Convert BTU per Hour-Square Foot-Fahrenheit to Kilowatts per Square Meter-Kelvin
Instantly convert BTU per Hour-Square Foot-Fahrenheit (BTU/(hr·ft²·°F)) to Kilowatts per Square Meter-Kelvin (kW/(m²·K)) with our free online calculator.
Formula: BTU/(hr·ft²·°F) to kW/(m²·K) — multiply by 0.00567826
Reference Table
| BTU per Hour-Square Foot-Fahrenheit (BTU/(hr·ft²·°F)) | Kilowatts per Square Meter-Kelvin (kW/(m²·K)) |
|---|---|
| 1 | 0.00567826 |
| 5 | 0.0283913 |
| 10 | 0.0567826 |
| 25 | 0.141957 |
| 50 | 0.283913 |
| 100 | 0.567826 |
How to Convert BTU per Hour-Square Foot-Fahrenheit to Kilowatts per Square Meter-Kelvin
Formula
To convert BTU per Hour-Square Foot-Fahrenheit (BTU/(hr·ft²·°F)) to Kilowatts per Square Meter-Kelvin (kW/(m²·K)): multiply by 0.00567826
Step-by-Step
- Start with your value in BTU per Hour-Square Foot-Fahrenheit (BTU/(hr·ft²·°F)).
- Multiply by 0.00567826 to perform the conversion.
- The result is your value expressed in Kilowatts per Square Meter-Kelvin (kW/(m²·K)).
Conversion Factor
1 BTU/(hr·ft²·°F) = 0.00567826 kW/(m²·K)
Reverse Factor
1 kW/(m²·K) = 176.11 BTU/(hr·ft²·°F)
Worked Example
Convert 25 BTU per Hour-Square Foot-Fahrenheit to Kilowatts per Square Meter-Kelvin: 25 BTU/(hr·ft²·°F) = 0.141957 kW/(m²·K)
About BTU per Hour-Square Foot-Fahrenheit (BTU/(hr·ft²·°F))
An imperial heat-transfer-coefficient unit (≈ 5.6783 W/(m²·K) per NIST SP 811). Dominant in US HVAC design, building-envelope U-factor calculations per ASHRAE 90.1, refrigeration system design, and petroleum-industry / chemical-process heat-exchanger specifications per TEMA. ASHRAE Handbook fundamentals tables list film coefficients for building surfaces in BTU/(hr·ft²·°F): indoor air still-film 1.47 BTU/(hr·ft²·°F) (the universally-cited value for interior-wall winter heating-load calculations); exterior with 15 mph wind 6.0; exterior with 7.5 mph summer wind 4.0; roof underside ~1.47-1.61 depending on emissivity. US heat-exchanger overall heat-transfer coefficients (U-values) per Perry's: water-water shell-tube 150-300 BTU/(hr·ft²·°F); steam-condensing-to-water condenser 200-1,500; refrigerant-to-air finned coil 5-15 (air-side dominant); fuel-fired furnace radiation section 1-3 (radiation-dominated). Convert BTU/(hr·ft²·°F) to W/(m²·K) by multiplying by 5.6783; to kW/(m²·K) by multiplying by 5.6783 × 10⁻³.
About Kilowatt per Square Meter-Kelvin (kW/(m²·K))
A heat-transfer-coefficient unit equal to exactly 1,000 W/(m²·K). Used for high-performance heat-transfer applications where W/(m²·K) values become inconveniently large: nucleate-boiling and two-phase-flow heat transfer (saturated nucleate pool boiling of water at 1 atm reaches 50-100 kW/(m²·K) near critical heat flux per Rohsenow correlation), dropwise condensation surfaces (advanced superhydrophobic coatings achieve 100-200 kW/(m²·K) per Nature Materials research on slippery liquid-infused porous surfaces, SLIPS), compact heat exchanger (CHX) surface effectiveness in cryogenic processing and aerospace (printed-circuit heat exchangers Heatric / Velocys / Vacuum Process Engineering achieve 5-15 kW/(m²·K) overall U), Falling-film evaporators in refrigeration and desalination (MSF and MED plants), and microchannel cooling research for power-electronics thermal management. Convert kW/(m²·K) to W/(m²·K) by multiplying by 1,000; to BTU/(hr·ft²·°F) by multiplying by 176.1.
Quick Facts
- 1 BTU per Hour-Square Foot-Fahrenheit equals 0.00567826 Kilowatts per Square Meter-Kelvin
- 1 Kilowatt per Square Meter-Kelvin equals 176.11 BTU per Hour-Square Foot-Fahrenheit
- BTU per Hour-Square Foot-Fahrenheit is a unit of heat transfer coefficient
- Kilowatt per Square Meter-Kelvin is a unit of heat transfer coefficient
- This conversion is commonly used in heat exchanger design, HVAC engineering, and process optimization
- The BTU per Hour-Square Foot-Fahrenheit belongs to the imperial system
- The Kilowatt per Square Meter-Kelvin belongs to the metric system
Common BTU per Hour-Square Foot-Fahrenheit to Kilowatt per Square Meter-Kelvin Conversions
| BTU per Hour-Square Foot-Fahrenheit (BTU/(hr·ft²·°F)) | Kilowatts per Square Meter-Kelvin (kW/(m²·K)) |
|---|---|
| 0.01 | 0.0000567826 |
| 0.1 | 0.000567826 |
| 0.25 | 0.00141957 |
| 0.5 | 0.00283913 |
| 1 | 0.00567826 |
| 2 | 0.0113565 |
| 3 | 0.0170348 |
| 5 | 0.0283913 |
| 10 | 0.0567826 |
| 15 | 0.0851739 |
| 20 | 0.113565 |
| 25 | 0.141957 |
| 50 | 0.283913 |
| 75 | 0.42587 |
| 100 | 0.567826 |
| 250 | 1.41956 |
| 500 | 2.83913 |
| 1000 | 5.67826 |
| 5000 | 28.3913 |
| 10000 | 56.7826 |
Understanding BTU per Hour-Square Foot-Fahrenheit
The BTU per Hour-Square Foot-Fahrenheit (symbol: BTU/(hr·ft²·°F)) is a unit of heat transfer coefficient. An imperial heat-transfer-coefficient unit (≈ 5.6783 W/(m²·K) per NIST SP 811). Dominant in US HVAC design, building-envelope U-factor calculations per ASHRAE 90.1, refrigeration system design, and petroleum-industry / chemical-process heat-exchanger specifications per TEMA. ASHRAE Handbook fundamentals tables list film coefficients for building surfaces in BTU/(hr·ft²·°F): indoor air still-film 1.47 BTU/(hr·ft²·°F) (the universally-cited value for interior-wall winter heating-load calculations); exterior with 15 mph wind 6.0; exterior with 7.5 mph summer wind 4.0; roof underside ~1.47-1.61 depending on emissivity. US heat-exchanger overall heat-transfer coefficients (U-values) per Perry's: water-water shell-tube 150-300 BTU/(hr·ft²·°F); steam-condensing-to-water condenser 200-1,500; refrigerant-to-air finned coil 5-15 (air-side dominant); fuel-fired furnace radiation section 1-3 (radiation-dominated). Convert BTU/(hr·ft²·°F) to W/(m²·K) by multiplying by 5.6783; to kW/(m²·K) by multiplying by 5.6783 × 10⁻³.
It belongs to the imperial measurement system.
BTU per Hour-Square Foot-Fahrenheit are commonly used in heat exchanger design, HVAC engineering, and process optimization.
Understanding Kilowatts per Square Meter-Kelvin
The Kilowatt per Square Meter-Kelvin (symbol: kW/(m²·K)) is a unit of heat transfer coefficient. A heat-transfer-coefficient unit equal to exactly 1,000 W/(m²·K). Used for high-performance heat-transfer applications where W/(m²·K) values become inconveniently large: nucleate-boiling and two-phase-flow heat transfer (saturated nucleate pool boiling of water at 1 atm reaches 50-100 kW/(m²·K) near critical heat flux per Rohsenow correlation), dropwise condensation surfaces (advanced superhydrophobic coatings achieve 100-200 kW/(m²·K) per Nature Materials research on slippery liquid-infused porous surfaces, SLIPS), compact heat exchanger (CHX) surface effectiveness in cryogenic processing and aerospace (printed-circuit heat exchangers Heatric / Velocys / Vacuum Process Engineering achieve 5-15 kW/(m²·K) overall U), Falling-film evaporators in refrigeration and desalination (MSF and MED plants), and microchannel cooling research for power-electronics thermal management. Convert kW/(m²·K) to W/(m²·K) by multiplying by 1,000; to BTU/(hr·ft²·°F) by multiplying by 176.1.
It belongs to the metric measurement system.
Kilowatts per Square Meter-Kelvin are commonly used in heat exchanger design, HVAC engineering, and process optimization.
Why Convert BTU per Hour-Square Foot-Fahrenheit to Kilowatts per Square Meter-Kelvin?
Converting between BTU per Hour-Square Foot-Fahrenheit and Kilowatts per Square Meter-Kelvin is a frequent requirement for engineers, scientists, and students working with heat transfer coefficient values. Different industries and regions favour different unit systems, so having a dependable conversion tool saves time and prevents errors in technical calculations. Whether you are verifying a specification sheet, cross-checking simulation results, or preparing a report for an international audience, accurate heat transfer coefficient conversion is essential.
Frequently Asked Questions
How do I convert BTU per Hour-Square Foot-Fahrenheit to Kilowatts per Square Meter-Kelvin?
An imperial heat-transfer-coefficient unit (≈ 5. To convert BTU per Hour-Square Foot-Fahrenheit to Kilowatts per Square Meter-Kelvin, multiply by 0.00567826. For example, 25 BTU/(hr·ft²·°F) equals 0.141957 kW/(m²·K).
How many Kilowatts per Square Meter-Kelvin are in 1 BTU per Hour-Square Foot-Fahrenheit?
There are 0.00567826 Kilowatts per Square Meter-Kelvin in 1 BTU per Hour-Square Foot-Fahrenheit.
How many BTU per Hour-Square Foot-Fahrenheit are in 1 Kilowatt per Square Meter-Kelvin?
There are 176.11 BTU per Hour-Square Foot-Fahrenheit in 1 Kilowatt per Square Meter-Kelvin.
What is the formula for BTU per Hour-Square Foot-Fahrenheit to Kilowatt per Square Meter-Kelvin conversion?
The formula is: multiply by 0.00567826. This means 1 BTU/(hr·ft²·°F) = 0.00567826 kW/(m²·K).
Is a BTU per Hour-Square Foot-Fahrenheit bigger than a Kilowatt per Square Meter-Kelvin?
Yes. One BTU per Hour-Square Foot-Fahrenheit is larger than one Kilowatt per Square Meter-Kelvin because 1 BTU/(hr·ft²·°F) equals 0.00567826 kW/(m²·K), which is less than 1.
When do you need to convert between BTU per Hour-Square Foot-Fahrenheit and Kilowatts per Square Meter-Kelvin?
A heat-transfer-coefficient unit equal to exactly 1,000 W/(m²·K). BTU per Hour-Square Foot-Fahrenheit and Kilowatt per Square Meter-Kelvin are both heat transfer coeff units, so conversion comes up whenever one source of information uses one unit and another uses the other — a classic cross-reference challenge in engineering, trade, travel, and everyday life.