Watts per meter kelvin to Btu per hour foot °F Converter
Quick answer: To convert watts per meter kelvin to Btu per hour foot °F, multiply by 0.5777893. For example, 10 W/(m·K) is 5.777893 Btu/(h·ft·°F). One watt per meter kelvin equals 0.5777893 Btu/(h·ft·°F).
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Use the Watts per meter kelvin to Btu per hour foot °F Converter
Watts per meter kelvin to Btu per hour foot °F formula and what each symbol means
Btu/(h·ft·°F) = W/(m·K) × 0.5777893
| Symbol | Meaning |
|---|---|
| W/(m·K) | Watt per meter kelvin |
| Btu/(h·ft·°F) | Btu per hour foot °F |
Watts per meter kelvin to Btu per hour foot °F examples
1 W/(m·K)
1 W/(m·K) × 0.5777893 = 0.5777893 Btu/(h·ft·°F).
10 W/(m·K)
10 W/(m·K) × 0.5777893 = 5.777893 Btu/(h·ft·°F).
100 W/(m·K)
100 W/(m·K) × 0.5777893 = 57.77893 Btu/(h·ft·°F).
Watts per meter kelvin compared with Btu per hour foot °F
One Btu/(h·ft·°F) is 1.731 times as large as one W/(m·K), so your number gets smaller when you convert watts per meter kelvin to Btu per hour foot °F and bigger when you convert back. If the answer is not smaller than what you typed, you multiplied instead of dividing.
About watts per meter kelvin and Btu per hour foot °F
Watt per meter kelvin (W/(m·K)): The SI unit of thermal conductivity. Btu per hour foot °F (Btu/(h·ft·°F)): A US customary unit, about 1.7307 W/(m·K).
How to calculate Watts per meter kelvin to Btu per hour foot °F step by step
- Enter the value in W/(m·K) (the starting unit).
- Multiply by 0.5777893, because 1 W/(m·K) = 0.5777893 Btu/(h·ft·°F).
- The product is the value in Btu/(h·ft·°F). To go back, divide by 0.5777893 or multiply by 1.730735.
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How to read your Watts per meter kelvin to Btu per hour foot °F result
Quick estimate: multiply by about 0.58 to get Btu per hour foot °F from watts per meter kelvin; this is within 0.4% of the exact factor. Copper is roughly 400 W/(m·K), water about 0.6, and still air near 0.026, which is why trapped air insulates well.
| WATTS PER METER KELVIN | BTU PER HOUR FOOT °F |
|---|---|
| 1 | 0.5777893 |
| 2 | 1.155579 |
| 5 | 2.888947 |
| 10 | 5.777893 |
| 20 | 11.55579 |
| 50 | 28.88947 |
| 100 | 57.77893 |
| 1,000 | 577.7893 |
Btu per hour foot °F to Watts per meter kelvin: quick table
| BTU PER HOUR FOOT °F | WATTS PER METER KELVIN |
|---|---|
| 1 | 1.730735 |
| 5 | 8.653673 |
| 10 | 17.30735 |
| 25 | 43.26837 |
| 50 | 86.53673 |
| 100 | 173.0735 |
| 250 | 432.6837 |
| 500 | 865.3673 |
Common mistakes when calculating Watts per meter kelvin to Btu per hour foot °F
- Confusing conductivity with the heat transfer coefficient, which has a different unit.
- Dividing when you should multiply: from W/(m·K) to Btu/(h·ft·°F) multiply by 0.5777893; from Btu/(h·ft·°F) to W/(m·K) divide by 0.5777893.
Watts per meter kelvin to Btu per hour foot °F FAQ
How many Btu/(h·ft·°F) are in 1 W/(m·K)?
1 W/(m·K) equals 0.5777893 Btu/(h·ft·°F).
How many W/(m·K) are in 1 Btu/(h·ft·°F)?
1 Btu/(h·ft·°F) equals 1.730735 W/(m·K).
Is 1 W/(m·K) = 0.5777893 Btu/(h·ft·°F) an exact conversion?
The factor is shown rounded to 7 significant figures (0.5777893). The calculator above uses more digits.
What is a btu per hour foot °F (Btu/(h·ft·°F))?
A US customary unit, about 1.7307 W/(m·K).
How can I estimate watts per meter kelvin to Btu per hour foot °F in my head?
Quick estimate: multiply by about 0.58 to get Btu per hour foot °F from watts per meter kelvin; this is within 0.4% of the exact factor.
What is 12 W/(m·K) in Btu per hour foot °F?
12 W/(m·K) = 6.933472 Btu/(h·ft·°F) (since 12 × 0.5777893).
What is 60 W/(m·K) in Btu per hour foot °F?
60 W/(m·K) = 34.66736 Btu/(h·ft·°F) (since 60 × 0.5777893).
What is 250 W/(m·K) in Btu per hour foot °F?
250 W/(m·K) = 144.4473 Btu/(h·ft·°F) (since 250 × 0.5777893).
How many decimals should I keep when converting W/(m·K) to Btu/(h·ft·°F)?
Match the precision of your original measurement. For example, 5.777893 Btu/(h·ft·°F) rounds to 5.78 Btu/(h·ft·°F) at 3 significant figures; keep more digits only for engineering or scientific work.
More in Thermal Conductivity converters
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- Watts per centimeter kelvin to Btu inches per hour square foot °F Converter
- Btu per hour foot °F to Btu inches per hour square foot °F Converter
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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)