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    Specific Heat Capacity Conversion

    18 Kilojoule/Kilogram-Kelvin to BTU/Pound-°F

    Quick answer

    18 Kilojoule/Kilogram-Kelvin (kJ/(kg·K)) equals

    4.299226 BTU/(lb·°F)

    To convert 18 Kilojoule/Kilogram-Kelvins to BTU/Pound-°Fs, multiply by 0.2388458966. Therefore, 18 Kilojoule/Kilogram-Kelvin (kJ/(kg·K)) equals 4.299226 BTU/Pound-°F (BTU/(lb·°F)).

    Formula: BTU/(lb·°F) = kJ/(kg·K) × 0.2388458966. Calculation: 18 × 0.2388458966 = 4.299226 BTU/(lb·°F).

    Convert Kilojoule/Kilogram-Kelvin (kJ/(kg·K)) to BTU/Pound-°F (BTU/(lb·°F)) online with our free unit converter. In specific heat capacity, 1 kJ/(kg·K) = 0.238846 BTU/(lb·°F). Explore step-by-step conversion steps, mathematical formulas, and quick conversion reference tables below.

    Worked example: converting Kilojoule/Kilogram-Kelvin to BTU/Pound-°F

    1. Step 1 — start with the formula. BTU/(lb·°F) = kJ/(kg·K) × 0.2388458966
    2. Step 2 — substitute your figure. 18 kJ/(kg·K) × 0.2388458966
    3. Step 3 — read the result. 18 kJ/(kg·K) = 4.299226 BTU/(lb·°F)
    4. Step 4 — check it in reverse. kJ/(kg·K) = BTU/(lb·°F) × 4.1868 returns 18 kJ/(kg·K), which matches the figure you started with.

    Specific Heat Capacity Converter

    6 units available

    Decimals:
    4.299226

    18 kJ/(kg·K) = 4.299226 BTU/(lb·°F)

    Formula:

    BTU/(lb·°F) = kJ/(kg·K) × 0.2388458966

    With your value: 18 kJ/(kg·K) = 4.29922614 BTU/(lb·°F)

    Other Kilojoule/Kilogram-Kelvin to BTU/Pound-°F conversions

    13 kJ/(kg·K) to BTU/(lb·°F)14 kJ/(kg·K) to BTU/(lb·°F)15 kJ/(kg·K) to BTU/(lb·°F)16 kJ/(kg·K) to BTU/(lb·°F)20 kJ/(kg·K) to BTU/(lb·°F)21 kJ/(kg·K) to BTU/(lb·°F)24 kJ/(kg·K) to BTU/(lb·°F)Full Kilojoule/Kilogram-Kelvin to BTU/Pound-°F converter

    Kilojoule/Kilogram-Kelvin to BTU/Pound-°F Conversion Table

    Kilojoule/Kilogram-Kelvin (kJ/(kg·K))BTU/Pound-°F (BTU/(lb·°F))
    0.50.119423
    10.238846
    20.477692
    51.194229
    102.388459
    153.582688
    204.776918
    255.971147
    5011.942295
    10023.88459
    25059.711474
    500119.422948
    1000238.845897

    BTU/Pound-°F to Kilojoule/Kilogram-Kelvin Conversion Table

    BTU/Pound-°F (BTU/(lb·°F))Kilojoule/Kilogram-Kelvin (kJ/(kg·K))
    0.52.0934
    14.1868
    28.3736
    520.934
    1041.868
    1562.802
    2083.736
    25104.67
    50209.34
    100418.68
    2501,046.7
    5002,093.4
    10004,186.8

    Where these values come from

    Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

    Kilojoule/Kilogram-Kelvin (kJ/(kg·K))

    Specific Heat Capacity

    Exact conversion

    Derived quantity, joule per kilogram-kelvin (J/(kg·K)). Calorie- and BTU-based units use the thermochemical calorie (4.184 J exactly) and the International Table BTU.

    Source: NIST Special Publication 811, Guide for the Use of the International System of Units

    National Institute of Standards and Technology (US) · Reviewed 2026-07-01

    BTU/Pound-°F (BTU/(lb·°F))

    Specific Heat Capacity

    Exact conversion

    Derived quantity, joule per kilogram-kelvin (J/(kg·K)). Calorie- and BTU-based units use the thermochemical calorie (4.184 J exactly) and the International Table BTU.

    Source: NIST Special Publication 811, Guide for the Use of the International System of Units

    National Institute of Standards and Technology (US) · Reviewed 2026-07-01

    How to Convert Kilojoule/Kilogram-Kelvin to BTU/Pound-°F

    To convert from Kilojoule/Kilogram-Kelvin (kJ/(kg·K)) to BTU/Pound-°F (BTU/(lb·°F)), multiply the value by 0.2388458966.

    Formula: BTU/(lb·°F) = kJ/(kg·K) × 0.2388458966

    Reverse: kJ/(kg·K) = BTU/(lb·°F) × 4.1868

    Step-by-Step Example

    1. Start with your value in Kilojoule/Kilogram-Kelvin. For example: 5 kJ/(kg·K)
    2. Multiply by the conversion factor: 5 x 0.2388458966
    3. The result is: 1.194229 BTU/(lb·°F)

    Kilojoule/Kilogram-Kelvin and BTU/Pound-°F Relationship

    This conversion bridges the Metric (SI) and US Customary / Imperial measurement systems, commonly required when translating scientific data, international engineering specifications, or trade standards. Since 1 Kilojoule/Kilogram-Kelvin represents a fraction of a BTU/Pound-°F (1 BTU/Pound-°F ≈ 4.1868 Kilojoule/Kilogram-Kelvins), the BTU/Pound-°F is the larger measurement interval. Understanding the relationship between Kilojoule/Kilogram-Kelvin and BTU/Pound-°F is essential for accurate calculations in physics, engineering, commerce, and daily applications.

    About Kilojoule/Kilogram-Kelvin

    The Kilojoule/Kilogram-Kelvin (symbol: kJ/(kg·K)) is a recognized unit in the Metric (SI) measurement framework, utilized within specific heat capacity applications for precision and standardized data representation.

    Common uses of Kilojoule/Kilogram-Kelvin: specific heat capacity calculations, engineering and science, education.

    About BTU/Pound-°F

    The BTU/Pound-°F (symbol: BTU/(lb·°F)) is a recognized unit in the US Customary / Imperial measurement framework, utilized within specific heat capacity applications for precision and standardized data representation.

    Common uses of BTU/Pound-°F: specific heat capacity calculations, engineering and science, education.

    Frequently Asked Questions

    What is 18 Kilojoule/Kilogram-Kelvin in BTU/Pound-°F?
    18 Kilojoule/Kilogram-Kelvin equals 4.299226 BTU/Pound-°F.
    How many BTU/Pound-°Fs are in 1 Kilojoule/Kilogram-Kelvin?
    There are exactly 0.2388458966 BTU/Pound-°Fs in 1 Kilojoule/Kilogram-Kelvin. This means the conversion factor from Kilojoule/Kilogram-Kelvin to BTU/Pound-°F is 0.2388458966.
    What is the formula to convert Kilojoule/Kilogram-Kelvin to BTU/Pound-°F?
    The formula to convert Kilojoule/Kilogram-Kelvin to BTU/Pound-°F is: BTU/(lb·°F) = kJ/(kg·K) × 0.2388458966. For example, to convert 10 Kilojoule/Kilogram-Kelvins to BTU/Pound-°Fs, you would multiply 10 by 0.2388458966.
    What is a Kilojoule/Kilogram-Kelvin?
    The Kilojoule/Kilogram-Kelvin (symbol: kJ/(kg·K)) is a recognized unit in the Metric (SI) measurement framework, utilized within specific heat capacity applications for precision and standardized data representation.
    What is a BTU/Pound-°F?
    The BTU/Pound-°F (symbol: BTU/(lb·°F)) is a recognized unit in the US Customary / Imperial measurement framework, utilized within specific heat capacity applications for precision and standardized data representation.
    What are the common uses of Kilojoule/Kilogram-Kelvin?
    The Kilojoule/Kilogram-Kelvin is commonly used in specific heat capacity calculations, engineering and science, education.

    Related Specific Heat Capacity Conversions

    Joule/Kilogram-Kelvin → BTU/Pound-°FKilojoule/Kilogram-Kelvin → Joule/Kilogram-KelvinKilojoule/Kilogram-Kelvin → Joule/Gram-°CKilojoule/Kilogram-Kelvin → Calorie/Gram-°CKilojoule/Kilogram-Kelvin → Kilocalorie/Kilogram-°CJoule/Gram-°C → BTU/Pound-°FCalorie/Gram-°C → BTU/Pound-°FKilocalorie/Kilogram-°C → BTU/Pound-°FJoule/Kilogram-Kelvin → Kilojoule/Kilogram-Kelvin

    Cite this page

    UnitConvertLab. (2026). 18 Kilojoule/Kilogram-Kelvin to BTU/Pound-°F. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/18-kilojoule_per_kg_k-to-btu_per_lb_f