kW to BTU/hr Calculator
Convert kilowatts (kW) to BTU per hour (BTU/hr) instantly using the standard conversion: 1 kW = 3412.142 BTU/hr.
Input
Results
Note: TR shown is a quick HVAC reference using 1 TR ≈ 12,000 BTU/hr.
How to Convert kW to BTU/hr
Enter the power in kilowatts (kW). The calculator multiplies your value by the standard conversion factor 3412.142 to produce BTU/hr.
Formula
BTU/hr = kW × 3412.142
This is a power conversion (rate of energy transfer). In HVAC, BTU/hr (or BTUH) is commonly used to express heating or cooling capacity.
Example
If your equipment is rated at 5 kW, then: BTU/hr = 5 × 3412.142 = 17,060.71 BTU/hr.
FAQ
Is BTUH the same as BTU/hr?
Yes. BTUH is a common shorthand for BTU/hr.
Why do HVAC specs use BTU/hr?
Many HVAC catalogs use BTU/hr to describe heating/cooling capacity because it’s widely used in US/imperial practice.
What is TR and why is it shown?
TR (ton of refrigeration) is another HVAC unit. As a quick reference, 1 TR ≈ 12,000 BTU/hr.
Does this conversion depend on voltage or power factor?
No. kW to BTU/hr is a direct unit conversion. Voltage/PF matter when converting kW ↔ amps.
About This Tool
This tool is for quick conversions between electrical power (kW) and thermal power (BTU/hr). Use it for preliminary sizing and checks, and verify final selections using project standards and manufacturer data.
References
- Conversion factor: 1 kW = 3412.142 BTU/hr
- Formula: BTU/hr = kW × 3412.142
- BTU/hr is commonly used for heating/cooling capacity (HVAC).