Convert btu (it)/hour/square foot to btu (it)/second/square foot
Btu (IT)/Hour/Square Foot
The British thermal unit (IT) per hour per square foot (Btu/(h·ft²)) equals approximately 3.155 W/m² and is the most common imperial unit of heat flux in North American HVAC and building engineering. It is used for heat loss calculations, U-values, and thermal performance ratings of building envelopes.
Btu (IT)/Second/Square Foot
The British thermal unit (IT) per second per square foot (Btu/(s·ft²)) equals approximately 11,356 W/m². It is an imperial unit used for high-intensity heat fluxes such as those encountered in rocket nozzles, re-entry vehicles, and high-power industrial burners in North American engineering.
Btu (IT)/Hour/Square Foot to Btu (IT)/Second/Square Foot conversion table
| Btu (IT)/Hour/Square Foot | Btu (IT)/Second/Square Foot | Btu (IT)/Second/Square Foot | Btu (IT)/Hour/Square Foot |
|---|---|---|---|
| 1 | 0.0002778 | 1 | 3600 |
| 2 | 0.0005556 | 2 | 7200 |
| 3 | 0.0008333 | 3 | 10800 |
| 5 | 0.00138889 | 5 | 18000 |
| 10 | 0.00277778 | 10 | 36000 |
| 20 | 0.00555556 | 20 | 72000 |
| 25 | 0.00694444 | 25 | 90000 |
| 50 | 0.0138889 | 50 | 180000 |
| 100 | 0.0277778 | 100 | 360000 |
| 250 | 0.0694444 | 250 | 900000 |
| 500 | 0.138889 | 500 | 1.8E+06 |
| 1000 | 0.277778 | 1000 | 3.6E+06 |
How to convert Btu (IT)/Hour/Square Foot to Btu (IT)/Second/Square Foot
1 Btu/(h·ft²) = 0.0002778 Btu/(s·ft²). To convert any value, multiply it by 0.0002778. For example, 25 Btu/(h·ft²) = 0.00694444 Btu/(s·ft²).
Frequently asked questions
- How many Btu/(s·ft²) are there in one Btu/(h·ft²)?
- One Btu/(h·ft²) is equal to 0.0002778 Btu/(s·ft²).
- How do you convert Btu (IT)/Hour/Square Foot to Btu (IT)/Second/Square Foot?
- Multiply the value in Btu (IT)/Hour/Square Foot by 0.0002778 to get the result in Btu (IT)/Second/Square Foot.
- How much is 25 Btu/(h·ft²) in Btu/(s·ft²)?
- 25 Btu/(h·ft²) is equal to 0.00694444 Btu/(s·ft²).
- How do you convert Btu (IT)/Second/Square Foot back to Btu (IT)/Hour/Square Foot?
- Divide by the same factor: multiply the value in Btu (IT)/Second/Square Foot by 3600 to get Btu (IT)/Hour/Square Foot.