Units of measurement
From value
To value
Calculations
BTU per square foot per second
Joule per square meter per second
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Information
BTU per square foot per second
BTU per square foot per second (BTU/ft²·s) – a unit of thermal flux density per unit area using British Thermal Units (BTU).
Joule per square meter per second
Joule per square meter per second (J/m²·s) – a unit of energy flow through a surface per unit time.