Convert watt/square metre to kilocalorie (it)/hour/square metre

Please provide a value.
Please provide a value.

Watt/Square Metre

The watt per square metre (W/m²) is the SI unit of heat flux density and irradiance. It represents the power transmitted per unit area. The solar constant (total solar irradiance) at Earth's orbit is approximately 1361 W/m². Used in heat transfer engineering, solar energy, and thermal radiation analysis. 


Kilocalorie (IT)/Hour/Square Metre

The kilocalorie (IT) per hour per square metre (kcal/(h·m²)) equals approximately 1.163 W/m². It is used in older European engineering standards and building physics for expressing heat flux through walls, floors, and ceilings. Common in older HVAC and building energy standards. 


Watt/Square Metre to Kilocalorie (IT)/Hour/Square Metre conversion table
Watt/Square MetreKilocalorie (IT)/Hour/Square MetreKilocalorie (IT)/Hour/Square MetreWatt/Square Metre
10.85984511.163
21.7196922.326
32.5795433.489
54.2992355.815
108.598451011.63
2017.19692023.26
2521.49612529.075
5042.99235058.15
10085.9845100116.3
250214.961250290.75
500429.923500581.5
1000859.84510001163
How to convert Watt/Square Metre to Kilocalorie (IT)/Hour/Square Metre

1 W/m² = 0.859845 kcal/(h·m²). To convert any value, multiply it by 0.859845. For example, 25 W/m² = 21.4961 kcal/(h·m²).

Frequently asked questions
How many kcal/(h·m²) are there in one W/m²?
One W/m² is equal to 0.859845 kcal/(h·m²).
How do you convert Watt/Square Metre to Kilocalorie (IT)/Hour/Square Metre?
Multiply the value in Watt/Square Metre by 0.859845 to get the result in Kilocalorie (IT)/Hour/Square Metre.
How much is 25 W/m² in kcal/(h·m²)?
25 W/m² is equal to 21.4961 kcal/(h·m²).
How do you convert Kilocalorie (IT)/Hour/Square Metre back to Watt/Square Metre?
Divide by the same factor: multiply the value in Kilocalorie (IT)/Hour/Square Metre by 1.163 to get Watt/Square Metre.

Most common heat flux density unit conversions