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    Specific Heat Capacity Conversion

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

    Quick answer

    13 BTU/Pound-°F (BTU/(lb·°F)) equals

    54.4284 kJ/(kg·K)

    To convert 13 BTU/Pound-°Fs to Kilojoule/Kilogram-Kelvins, multiply by 4.1868. Therefore, 13 BTU/Pound-°F (BTU/(lb·°F)) equals 54.4284 Kilojoule/Kilogram-Kelvin (kJ/(kg·K)).

    Formula: kJ/(kg·K) = BTU/(lb·°F) × 4.1868. Calculation: 13 × 4.1868 = 54.4284 kJ/(kg·K).

    Convert BTU/Pound-°F (BTU/(lb·°F)) to Kilojoule/Kilogram-Kelvin (kJ/(kg·K)) online with our free unit converter. In specific heat capacity, 1 BTU/(lb·°F) = 4.1868 kJ/(kg·K). Explore step-by-step conversion steps, mathematical formulas, and quick conversion reference tables below.

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

    1. Step 1 — start with the formula. kJ/(kg·K) = BTU/(lb·°F) × 4.1868
    2. Step 2 — substitute your figure. 13 BTU/(lb·°F) × 4.1868
    3. Step 3 — read the result. 13 BTU/(lb·°F) = 54.4284 kJ/(kg·K)
    4. Step 4 — check it in reverse. BTU/(lb·°F) = kJ/(kg·K) × 0.2388458966 returns 13 BTU/(lb·°F), which matches the figure you started with.

    Specific Heat Capacity Converter

    6 units available

    Decimals:
    54.4284

    13 BTU/(lb·°F) = 54.4284 kJ/(kg·K)

    Formula:

    kJ/(kg·K) = BTU/(lb·°F) × 4.1868

    With your value: 13 BTU/(lb·°F) = 54.4284 kJ/(kg·K)

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

    9 BTU/(lb·°F) to kJ/(kg·K)10 BTU/(lb·°F) to kJ/(kg·K)11 BTU/(lb·°F) to kJ/(kg·K)12 BTU/(lb·°F) to kJ/(kg·K)14 BTU/(lb·°F) to kJ/(kg·K)15 BTU/(lb·°F) to kJ/(kg·K)16 BTU/(lb·°F) to kJ/(kg·K)Full BTU/Pound-°F to Kilojoule/Kilogram-Kelvin converter

    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

    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

    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.

    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

    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

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

    To convert from BTU/Pound-°F (BTU/(lb·°F)) to Kilojoule/Kilogram-Kelvin (kJ/(kg·K)), multiply the value by 4.1868.

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

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

    Step-by-Step Example

    1. Start with your value in BTU/Pound-°F. For example: 5 BTU/(lb·°F)
    2. Multiply by the conversion factor: 5 x 4.1868
    3. The result is: 20.934 kJ/(kg·K)

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

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

    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.

    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.

    Frequently Asked Questions

    What is 13 BTU/Pound-°F in Kilojoule/Kilogram-Kelvin?
    13 BTU/Pound-°F equals 54.4284 Kilojoule/Kilogram-Kelvin.
    How many Kilojoule/Kilogram-Kelvins are in 1 BTU/Pound-°F?
    There are exactly 4.1868 Kilojoule/Kilogram-Kelvins in 1 BTU/Pound-°F. This means the conversion factor from BTU/Pound-°F to Kilojoule/Kilogram-Kelvin is 4.1868.
    What is the formula to convert BTU/Pound-°F to Kilojoule/Kilogram-Kelvin?
    The formula to convert BTU/Pound-°F to Kilojoule/Kilogram-Kelvin is: kJ/(kg·K) = BTU/(lb·°F) × 4.1868. For example, to convert 10 BTU/Pound-°Fs to Kilojoule/Kilogram-Kelvins, you would multiply 10 by 4.1868.
    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 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 are the common uses of BTU/Pound-°F?
    The BTU/Pound-°F is commonly used in specific heat capacity calculations, engineering and science, education.

    Related Specific Heat Capacity Conversions

    Joule/Kilogram-Kelvin → Kilojoule/Kilogram-KelvinJoule/Gram-°C → Kilojoule/Kilogram-KelvinCalorie/Gram-°C → Kilojoule/Kilogram-KelvinKilocalorie/Kilogram-°C → Kilojoule/Kilogram-KelvinBTU/Pound-°F → Joule/Kilogram-KelvinBTU/Pound-°F → Joule/Gram-°CBTU/Pound-°F → Calorie/Gram-°CBTU/Pound-°F → Kilocalorie/Kilogram-°CJoule/Kilogram-Kelvin → Joule/Gram-°C

    Cite this page

    UnitConvertLab. (2026). 13 BTU/Pound-°F to Kilojoule/Kilogram-Kelvin. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/13-btu_per_lb_f-to-kilojoule_per_kg_k