW (Kilowatts) • MW: 0.00022222 × 1 × 10⁻⁶ = 2.222222 × 10⁻¹⁰ MW (Megawatts) • hp: 0.00022222 × 0.001341 = 2.98 × 10⁻⁷ hp (Horsepower (Mechanical)) • PS: 0.00022222 × 0.00136 = 3.0214 × 10⁻⁷ PS (Metric Horsepower (PS)) • BTU/h: 0.00022222 × 3.4121 = 0.00076 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 2.39005833 × 10⁻⁶ calories (th)/hour/square centimeter (cal (th)/(h·cm²)) in 1 erg/hour/square millimeter (erg/(h·mm²)). To calculate larger amounts manually, simply multiply your total number of ergs/hour/square millimeter by the conversion multiplier of 2.39005833 × 10⁻⁶.

The mathematical formula to convert ergs/hour/square millimeter to calories (th)/hour/square centimeter is: [value] * 2.39005833 × 10⁻⁶ = calories (th)/hour/square centimeter. 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 (th)/hour/square centimeter back to ergs/hour/square millimeter, you must divide your starting value by 2.39005833 × 10⁻⁶. Our bidirectional tool automatically computes this inverse equation the moment you type into the calorie (th)/hour/square centimeter input field.

1 Calorie (th)/hour/square centimeter is larger than 1 Erg/hour/square millimeter. Specifically, 1 Erg/hour/square millimeter equals 2.39005833 × 10⁻⁶ calories (th)/hour/square centimeter, meaning 1 Calorie (th)/hour/square centimeter is 418399.8299 times larger than 1 Erg/hour/square millimeter (a difference of 5.62 orders of magnitude). Expressing measurements in ergs/hour/square millimeter requires a larger numerical value to represent the equivalent physical magnitude.

Under standard international measurement guidelines, 1 Erg/hour/square millimeter converts to 2.39005833 × 10⁻⁶ calories (th)/hour/square centimeter. Precise numerical conversion factors ensure consistency across laboratory, engineering, and field data.