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Heat Transfer

BTU·in/(hr·ft²·°F)toBTU/(hr·ft·°F)

Convert British thermal unit-inches per hour-square foot-Fahrenheit (BTU·in/(hr·ft²·°F)) to British thermal units per hour-foot-Fahrenheit (BTU/(hr·ft·°F)).

Factor1 BTU·in/(hr·ft²·°F) = 0.08333334 BTU/(hr·ft·°F)

Converter

BTU·in/(hr·ft²·°F)

Accepts numbers or expressions, e.g. 150 + 14.7

Result
1BTU/(hr·ft·°F)

Rendered to 6 significant figures.

Formula

Formula
BTU/(hr·ft·°F) = BTU·in/(hr·ft²·°F) × 0.08333334

Multiply any value in British thermal unit-inches per hour-square foot-Fahrenheit by 0.08333334 to obtain the value in British thermal units per hour-foot-Fahrenheit.

Worked example

Convert 12 BTU·in/(hr·ft²·°F) to BTU/(hr·ft·°F).

  1. 01Start with 12 BTU·in/(hr·ft²·°F).
  2. 02Multiply by the conversion factor: 12 × 0.08333334 = 1 BTU/(hr·ft·°F).
Result12 BTU·in/(hr·ft²·°F) = 1 BTU/(hr·ft·°F)

Conversion table

BTU·in/(hr·ft²·°F)BTU/(hr·ft·°F)
10.083333
20.16667
50.41667
100.83333
201.6667
504.1667
1008.3333
20016.667
50041.667
100083.333

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from BTU·in/(hr·ft²·°F) to BTU/(hr·ft·°F)?
1 BTU·in/(hr·ft²·°F) equals 0.08333334 BTU/(hr·ft·°F). To convert, multiply the value in British thermal unit-inches per hour-square foot-Fahrenheit by 0.08333334.
How do I convert 1 BTU·in/(hr·ft²·°F) to BTU/(hr·ft·°F)?
1 BTU·in/(hr·ft²·°F) = 0.0833333 BTU/(hr·ft·°F). For any value, multiply by 0.08333334.
How do I convert BTU/(hr·ft·°F) back to BTU·in/(hr·ft²·°F)?
Divide by the same factor — or equivalently, multiply by 12. So 1 BTU/(hr·ft·°F) = 12 BTU·in/(hr·ft²·°F).
When would I need to convert British thermal unit-inch per hour-square foot-Fahrenheit to British thermal unit per hour-foot-Fahrenheit?
Thermal conductivity conversions between BTU·in/(hr·ft²·°F) and BTU/(hr·ft·°F) are common in insulation specification, heat-exchanger design, and building-envelope analysis. SI units (W/(m·K)) appear in international standards and simulation tools, while BTU/(hr·ft·°F) is standard in US codes and vendor datasheets.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).

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