Convert BTU to BTU using the exact conversion factor. This page provides the formula, reference values, and practical context for engineering, technical calculations, and professional measurement use.
BTU per hour per square foot (BTU/h·ft²) = BTU per second per square foot (BTU/s·ft²) × 0.000278
To convert BTU per hour per square foot (BTU/h·ft²) to BTU per second per square foot (BTU/s·ft²), multiply the value by 0.000278. The conversion factor is based on standardized unit definitions and is suitable for engineering analysis, system design, and professional measurement workflows.
| btu per hour per square foot | btu per second per square foot |
|---|---|
| 1 | 0.00028 |
| 2 | 0.00056 |
| 5 | 0.00139 |
| 10 | 0.00278 |
| 25 | 0.00694 |
| 50 | 0.01389 |
| 100 | 0.02778 |
Convert 1 BTU/h.ft2 to BTU/s.ft2.
So, 1 BTU/h.ft2 = 0.000278 BTU/s.ft2.
One BTU per hour per square foot (BTU/h·ft²) equals 0.000278 BTU per second per square foot (BTU/s·ft²)
Units of heat flux density are standardized measurements used to quantify heat flow per unit surface area.
One BTU per second per square foot (BTU/s·ft²) equals 3599.992392 BTUs per hour per square foot (BTU/h·ft²)
Units of heat flux density are standardized measurements used to quantify heat flow per unit surface area.
How many BTU per second per square foot (BTU/s·ft²) are in 1 BTU per hour per square foot (BTU/h·ft²)?
1 BTU per hour per square foot (BTU/h·ft²) = 0.000278 BTU per second per square foot (BTU/s·ft²).
How many BTU per second per square foot (BTU/s·ft²) are in one BTU per hour per square foot (BTU/h·ft²)?
One BTU per hour per square foot (BTU/h·ft²) equals 0.000278 BTU per second per square foot (BTU/s·ft²).
How many BTU/s.ft2 are in one BTU/h.ft2?
One BTU/h.ft2 equals 0.000278 BTU/s.ft2.
What is the formula for converting BTU per hour per square foot (BTU/h·ft²) to BTU per second per square foot (BTU/s·ft²)?
Multiply the BTU per hour per square foot (BTU/h·ft²) value by 0.000278.
Can I reverse the conversion?
Yes. 1 BTU per second per square foot (BTU/s·ft²) = 3599.992392 BTUs per hour per square foot (BTU/h·ft²).
Is this BTU per hour per square foot (BTU/h·ft²) to BTU per second per square foot (BTU/s·ft²) conversion accurate for engineering use?
Yes. The conversion uses a standardized conversion factor suitable for engineering calculations, technical analysis, and professional reference.
Can this conversion be used for scientific or technical calculations?
Yes. This conversion is appropriate for scientific analysis, engineering calculations, simulations, and technical documentation where unit consistency is required.
By applying the conversion factor shown above, you can convert BTU per hour per square foot (BTU/h·ft²) to BTU per second per square foot (BTU/s·ft²) for insulation analysis, thermal testing, and energy performance evaluation.
Need more pair pages?
Browse all Convert Heat Flux Density Units Online conversion pages