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... Joule per square meter = ... Btu (th) per square foot
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Joule per square meter to Btu (th) per square foot Converter
Use this page to convert joule per square meter values into btu (th) per square foot, with background details, formulas, a worked example, and a quick conversion table.
Conversion formula
1 J/m^2 = 0.0000881140197228821 Btu (th)/ft^2
1 Btu (th)/ft^2 = 11,348.9317947926 J/m^2
Example: 1000 J/m^2 = 0.0881140197228821 Btu (th)/ft^2
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Joule per square meter
Joule per square meter expresses heat energy distributed over an area.
History: Area-normalized heat units are used to compare radiant exposure and heat input across surfaces.
Current use: Joules per square meter are used in heat-transfer, radiation, solar exposure, and surface energy calculations.
Also written as J/m^2.
Btu (th) per square foot
One Btu (th) per square foot is equal to 11348.9317947926 joules per square meter.
History: The thermochemical Btu variant preserves an alternate heat-unit definition.
Current use: This unit is mainly used when source data distinguishes thermochemical Btu values.
Also written as Btu (th)/ft^2.
Joule per square meter to Btu (th) per square foot table
| Joule per square meter [J/m^2] | Btu (th) per square foot [Btu (th)/ft^2] |
|---|---|
| 0.01 J/m^2 | 0.000000881140197228821 Btu (th)/ft^2 |
| 0.1 J/m^2 | 0.00000881140197228821 Btu (th)/ft^2 |
| 1 J/m^2 | 0.0000881140197228821 Btu (th)/ft^2 |
| 2 J/m^2 | 0.000176228039445764 Btu (th)/ft^2 |
| 5 J/m^2 | 0.000440570098614411 Btu (th)/ft^2 |
| 10 J/m^2 | 0.000881140197228821 Btu (th)/ft^2 |
| 20 J/m^2 | 0.00176228039445764 Btu (th)/ft^2 |
| 50 J/m^2 | 0.00440570098614411 Btu (th)/ft^2 |
| 100 J/m^2 | 0.00881140197228821 Btu (th)/ft^2 |
Frequently asked questions
How many Btu (th) per square foot (Btu (th)/ft^2) are in one Joule per square meter (J/m^2)?
One Joule per square meter equals 0.0000881140197228821 Btu (th) per square foot.
How do you convert Joule per square meter to Btu (th) per square foot?
Multiply the Joule per square meter value by 0.0000881140197228821 to get the result in Btu (th) per square foot.
How do you convert Btu (th) per square foot back to Joule per square meter?
Multiply the Btu (th) per square foot value by 11,348.9317947926 to get back to Joule per square meter.
What is 1000 Joule per square meter in Btu (th) per square foot?
1000 Joule per square meter equals 0.0881140197228821 Btu (th) per square foot.