BTU per pound degree Fahrenheit to Kilojoule per kilogram kelvin Converter
1 BTU per pound degree Fahrenheit is exactly 4.1868 kilojoules per kilogram kelvin. Convert BTUs per pound degree Fahrenheit (BTU/(lb·°F)) to kilojoules per kilogram kelvin (kJ/(kg·K)) below: type a value and the result updates as you type.
BTU/(lb·°F) to kJ/(kg·K) calculator
Result
BTU per pound degree Fahrenheit to Kilojoule per kilogram kelvin conversion
1 BTU/(lb·°F) = 4.1868 kJ/(kg·K)one BTU per pound degree Fahrenheit in kilojoules per kilogram kelvin
1 kJ/(kg·K) ≈ 0.2388458966 BTU/(lb·°F)one kilojoule per kilogram kelvin in BTUs per pound degree Fahrenheit
BTU per pound degree Fahrenheit (BTU/(lb·°F)): US unit of specific heat capacity based on the BTU (IT): exactly 4186.8 J/(kg·K).
Kilojoule per kilogram kelvin (kJ/(kg·K)): Exactly 1000 J/(kg·K), the same as one joule per gram per degree Celsius. Water is about 4.18 kJ/(kg·K).
Source:BTU per pound degree Fahrenheit: NIST Special Publication 811 (2008), Appendix B.8; Kilojoule per kilogram kelvin: SI Brochure, 9th edition (BIPM, 2019)
How to convert BTUs per pound degree Fahrenheit to kilojoules per kilogram kelvin
To convert BTUs per pound degree Fahrenheit to kilojoules per kilogram kelvin, multiply the number of BTUs per pound degree Fahrenheit by 4.1868.
Formula
kJ/(kg·K) = BTU/(lb·°F) × 4.1868
Examples
- 5 BTU/(lb·°F) = 5 × 4.1868 = 20.934 kJ/(kg·K)
- 25 BTU/(lb·°F) = 25 × 4.1868 = 104.67 kJ/(kg·K)
- 100 BTU/(lb·°F) = 100 × 4.1868 = 418.68 kJ/(kg·K)
BTU per pound degree Fahrenheit to Kilojoule per kilogram kelvin conversion table
| BTU per pound degree Fahrenheit (BTU/(lb·°F)) | Kilojoule per kilogram kelvin (kJ/(kg·K)) |
|---|---|
| 0.1 BTU/(lb·°F) | 0.41868 kJ/(kg·K) |
| 0.5 BTU/(lb·°F) | 2.0934 kJ/(kg·K) |
| 1 BTU/(lb·°F) | 4.1868 kJ/(kg·K) |
| 2 BTU/(lb·°F) | 8.3736 kJ/(kg·K) |
| 3 BTU/(lb·°F) | 12.5604 kJ/(kg·K) |
| 5 BTU/(lb·°F) | 20.934 kJ/(kg·K) |
| 10 BTU/(lb·°F) | 41.868 kJ/(kg·K) |
| 20 BTU/(lb·°F) | 83.736 kJ/(kg·K) |
| 25 BTU/(lb·°F) | 104.67 kJ/(kg·K) |
| 50 BTU/(lb·°F) | 209.34 kJ/(kg·K) |
| 100 BTU/(lb·°F) | 418.68 kJ/(kg·K) |
| 250 BTU/(lb·°F) | 1046.7 kJ/(kg·K) |
| 500 BTU/(lb·°F) | 2093.4 kJ/(kg·K) |
| 1000 BTU/(lb·°F) | 4186.8 kJ/(kg·K) |
Values rounded to 10 significant digits where needed.
Frequently asked questions
- How many kilojoules per kilogram kelvin are in one BTU per pound degree Fahrenheit?
- One BTU per pound degree Fahrenheit is exactly 4.1868 kilojoules per kilogram kelvin.
- How do I convert kilojoules per kilogram kelvin to BTUs per pound degree Fahrenheit?
- To convert kilojoules per kilogram kelvin to BTUs per pound degree Fahrenheit, divide the number of kilojoules per kilogram kelvin by 4.1868. The formula is BTU/(lb·°F) = kJ/(kg·K) ÷ 4.1868.
- Is this conversion exact?
- Yes. Both units have exact definitions and the factor 4.1868 is exact. Displayed results are only rounded when they have many decimal places.
- Which is larger, a BTU per pound degree Fahrenheit or a kilojoule per kilogram kelvin?
- A BTU per pound degree Fahrenheit is 4.1868 times larger than a kilojoule per kilogram kelvin. In other words, a kilojoule per kilogram kelvin is about 0.2388458966 of a BTU per pound degree Fahrenheit.