Btu per hour foot °F to Watts per meter kelvin Converter
Quick answer: To convert Btu per hour foot °F to watts per meter kelvin, multiply by 1.730735. For example, 10 Btu/(h·ft·°F) is 17.30735 W/(m·K). One btu per hour foot °f equals 1.730735 W/(m·K).
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Use the Btu per hour foot °F to Watts per meter kelvin Converter
Btu per hour foot °F to Watts per meter kelvin formula and what each symbol means
W/(m·K) = Btu/(h·ft·°F) × 1.730735
| Symbol | Meaning |
|---|---|
| Btu/(h·ft·°F) | Btu per hour foot °F |
| W/(m·K) | Watt per meter kelvin |
Btu per hour foot °F to Watts per meter kelvin examples
1 Btu/(h·ft·°F)
1 Btu/(h·ft·°F) × 1.730735 = 1.730735 W/(m·K).
10 Btu/(h·ft·°F)
10 Btu/(h·ft·°F) × 1.730735 = 17.30735 W/(m·K).
100 Btu/(h·ft·°F)
100 Btu/(h·ft·°F) × 1.730735 = 173.0735 W/(m·K).
Btu per hour foot °F compared with Watts per meter kelvin
One Btu/(h·ft·°F) is 1.731 times as large as one W/(m·K), so your number gets bigger when you convert Btu per hour foot °F to watts per meter kelvin and smaller when you convert back. If the answer is not larger than what you typed, you divided instead of multiplying.
About Btu per hour foot °F and watts per meter kelvin
Btu per hour foot °F (Btu/(h·ft·°F)): A US customary unit, about 1.7307 W/(m·K). Watt per meter kelvin (W/(m·K)): The SI unit of thermal conductivity.
How to calculate Btu per hour foot °F to Watts per meter kelvin step by step
- Enter the value in Btu/(h·ft·°F) (the starting unit).
- Multiply by 1.730735, because 1 Btu/(h·ft·°F) = 1.730735 W/(m·K).
- The product is the value in W/(m·K). To go back, divide by 1.730735 or multiply by 0.5777893.
Popular thermal conductivity conversions
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How to read your Btu per hour foot °F to Watts per meter kelvin result
Quick estimate: multiply by about 1.7 to get watts per meter kelvin from Btu per hour foot °F; this is within 1.8% of the exact factor. Thermal conductivity is how well a material conducts heat.
| BTU PER HOUR FOOT °F | WATTS PER METER KELVIN |
|---|---|
| 1 | 1.730735 |
| 2 | 3.461469 |
| 5 | 8.653673 |
| 10 | 17.30735 |
| 20 | 34.61469 |
| 50 | 86.53673 |
| 100 | 173.0735 |
| 1,000 | 1,730.735 |
Watts per meter kelvin to Btu per hour foot °F: quick table
| WATTS PER METER KELVIN | BTU PER HOUR FOOT °F |
|---|---|
| 1 | 0.5777893 |
| 5 | 2.888947 |
| 10 | 5.777893 |
| 25 | 14.44473 |
| 50 | 28.88947 |
| 100 | 57.77893 |
| 250 | 144.4473 |
| 500 | 288.8947 |
Common mistakes when calculating Btu per hour foot °F to Watts per meter kelvin
- Confusing conductivity with the heat transfer coefficient, which has a different unit.
- Dividing when you should multiply: from Btu/(h·ft·°F) to W/(m·K) multiply by 1.730735; from W/(m·K) to Btu/(h·ft·°F) divide by 1.730735.
Btu per hour foot °F to Watts per meter kelvin FAQ
How many W/(m·K) are in 1 Btu/(h·ft·°F)?
1 Btu/(h·ft·°F) equals 1.730735 W/(m·K).
How many Btu/(h·ft·°F) are in 1 W/(m·K)?
1 W/(m·K) equals 0.5777893 Btu/(h·ft·°F).
Is 1 Btu/(h·ft·°F) = 1.730735 W/(m·K) an exact conversion?
The factor is shown rounded to 7 significant figures (1.730735). The calculator above uses more digits.
What is a watt per meter kelvin (W/(m·K))?
The SI unit of thermal conductivity.
How can I estimate Btu per hour foot °F to watts per meter kelvin in my head?
Quick estimate: multiply by about 1.7 to get watts per meter kelvin from Btu per hour foot °F; this is within 1.8% of the exact factor.
What is 250 Btu/(h·ft·°F) in watts per meter kelvin?
250 Btu/(h·ft·°F) = 432.6837 W/(m·K) (since 250 × 1.730735).
What is 7 Btu/(h·ft·°F) in watts per meter kelvin?
7 Btu/(h·ft·°F) = 12.11514 W/(m·K) (since 7 × 1.730735).
What is 40 Btu/(h·ft·°F) in watts per meter kelvin?
40 Btu/(h·ft·°F) = 69.22939 W/(m·K) (since 40 × 1.730735).
How many decimals should I keep when converting Btu/(h·ft·°F) to W/(m·K)?
Match the precision of your original measurement. For example, 17.30735 W/(m·K) rounds to 17.3 W/(m·K) at 3 significant figures; keep more digits only for engineering or scientific work.
More in Thermal Conductivity converters
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Method, review and disclaimer
Edited by: Hemant Kumar and Anjita Rai, founders of ToolsVault (SEO and content professional, not a licensed adviser). Method: this tool runs in your browser using the formula shown on this page; the numbers you enter are not sent to our servers. Sources: NIST SP 811, Appendix B.8: conversion factors, BIPM: the International System of Units (SI)