Convert Kilojoules per Kilogram-Kelvin to BTU per Pound-Rankine
Instantly convert Kilojoules per Kilogram-Kelvin (kJ/(kg·K)) to BTU per Pound-Rankine (BTU/(lb·°R)) with our free online calculator.
Formula: kJ/(kg·K) to BTU/(lb·°R) — multiply by 0.238846
Reference Table
| Kilojoules per Kilogram-Kelvin (kJ/(kg·K)) | BTU per Pound-Rankine (BTU/(lb·°R)) |
|---|---|
| 1 | 0.238846 |
| 5 | 1.19423 |
| 10 | 2.38846 |
| 25 | 5.97115 |
| 50 | 11.9423 |
| 100 | 23.8846 |
How to Convert Kilojoules per Kilogram-Kelvin to BTU per Pound-Rankine
Formula
To convert Kilojoules per Kilogram-Kelvin (kJ/(kg·K)) to BTU per Pound-Rankine (BTU/(lb·°R)): multiply by 0.238846
Step-by-Step
- Start with your value in Kilojoules per Kilogram-Kelvin (kJ/(kg·K)).
- Multiply by 0.238846 to perform the conversion.
- The result is your value expressed in BTU per Pound-Rankine (BTU/(lb·°R)).
Conversion Factor
1 kJ/(kg·K) = 0.238846 BTU/(lb·°R)
Reverse Factor
1 BTU/(lb·°R) = 4.1868 kJ/(kg·K)
Worked Example
Convert 25 Kilojoules per Kilogram-Kelvin to BTU per Pound-Rankine: 25 kJ/(kg·K) = 5.97115 BTU/(lb·°R)
About Kilojoule per Kilogram-Kelvin (kJ/(kg·K))
A metric specific-entropy unit equal to 1,000 J/(kg·K). Most international engineering steam tables, refrigerant property tables, and gas-turbine property charts report entropy in kJ/(kg·K). Saturated water entropy at 100°C is ~1.306 kJ/(kg·K); saturated steam ~7.355 kJ/(kg·K). T-s diagrams use kJ/(kg·K) on the horizontal axis.
About BTU per Pound-Rankine (BTU/(lb·°R))
An imperial specific-entropy unit dominant in US steam tables and thermodynamics textbooks. 1 BTU/(lb·°R) ≈ 4,186.8 J/(kg·K) — numerically identical to the J/(kg·K) value (since BTU/lb/°R and kJ/kg/K convert with a near-unity factor). US-edition NIST steam tables and ASME thermodynamic references list entropy in BTU/(lb·°R).
Quick Facts
- 1 Kilojoule per Kilogram-Kelvin equals 0.238846 BTU per Pound-Rankine
- 1 BTU per Pound-Rankine equals 4.1868 Kilojoules per Kilogram-Kelvin
- Kilojoule per Kilogram-Kelvin is a unit of specific entropy
- BTU per Pound-Rankine is a unit of specific entropy
- This conversion is commonly used in turbine design, refrigeration analysis, and power plant engineering
- The Kilojoule per Kilogram-Kelvin belongs to the metric system
- The BTU per Pound-Rankine belongs to the imperial system
Common Kilojoule per Kilogram-Kelvin to BTU per Pound-Rankine Conversions
| Kilojoules per Kilogram-Kelvin (kJ/(kg·K)) | BTU per Pound-Rankine (BTU/(lb·°R)) |
|---|---|
| 0.01 | 0.00238846 |
| 0.1 | 0.0238846 |
| 0.25 | 0.0597115 |
| 0.5 | 0.119423 |
| 1 | 0.238846 |
| 2 | 0.477692 |
| 3 | 0.716538 |
| 5 | 1.19423 |
| 10 | 2.38846 |
| 15 | 3.58269 |
| 20 | 4.77692 |
| 25 | 5.97115 |
| 50 | 11.9423 |
| 75 | 17.9134 |
| 100 | 23.8846 |
| 250 | 59.7115 |
| 500 | 119.423 |
| 1000 | 238.846 |
| 5000 | 1194.23 |
| 10000 | 2388.46 |
Understanding Kilojoules per Kilogram-Kelvin
The Kilojoule per Kilogram-Kelvin (symbol: kJ/(kg·K)) is a unit of specific entropy. A metric specific-entropy unit equal to 1,000 J/(kg·K). Most international engineering steam tables, refrigerant property tables, and gas-turbine property charts report entropy in kJ/(kg·K). Saturated water entropy at 100°C is ~1.306 kJ/(kg·K); saturated steam ~7.355 kJ/(kg·K). T-s diagrams use kJ/(kg·K) on the horizontal axis.
It belongs to the metric measurement system.
Kilojoules per Kilogram-Kelvin are commonly used in turbine design, refrigeration analysis, and power plant engineering.
Understanding BTU per Pound-Rankine
The BTU per Pound-Rankine (symbol: BTU/(lb·°R)) is a unit of specific entropy. An imperial specific-entropy unit dominant in US steam tables and thermodynamics textbooks. 1 BTU/(lb·°R) ≈ 4,186.8 J/(kg·K) — numerically identical to the J/(kg·K) value (since BTU/lb/°R and kJ/kg/K convert with a near-unity factor). US-edition NIST steam tables and ASME thermodynamic references list entropy in BTU/(lb·°R).
It belongs to the imperial measurement system.
BTU per Pound-Rankine are commonly used in turbine design, refrigeration analysis, and power plant engineering.
Why Convert Kilojoules per Kilogram-Kelvin to BTU per Pound-Rankine?
Converting between Kilojoules per Kilogram-Kelvin and BTU per Pound-Rankine is a frequent requirement for engineers, scientists, and students working with specific entropy values. Different industries and regions favour different unit systems, so having a dependable conversion tool saves time and prevents errors in technical calculations. Whether you are verifying a specification sheet, cross-checking simulation results, or preparing a report for an international audience, accurate specific entropy conversion is essential.
Frequently Asked Questions
How do I convert Kilojoules per Kilogram-Kelvin to BTU per Pound-Rankine?
A metric specific-entropy unit equal to 1,000 J/(kg·K). To convert Kilojoules per Kilogram-Kelvin to BTU per Pound-Rankine, multiply by 0.238846. For example, 25 kJ/(kg·K) equals 5.97115 BTU/(lb·°R).
How many BTU per Pound-Rankine are in 1 Kilojoule per Kilogram-Kelvin?
There are 0.238846 BTU per Pound-Rankine in 1 Kilojoule per Kilogram-Kelvin.
How many Kilojoules per Kilogram-Kelvin are in 1 BTU per Pound-Rankine?
There are 4.1868 Kilojoules per Kilogram-Kelvin in 1 BTU per Pound-Rankine.
What is the formula for Kilojoule per Kilogram-Kelvin to BTU per Pound-Rankine conversion?
The formula is: multiply by 0.238846. This means 1 kJ/(kg·K) = 0.238846 BTU/(lb·°R).
Is a Kilojoule per Kilogram-Kelvin bigger than a BTU per Pound-Rankine?
Yes. One Kilojoule per Kilogram-Kelvin is larger than one BTU per Pound-Rankine because 1 kJ/(kg·K) equals 0.238846 BTU/(lb·°R), which is less than 1.
When do you need to convert between Kilojoules per Kilogram-Kelvin and BTU per Pound-Rankine?
An imperial specific-entropy unit dominant in US steam tables and thermodynamics textbooks. Kilojoule per Kilogram-Kelvin and BTU per Pound-Rankine are both specific entropy units, so conversion comes up whenever one source of information uses one unit and another uses the other — a classic cross-reference challenge in engineering, trade, travel, and everyday life.