Convert thermal conductivity values between different units easily
Result: -
Heat moves — and how fast it moves through a material depends on thermal conductivity. From designing refrigerators and spacecraft to insulating buildings and manufacturing electronics, understanding heat transfer is essential for safety, comfort, and efficiency.
But different industries use different units to measure thermal conductivity, such as:
Watt per meter-Kelvin (W/m·K) — International standard
BTU per hour-foot-Fahrenheit (BTU/hr·ft·°F) — Common in U.S. construction & HVAC
Calorie per second-centimeter-Celsius (cal/s·cm·°C) — Scientific heat transfer applications
The Thermal Conductivity Converter by AlllinTools simplifies conversions between all major units, ensuring that engineers, architects, and researchers always get perfect accuracy.
Heat transfer drives innovation — this tool provides the numbers behind it.
Thermal conductivity (k) measures how well a material conducts heat.
High conductivity → heat travels fast
Low conductivity → heat travels slowly (great insulator)
Example:
Metals: 🔥 High thermal conductivity
Wool, foam, insulation: ❄ Low thermal conductivity
Formula used in engineering:
q = (k × A × ΔT) / d
Where:
q = heat transfer rate
k = thermal conductivity
A = area
ΔT = temperature difference
d = thickness
Better understanding → better temperature control.
| Field | Typical Units |
|---|---|
| HVAC & home insulation | BTU/hr·ft·°F |
| Global engineering | W/m·K |
| Scientific heat transfer | cal/s·cm·°C |
| Electronics & semiconductors | W/cm·K |
Wrong conversion can cause:
❌ Overheating in electronics
❌ Poor building insulation → energy waste
❌ Industrial machinery failure
❌ Incorrect safety planning
❌ Excess operational costs
Precision is necessary — especially where heat impacts safety.
| Material | Conductivity (W/m·K) | Classification |
|---|---|---|
| Copper | ~400 | Excellent conductor |
| Aluminum | ~205 | Strong conductor |
| Concrete | ~1.7 | Medium conductor |
| Glass | ~1 | Medium conductor |
| Wood | ~0.1–0.2 | Insulator |
| Mineral wool insulation | ~0.04 | Strong insulator |
| Air | ~0.024 | Very low conductivity |
📌 Between SI and Imperial
1 W/m·K = 0.577789 BTU/hr·ft·°F
1 BTU/hr·ft·°F = 1.730735 W/m·K
📌 Scientific conversion
1 cal/s·cm·°C ≈ 418.4 W/m·K
Example:
Material rated 0.5 W/m·K
→ ≈ 0.289 BTU/hr·ft·°F
AlllinTools handles these calculations instantly and accurately.
🏠 Construction & Insulation Design
Regulate indoor comfort and reduce energy bills
🔧 Manufacturing & Industrial Safety
Maintain safe equipment temperatures
📱 Electronics & Semiconductor Cooling
Thermal pads & heat sinks rely on tested conductivity
🛰 Aerospace Engineering
Thermal control protects spacecraft
🍺 Food & Cold Storage — Packaging insulation maintains product quality
🥽 Refrigeration & HVAC — Performance depends on heat transfer materials
Heat control = efficiency + reliability.
✔ Civil engineers
✔ HVAC designers
✔ Material scientists
✔ Product engineers
✔ Automotive cooling specialists
✔ Electronics thermal designers
✔ Research students and educators
✔ Energy consultants
✔ Sustainability-focused businesses
Heat affects everyone — especially professionals.
✔ Converts instantly between all major units
✔ Perfect for field decisions and lab research
✔ Highly accurate scientific constants
✔ Works offline-friendly and mobile-ready
✔ 100% free with no sign-in required
✔ Trusted by international industries and universities
Precision at scale — and simplicity for everyone.
🔐 No tracking
🚫 No data logged
🛑 No account setup
✔ Safe for confidential industrial work
Trust is built on protection of user information.
Thermal conductivity influences energy conservation, HVAC power consumption, operational carbon footprint, and global sustainability efforts.
Better materials → greener planet.
Always measure at controlled temperature (common: 25°C)
Select material based on operating environment
Consider moisture — water increases conductivity
Right thermal choice = better product lifetime and performance.
Thermal conductivity ensures safe and efficient design across industries. The Free Thermal Conductivity Converter by AlllinTools transforms complex heat transfer calculations into instant, accurate results — empowering engineers, researchers, manufacturers, and energy professionals.
Use this tool to:
✔ Improve thermal safety
✔ Reduce energy waste
✔ Design better cooling systems
✔ Build stronger infrastructure
✔ Innovate with high-efficiency materials
Where heat goes — engineering follows.
🔥 Convert thermal conductivity instantly:
✨ Thermal Unit Tool – Only on AlllinTools.com