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Heat Transfer

BTU/(hr·ft·°F)toBTU·in/(hr·ft²·°F)

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

Factor1 BTU/(hr·ft·°F) = 12 BTU·in/(hr·ft²·°F)

Converter

BTU/(hr·ft·°F)

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

Result
12BTU·in/(hr·ft²·°F)

Rendered to 6 significant figures.

Formula

Formula
BTU·in/(hr·ft²·°F) = BTU/(hr·ft·°F) × 12

Multiply any value in British thermal units per hour-foot-Fahrenheit by 12 to obtain the value in British thermal unit-inches per hour-square foot-Fahrenheit.

Worked example

Convert 1 BTU/(hr·ft·°F) to BTU·in/(hr·ft²·°F).

  1. 01Start with 1 BTU/(hr·ft·°F).
  2. 02Multiply by the conversion factor: 1 × 12 = 12 BTU·in/(hr·ft²·°F).
Result1 BTU/(hr·ft·°F) = 12 BTU·in/(hr·ft²·°F)

Conversion table

BTU/(hr·ft·°F)BTU·in/(hr·ft²·°F)
112
224
560
10120
20240
50600
1001200
2002400
5006000
100012000

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from BTU/(hr·ft·°F) to BTU·in/(hr·ft²·°F)?
1 BTU/(hr·ft·°F) equals 12 BTU·in/(hr·ft²·°F). To convert, multiply the value in British thermal units per hour-foot-Fahrenheit by 12.
How do I convert 1 BTU/(hr·ft·°F) to BTU·in/(hr·ft²·°F)?
1 BTU/(hr·ft·°F) = 12 BTU·in/(hr·ft²·°F). For any value, multiply by 12.
How do I convert BTU·in/(hr·ft²·°F) back to BTU/(hr·ft·°F)?
Divide by the same factor — or equivalently, multiply by 0.08333334. So 1 BTU·in/(hr·ft²·°F) = 0.0833333 BTU/(hr·ft·°F).
When would I need to convert British thermal unit per hour-foot-Fahrenheit to British thermal unit-inch per hour-square foot-Fahrenheit?
Thermal conductivity conversions between BTU/(hr·ft·°F) and BTU·in/(hr·ft²·°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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