Single Conversion
Factor: 1 kW = 3412.141633 BTU/hEnter non‑negative power in kW.
BTU per hour
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Batch & Export
Compare scenarios| kW | BTU/h | Decimals | Remove |
|---|---|---|---|
Tip: edit any kW value or decimals; results update.
Example Data Table
Typical cooling capacities for common scenarios, calculated using the same factor.
| Application | Power (kW) | Capacity (BTU/h) |
|---|---|---|
| Small room AC | 0.8 | |
| Bedroom AC | 1.2 | |
| Living room AC | 2.5 | |
| Workshop unit | 3.5 | |
| Small rooftop | 5 |
Quick Reference: kW → BTU per Hour
| kW | BTU/h |
|---|---|
| 0.25 | |
| 0.5 | |
| 0.75 | |
| 1 | |
| 1.5 | |
| 2 | |
| 2.5 | |
| 3 | |
| 3.5 | |
| 5 | |
| 7.5 | |
| 10 |
Reverse Quick Reference: BTU per Hour → kW
| BTU/h | kW |
|---|---|
Formula Used
The conversion from kilowatts to BTU per hour uses the thermochemical constant:
BTU/h = kW × 3412.141633
- 1 kW is exactly 1000 J/s.
- 1 BTU (IT) ≈ 1055.05585262 J.
- Combining gives 1 kW ≈ 3412.141633 BTU/h.
How to Use This Converter
- Enter a kilowatt value in the input field.
- Choose your preferred decimal places for rounding.
- Toggle thousands separators for easier reading.
- See the BTU/h result update immediately.
- Click “Add to table” to store the line in batch.
- Download the batch as CSV or PDF when ready.
Frequently Asked Questions
BTU per hour is common in HVAC sizing, especially in North America, and many equipment nameplates and catalogs are expressed in BTU/h.
It uses the International Table BTU for compatibility with HVAC references, giving the factor 1 kW ≈ 3412.141633 BTU/h.
Yes—divide BTU/h by 3412.141633 to get kW. For example, 12,000 BTU/h ≈ 3.52 kW.
Two decimals are typical for HVAC selections. Increase precision for engineering analysis, decrease for quick estimates or presentations.
No. Separators only change how numbers look. Calculations always use full‑precision internal values.
Use the batch table. Add blank rows, paste kW values, adjust decimals, and export the assembled table to CSV or PDF.
All calculations are provided “as is” without warranty.