Watts per square meter kelvin to Btu per hour square foot °F Converter
Quick answer: To convert watts per square meter kelvin to Btu per hour square foot °F, multiply by 0.1761102. For example, 10 W/(m²·K) is 1.761102 Btu/(h·ft²·°F). One watt per square meter kelvin equals 0.1761102 Btu/(h·ft²·°F).
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Use the Watts per square meter kelvin to Btu per hour square foot °F Converter
Watts per square meter kelvin to Btu per hour square foot °F formula and what each symbol means
Btu/(h·ft²·°F) = W/(m²·K) × 0.1761102
| Symbol | Meaning |
|---|---|
| W/(m²·K) | Watt per square meter kelvin |
| Btu/(h·ft²·°F) | Btu per hour square foot °F |
Watts per square meter kelvin to Btu per hour square foot °F examples
1 W/(m²·K)
1 W/(m²·K) × 0.1761102 = 0.1761102 Btu/(h·ft²·°F).
10 W/(m²·K)
10 W/(m²·K) × 0.1761102 = 1.761102 Btu/(h·ft²·°F).
100 W/(m²·K)
100 W/(m²·K) × 0.1761102 = 17.61102 Btu/(h·ft²·°F).
Watts per square meter kelvin compared with Btu per hour square foot °F
One Btu/(h·ft²·°F) is 5.678 times as large as one W/(m²·K), so your number gets smaller when you convert watts per square meter kelvin to Btu per hour square 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 square meter kelvin and Btu per hour square foot °F
Watt per square meter kelvin (W/(m²·K)): The SI unit of heat transfer coefficient. Btu per hour square foot °F (Btu/(h·ft²·°F)): A US customary unit, about 5.6783 W/(m²·K).
How to calculate Watts per square meter kelvin to Btu per hour square foot °F step by step
- Enter the value in W/(m²·K) (the starting unit).
- Multiply by 0.1761102, because 1 W/(m²·K) = 0.1761102 Btu/(h·ft²·°F).
- The product is the value in Btu/(h·ft²·°F). To go back, divide by 0.1761102 or multiply by 5.678263.
Popular heat transfer coefficient conversions
How to read your Watts per square meter kelvin to Btu per hour square foot °F result
Quick estimate: multiply by about 0.176 to get Btu per hour square foot °F from watts per square meter kelvin; this is within 0.1% of the exact factor. One kcal/(h·m²·°C) is about 1.1622 W/(m²·K), and one Btu/(h·ft²·°F) is about 5.6783 W/(m²·K).
| WATTS PER SQUARE METER KELVIN | BTU PER HOUR SQUARE FOOT °F |
|---|---|
| 1 | 0.1761102 |
| 2 | 0.3522204 |
| 5 | 0.8805509 |
| 10 | 1.761102 |
| 20 | 3.522204 |
| 50 | 8.805509 |
| 100 | 17.61102 |
| 1,000 | 176.1102 |
Btu per hour square foot °F to Watts per square meter kelvin: quick table
| BTU PER HOUR SQUARE FOOT °F | WATTS PER SQUARE METER KELVIN |
|---|---|
| 1 | 5.678263 |
| 5 | 28.39132 |
| 10 | 56.78263 |
| 25 | 141.9566 |
| 50 | 283.9132 |
| 100 | 567.8263 |
| 250 | 1,419.566 |
| 500 | 2,839.132 |
Common mistakes when calculating Watts per square meter kelvin to Btu per hour square foot °F
- Forgetting that a Celsius degree and a kelvin are the same size.
- Dividing when you should multiply: from W/(m²·K) to Btu/(h·ft²·°F) multiply by 0.1761102; from Btu/(h·ft²·°F) to W/(m²·K) divide by 0.1761102.
Watts per square meter kelvin to Btu per hour square foot °F FAQ
How many Btu/(h·ft²·°F) are in 1 W/(m²·K)?
1 W/(m²·K) equals 0.1761102 Btu/(h·ft²·°F).
How many W/(m²·K) are in 1 Btu/(h·ft²·°F)?
1 Btu/(h·ft²·°F) equals 5.678263 W/(m²·K).
Is 1 W/(m²·K) = 0.1761102 Btu/(h·ft²·°F) an exact conversion?
The factor is shown rounded to 7 significant figures (0.1761102). The calculator above uses more digits.
What is a btu per hour square foot °F (Btu/(h·ft²·°F))?
A US customary unit, about 5.6783 W/(m²·K).
How can I estimate watts per square meter kelvin to Btu per hour square foot °F in my head?
Quick estimate: multiply by about 0.176 to get Btu per hour square foot °F from watts per square meter kelvin; this is within 0.1% of the exact factor.
What is 60 W/(m²·K) in Btu per hour square foot °F?
60 W/(m²·K) = 10.56661 Btu/(h·ft²·°F) (since 60 × 0.1761102).
What is 250 W/(m²·K) in Btu per hour square foot °F?
250 W/(m²·K) = 44.02755 Btu/(h·ft²·°F) (since 250 × 0.1761102).
What is 7 W/(m²·K) in Btu per hour square foot °F?
7 W/(m²·K) = 1.232771 Btu/(h·ft²·°F) (since 7 × 0.1761102).
How many decimals should I keep when converting W/(m²·K) to Btu/(h·ft²·°F)?
Match the precision of your original measurement. For example, 1.761102 Btu/(h·ft²·°F) rounds to 1.76 Btu/(h·ft²·°F) at 3 significant figures; keep more digits only for engineering or scientific work.
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)