Convert thermal resistance between kelvin/watt, °C/W and °F·h/BTU.
🚧
Thermal Resistance Converter
Heat • 5 units
🚧
Enter a value to convert
Result
—
—
Conversion Factor
—
In K/W
—
Visual Comparison
All Units
How to Use the Thermal Resistance Converter
Enter a value — type any number. Invalid text and symbols are blocked automatically.
Select From and To units — choose the units to convert between.
Read the animated result — the converted value, factor, and full reference table update instantly.
Use Swap (⇄) — reverse the conversion in one click.
Why Use This Thermal Resistance Converter
🎯
Accurate Standards
Built on internationally recognised SI and standards-body conversion factors for dependable results.
⚡
Instant & Animated
Results update live as you type, with a clear visual breakdown across every unit at once.
🔒
100% Private
Everything runs in your browser — no account, no uploads, nothing leaves your device.
Common Thermal Resistance Converter Values
Quick reference — 1 Kelvin/Watt (K/W) is equal to:
Degree °C/Watt
°C/W
1
Kelvin/Kilowatt
K/kW
1,000
Kelvin/Milliwatt
K/mW
0.001
°F·hour/BTU
°F·h/BTU
0.527527993
Thermal Resistance Converter FAQ
Thermal resistance is how strongly an object resists heat flow, measured in kelvin per watt (K/W). It is the inverse of thermal conductance. Higher K/W means better insulation.
K/W is the absolute resistance of a specific object. The construction R-value is per unit area (m²·K/W or ft²·°F·h/BTU). This tool converts absolute thermal resistance units.