What is being measured?
Thermal conductivity is a material heat-transfer quantity. It does not by itself describe the thermal resistance of a particular assembly.
Temperature denominators are intervals. Conductivity depends on material and conditions.
Meaning of cal th/(cm·s·°C)
Thermochemical calories per centimeter second Celsius degree uses the symbol cal th/(cm·s·°C) in this library and measures thermal conductivity. Under the stated reference convention, 1 cal th/(cm·s·°C) = approximately 418.4 W/(m·K). This equivalence changes how a known value is written. It does not increase measurement accuracy or establish whether a measurement is appropriate to a real application.
Conversion method
Multiply the value by the source factor (418.4), then divide by the target factor (1). The factor ratio expresses the same thermal conductivity measurement in the other unit.
Worked example
For a known value of 10 cal th/(cm·s·°C), the reference conversion gives 4184 W/(m·K). Converting that result back gives approximately 10 cal th/(cm·s·°C). This reverse check helps catch a reversed factor, but matching round-trip arithmetic alone does not independently verify a source definition.
Common reference values
| Input (cal th/(cm·s·°C)) | Reference equivalent (W/(m·K)) |
|---|---|
| 1 | 418.4 |
| 5 | 2092 |
| 10 | 4184 |
| 25 | 10460 |
| 50 | 20920 |
| 100 | 41840 |
Compare one cal th/(cm·s·°C) with other units
| Target unit | Equivalent of 1 cal th/(cm·s·°C) | Definition guide |
|---|---|---|
| Watts per meter kelvin (W/(m·K)) | 418.4 | Read definition |
| Milliwatts per meter kelvin (mW/(m·K)) | 418400 | Read definition |
| Watts per centimeter kelvin (W/(cm·K)) | 4.184 | Read definition |
Precision and common mistakes
- Keep the source and target quantity consistent. A matching symbol is not enough to establish a compatible definition.
- Record the original measurement precision. Showing twelve significant digits in a table does not make a rounded input more precise.
- Check symbol capitalization, prefixes and any regional convention in the source. Use the displayed unit definition rather than a similarly named unit.
- Factors involving repeating fractions or π use finite numerical precision. Round the final answer to the precision justified by your input.
Use a working converter
- Thermal conductivity converter
- Thermochemical calories per centimeter second Celsius degree to Watts per meter kelvin converter
- Thermochemical calories per centimeter second Celsius degree to Milliwatts per meter kelvin converter
- Thermochemical calories per centimeter second Celsius degree to Watts per centimeter kelvin converter
Source and verification scope
Examples and tables are computed from the versioned unit definitions used by the linked converters. The source access dates appear below. Computandum is independent of the cited organizations; a citation does not mean that a publisher endorses this page or an actual project.