♨️ BTU/(lb·°F) to kJ/(kg·K) — BTU/(Pound·°F) to Kilojoule/(Kilogram·Kelvin) Converter

Convert specific heat capacity units — J/(kg·K), BTU/(lb·°F), cal/(g·°C) and more.

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Formula 1 BTU/(lb·°F) = 4.1868 kJ/(kg·K)
All BTU/(Pound·°F) conversions
UnitNameValue
J/(kg·K) Joule/(Kilogram·Kelvin) 4186.8
kJ/(kg·K) Kilojoule/(Kilogram·Kelvin) 4.1868
cal/(g·°C) Calorie/(Gram·°C) 1
kcal/(kg·°C) Kilocalorie/(Kilogram·°C) 1
Related Specific Heat conversions
J/(kg·K) → BTU/(lb·°F) BTU/(lb·°F) → J/(kg·K) kJ/(kg·K) → BTU/(lb·°F)

How to convert BTU/(Pound·°F) to Kilojoule/(Kilogram·Kelvin)

Multiply the number of BTU/(Pound·°F)s by 4.1868 to get Kilojoule/(Kilogram·Kelvin)s. Formula: kJ/(kg·K) = BTU/(lb·°F) × 4.1868. Example: 10 BTU/(lb·°F) × 4.1868 = 41.868 kJ/(kg·K). To reverse, divide Kilojoule/(Kilogram·Kelvin)s by 4.1868 to get BTU/(Pound·°F)s.

Worked examples

Example 1
1 BTU/(lb·°F) × 4.1868 = 4.1868 kJ/(kg·K)
1 BTU/(Pound·°F) equals 4.1868 Kilojoule/(Kilogram·Kelvin).
Example 2
5 BTU/(lb·°F) × 4.1868 = 20.934 kJ/(kg·K)
5 BTU/(Pound·°F) equals 20.934 Kilojoule/(Kilogram·Kelvin).
Example 3
10 BTU/(lb·°F) × 4.1868 = 41.868 kJ/(kg·K)
10 BTU/(Pound·°F) equals 41.868 Kilojoule/(Kilogram·Kelvin).
Example 4 — reverse
1 kJ/(kg·K) = 0.238846 BTU/(lb·°F)
To convert back from Kilojoule/(Kilogram·Kelvin) to BTU/(Pound·°F), divide by 4.1868 or use the swap button above.

BTU/(Pound·°F) to Kilojoule/(Kilogram·Kelvin) — reference table

BTU/(Pound·°F) (BTU/(lb·°F))Kilojoule/(Kilogram·Kelvin) (kJ/(kg·K))
0.001 BTU/(lb·°F)0.0041868 kJ/(kg·K)
0.01 BTU/(lb·°F)0.041868 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)
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)
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)
10000 BTU/(lb·°F)41868 kJ/(kg·K)

Quick conversion tips

1
Multiply by 4.1868

To convert BTU/(Pound·°F) to Kilojoule/(Kilogram·Kelvin), multiply by 4.1868. Example: 10 BTU/(lb·°F) = 41.868 kJ/(kg·K)

2
Reverse: divide by 4.1868

To convert Kilojoule/(Kilogram·Kelvin) back to BTU/(Pound·°F), divide by 4.1868 (multiply by 0.238846). Use the swap button above.

3
Round number check

Start with 100 BTU/(Pound·°F)s = 418.68 kJ/(kg·K) as your reference point. Scale up or down from there.

All BTU/(Pound·°F) conversions

Reverse conversion

kJ/(kg·K) → BTU/(lb·°F)

Convert BTU/(Pound·°F) to all other units

BTU/(lb·°F) → J/(kg·K) BTU/(lb·°F) → kJ/(kg·K) BTU/(lb·°F) → cal/(g·°C) BTU/(lb·°F) → kcal/(kg·°C)

Related tools

All Specific Heat ConverterScientific Calculator

Frequently asked questions

1 BTU/(Pound·°F) equals 4.1868 Kilojoule/(Kilogram·Kelvin)s. Multiply any BTU/(Pound·°F) value by 4.1868 to get Kilojoule/(Kilogram·Kelvin)s.
10 BTU/(Pound·°F)s equals 41.868 Kilojoule/(Kilogram·Kelvin)s. (10 × 4.1868 = 41.868)
100 BTU/(Pound·°F)s equals 418.68 Kilojoule/(Kilogram·Kelvin)s. (100 × 4.1868 = 418.68)
Divide Kilojoule/(Kilogram·Kelvin) by 4.1868 to get BTU/(Pound·°F)s. Or multiply by 0.238846. Use the swap button on the converter above for instant reverse conversion.
Formula: kJ/(kg·K) = BTU/(lb·°F) × 4.1868. Example: 5 BTU/(lb·°F) × 4.1868 = 20.934 kJ/(kg·K).
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About BTU/(Pound·°F) and Kilojoule/(Kilogram·Kelvin)

BTU/(Pound·°F) (BTU/(lb·°F))

The BTU/(Pound·°F) is a unit of Specific Heat measurement (symbol: BTU/(lb·°F)). 1 BTU/(lb·°F) = 4.1868 kJ/(kg·K). Used in scientific and practical Specific Heat measurement applications.

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

The Kilojoule/(Kilogram·Kelvin) is a unit of Specific Heat measurement (symbol: kJ/(kg·K)). It is part of an internationally recognised measurement system used alongside the BTU/(Pound·°F).

History & origin

Both the BTU/(Pound·°F) and Kilojoule/(Kilogram·Kelvin) developed through the standardisation of Specific Heat measurement. Converting between them is a common requirement in science, engineering, and everyday applications where different measurement systems are used.

Common use: BTU/(Pound·°F) to Kilojoule/(Kilogram·Kelvin) conversion is needed when working with international standards, scientific publications, or reference materials that use different unit systems for Specific Heat measurement.