Convert btu (th)/square foot to joule/square meter

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Vice Versa: joule/square meter to btu (th)/square foot

Btu (th)/Square Foot

The thermochemical British thermal unit per square foot (Btu(th)/ft²) uses the thermochemical BTU (1054.35 J) to express heat density. Slightly different from the IT version, it is applied in thermochemical research and precise calorimetric measurements of radiant heat exposure. 


Joule/Square Meter

The joule per square metre (J/m²) is the SI unit of radiant exposure or heat density. It represents the total energy incident on or passing through a unit area. Used in solar radiation measurements, laser energy delivery, and thermal analysis to quantify energy flux integrated over time. 


Btu (th)/Square Foot to Joule/Square Meter conversion table
Btu (th)/Square FootJoule/Square Meter
111348.9
222697.9
556744.7
10113489
25283723
50567447
1001.13489E+06
5005.67447E+06
10001.13489E+07

Most common heat density unit conversions
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