Heat Transfer
kBTU/(hr·ft²)toW/cm²
Convert kilo-British thermal units per hour-square foot (kBTU/(hr·ft²)) to watts per square centimetre (W/cm²).
Factor1 kBTU/(hr·ft²) = 0.3154591 W/cm²
Converter
kBTU/(hr·ft²)
Accepts numbers or expressions, e.g. 150 + 14.7
Result
W/cm²
Rendered to 6 significant figures.
Formula
Formula
W/cm² = kBTU/(hr·ft²) × 0.3154591
Multiply any value in kilo-British thermal units per hour-square foot by 0.3154591 to obtain the value in watts per square centimetre.
Worked example
Convert 100 kBTU/(hr·ft²) to W/cm².
- 01Start with 100 kBTU/(hr·ft²).
- 02Multiply by the conversion factor: 100 × 0.3154591 = 31.5459 W/cm².
Result100 kBTU/(hr·ft²) = 31.5459 W/cm²
Conversion table
| kBTU/(hr·ft²) | W/cm² |
|---|---|
| 1 | 0.31546 |
| 2 | 0.63092 |
| 5 | 1.5773 |
| 10 | 3.1546 |
| 20 | 6.3092 |
| 50 | 15.773 |
| 100 | 31.546 |
| 200 | 63.092 |
| 500 | 157.73 |
| 1000 | 315.46 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from kBTU/(hr·ft²) to W/cm²?
1 kBTU/(hr·ft²) equals 0.3154591 W/cm². To convert, multiply the value in kilo-British thermal units per hour-square foot by 0.3154591.
How do I convert 1 kBTU/(hr·ft²) to W/cm²?
1 kBTU/(hr·ft²) = 0.315459 W/cm². For any value, multiply by 0.3154591.
How do I convert W/cm² back to kBTU/(hr·ft²)?
Divide by the same factor — or equivalently, multiply by 3.169983. So 1 W/cm² = 3.16998 kBTU/(hr·ft²).
When would I need to convert kilo-British thermal unit per hour-square foot to watt per square centimetre?
Heat-flux conversions between kBTU/(hr·ft²) and W/cm² appear in radiative-heat-transfer analysis, furnace and reactor design, electronics cooling, and solar-energy calculations. W/m² is the SI standard; BTU/(hr·ft²) and kcal/(hr·m²) appear in US and legacy European datasheets.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).
Related conversions
- W/cm² → kBTU/(hr·ft²)watt per square centimetre → kilo-British thermal unit per hour-square foot
- kBTU/(hr·ft²) → W/m²kilo-British thermal unit per hour-square foot → watt per square metre
- W/m² → kBTU/(hr·ft²)watt per square metre → kilo-British thermal unit per hour-square foot
- kBTU/(hr·ft²) → kW/m²kilo-British thermal unit per hour-square foot → kilowatt per square metre
- kW/m² → kBTU/(hr·ft²)kilowatt per square metre → kilo-British thermal unit per hour-square foot
- kBTU/(hr·ft²) → MW/m²kilo-British thermal unit per hour-square foot → megawatt per square metre