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Convert Watts per Square Centimeter to Calories per Second-Square Centimeter

Instantly convert Watts per Square Centimeter (W/cm²) to Calories per Second-Square Centimeter (cal/(s·cm²)) with our free online calculator.

Reviewed by Christopher FloiedUpdated

Formula: W/cm² to cal/(s·cm²)multiply by 0.239006

Reference Table

Watts per Square Centimeter (W/cm²)Calories per Second-Square Centimeter (cal/(s·cm²))
10.239006
51.19503
102.39006
255.97514
5011.9503
10023.9006

How to Convert Watts per Square Centimeter to Calories per Second-Square Centimeter

Formula

To convert Watts per Square Centimeter (W/cm²) to Calories per Second-Square Centimeter (cal/(s·cm²)): multiply by 0.239006

Step-by-Step

  1. Start with your value in Watts per Square Centimeter (W/cm²).
  2. Multiply by 0.239006 to perform the conversion.
  3. The result is your value expressed in Calories per Second-Square Centimeter (cal/(s·cm²)).

Conversion Factor

1 W/cm² = 0.239006 cal/(s·cm²)

Reverse Factor

1 cal/(s·cm²) = 4.184 W/cm²

Worked Example

Convert 25 Watts per Square Centimeter to Calories per Second-Square Centimeter: 25 W/cm² = 5.97514 cal/(s·cm²)

About Watt per Square Centimeter (W/cm²)

A heat-flux unit equal to exactly 10,000 W/m² = 10 kW/m². Used where heat-flux values are very high enough that W/m² would produce awkwardly-large numbers: industrial laser-material processing (CO₂ laser cutting of mild steel ~10⁵ W/cm²; Nd:YAG / fiber-laser welding 10⁶-10⁷ W/cm²; pulsed laser ablation 10⁸-10¹⁰ W/cm²), power-electronics CPU and GPU thermal-design analysis (modern desktop CPU dies dissipate 10-100 W/cm² at full load; NVIDIA H100 GPU die ~80 W/cm²; mobile SoCs 5-15 W/cm² sustained; bare-die TIM area 1-5 W/cm² lower-bound for safe TIM choice), plasma-arc-cutting surface flux 10⁴-10⁵ W/cm², electron-beam welding ~10⁶ W/cm², thermal-weapons-system analysis (directed-energy weapons literature in IEEE Transactions on Plasma Science), and integrated-heat-spreader (IHS) / vapor-chamber / heatpipe design where the local die hot-spot heat flux drives cooling-solution selection.

About Calorie per Second-Square Centimeter (cal/(s·cm²))

A CGS heat-flux unit equal to exactly 41,840 W/m² = 41.84 kW/m². Traditionally used in atmospheric physics, geophysics, and solar-radiation research, where the closely-related unit 'langley per minute' (1 langley = 1 cal/cm², so 1 ly/min = 1 cal/(min·cm²) = 696.7 W/m²) appears in historical solar-radiation observations published by US Weather Bureau, NOAA Surface Radiation Budget Network (SURFRAD), and the Smithsonian Astrophysical Observatory's pre-satellite solar-constant measurements. Used heavily in pre-1990s solar-energy literature, atmospheric-science textbooks (Iqbal 'An Introduction to Solar Radiation'), and geophysical heat-flow measurements at hydrothermal-vent fields. Reference values: peak summer-noon insolation in cal/(s·cm²) ≈ 0.024 (= ~1,000 W/m²); average global insolation ~0.006 cal/(s·cm²). Today mostly superseded by W/m² in publications and instrumentation, retained only for historical-record continuity.

Quick Facts

  • 1 Watt per Square Centimeter equals 0.239006 Calories per Second-Square Centimeter
  • 1 Calorie per Second-Square Centimeter equals 4.184 Watts per Square Centimeter
  • Watt per Square Centimeter is a unit of heat flux
  • Calorie per Second-Square Centimeter is a unit of heat flux
  • This conversion is commonly used in fire protection engineering, electronics cooling, and solar energy
  • The Watt per Square Centimeter belongs to the metric system

Common Watt per Square Centimeter to Calorie per Second-Square Centimeter Conversions

Watts per Square Centimeter (W/cm²)Calories per Second-Square Centimeter (cal/(s·cm²))
0.010.00239006
0.10.0239006
0.250.0597514
0.50.119503
10.239006
20.478011
30.717017
51.19503
102.39006
153.58509
204.78011
255.97514
5011.9503
7517.9254
10023.9006
25059.7514
500119.503
1000239.006
50001195.03
100002390.06

Understanding Watts per Square Centimeter

The Watt per Square Centimeter (symbol: W/cm²) is a unit of heat flux. A heat-flux unit equal to exactly 10,000 W/m² = 10 kW/m². Used where heat-flux values are very high enough that W/m² would produce awkwardly-large numbers: industrial laser-material processing (CO₂ laser cutting of mild steel ~10⁵ W/cm²; Nd:YAG / fiber-laser welding 10⁶-10⁷ W/cm²; pulsed laser ablation 10⁸-10¹⁰ W/cm²), power-electronics CPU and GPU thermal-design analysis (modern desktop CPU dies dissipate 10-100 W/cm² at full load; NVIDIA H100 GPU die ~80 W/cm²; mobile SoCs 5-15 W/cm² sustained; bare-die TIM area 1-5 W/cm² lower-bound for safe TIM choice), plasma-arc-cutting surface flux 10⁴-10⁵ W/cm², electron-beam welding ~10⁶ W/cm², thermal-weapons-system analysis (directed-energy weapons literature in IEEE Transactions on Plasma Science), and integrated-heat-spreader (IHS) / vapor-chamber / heatpipe design where the local die hot-spot heat flux drives cooling-solution selection.

It belongs to the metric measurement system.

Watts per Square Centimeter are commonly used in fire protection engineering, electronics cooling, and solar energy.

Understanding Calories per Second-Square Centimeter

The Calorie per Second-Square Centimeter (symbol: cal/(s·cm²)) is a unit of heat flux. A CGS heat-flux unit equal to exactly 41,840 W/m² = 41.84 kW/m². Traditionally used in atmospheric physics, geophysics, and solar-radiation research, where the closely-related unit 'langley per minute' (1 langley = 1 cal/cm², so 1 ly/min = 1 cal/(min·cm²) = 696.7 W/m²) appears in historical solar-radiation observations published by US Weather Bureau, NOAA Surface Radiation Budget Network (SURFRAD), and the Smithsonian Astrophysical Observatory's pre-satellite solar-constant measurements. Used heavily in pre-1990s solar-energy literature, atmospheric-science textbooks (Iqbal 'An Introduction to Solar Radiation'), and geophysical heat-flow measurements at hydrothermal-vent fields. Reference values: peak summer-noon insolation in cal/(s·cm²) ≈ 0.024 (= ~1,000 W/m²); average global insolation ~0.006 cal/(s·cm²). Today mostly superseded by W/m² in publications and instrumentation, retained only for historical-record continuity.

It belongs to the metric measurement system.

Calories per Second-Square Centimeter are commonly used in fire protection engineering, electronics cooling, and solar energy.

Why Convert Watts per Square Centimeter to Calories per Second-Square Centimeter?

Converting between Watts per Square Centimeter and Calories per Second-Square Centimeter is a frequent requirement for engineers, scientists, and students working with heat flux values. Different industries and regions favour different unit systems, so having a dependable conversion tool saves time and prevents errors in technical calculations. Whether you are verifying a specification sheet, cross-checking simulation results, or preparing a report for an international audience, accurate heat flux conversion is essential.

Frequently Asked Questions

How do I convert Watts per Square Centimeter to Calories per Second-Square Centimeter?

A heat-flux unit equal to exactly 10,000 W/m² = 10 kW/m². To convert Watts per Square Centimeter to Calories per Second-Square Centimeter, multiply by 0.239006. For example, 25 W/cm² equals 5.97514 cal/(s·cm²).

How many Calories per Second-Square Centimeter are in 1 Watt per Square Centimeter?

There are 0.239006 Calories per Second-Square Centimeter in 1 Watt per Square Centimeter.

How many Watts per Square Centimeter are in 1 Calorie per Second-Square Centimeter?

There are 4.184 Watts per Square Centimeter in 1 Calorie per Second-Square Centimeter.

What is the formula for Watt per Square Centimeter to Calorie per Second-Square Centimeter conversion?

The formula is: multiply by 0.239006. This means 1 W/cm² = 0.239006 cal/(s·cm²).

Is a Watt per Square Centimeter bigger than a Calorie per Second-Square Centimeter?

Yes. One Watt per Square Centimeter is larger than one Calorie per Second-Square Centimeter because 1 W/cm² equals 0.239006 cal/(s·cm²), which is less than 1.

When do you need to convert between Watts per Square Centimeter and Calories per Second-Square Centimeter?

A CGS heat-flux unit equal to exactly 41,840 W/m² = 41. Watt per Square Centimeter and Calorie per Second-Square Centimeter are both heat flux units, so conversion comes up whenever one source of information uses one unit and another uses the other — a classic cross-reference challenge in engineering, trade, travel, and everyday life.

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