Power and Energy
kWtoBTU/hr
Convert kilowatts (kW) to British thermal units per hour (BTU/hr).
Factor1 kW = 3412.142 BTU/hr
Converter
kW
Accepts numbers or expressions, e.g. 150 + 14.7
Result
BTU/hr
Rendered to 6 significant figures.
Formula
Formula
BTU/hr = kW × 3412.142
Multiply any value in kilowatts by 3412.142 to obtain the value in British thermal units per hour.
Worked example
Convert 10 kW to BTU/hr.
- 01Start with 10 kW.
- 02Multiply by the conversion factor: 10 × 3412.142 = 34121.4 BTU/hr.
Result10 kW = 34121.4 BTU/hr
Conversion table
| kW | BTU/hr |
|---|---|
| 1 | 3412.1 |
| 2 | 6824.3 |
| 5 | 17061 |
| 10 | 34121 |
| 20 | 68243 |
| 50 | 1.7061e+5 |
| 100 | 3.4121e+5 |
| 200 | 6.8243e+5 |
| 500 | 1.7061e+6 |
| 1000 | 3.4121e+6 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from kW to BTU/hr?
1 kW equals 3412.142 BTU/hr. To convert, multiply the value in kilowatts by 3412.142.
How do I convert 1 kW to BTU/hr?
1 kW = 3412.14 BTU/hr. For any value, multiply by 3412.142.
How do I convert BTU/hr back to kW?
Divide by the same factor — or equivalently, multiply by 0.0002930711. So 1 BTU/hr = 0.000293071 kW.
When would I need to convert kilowatt to British thermal unit per hour?
Power conversions are common when comparing motor ratings (often kW or hp), thermal duty (BTU/hr or kW), and utility consumption in mixed-unit projects.
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).
Heat exchanger duty context
Heat duty (Q) — the rate of heat transfer — is commonly expressed in kW or BTU/h. It is the starting point for sizing any heat exchanger: Q = ṁ × Cp × ΔT for sensible heat transfer.
Once the duty is known, the required heat transfer area depends on the LMTD and the overall U-value: A = Q / (U × LMTD).