What is the base SI unit for specific heat capacity?

The primary reference unit for specific heat capacity in this converter is the Joule per Kilogram-Kelvin (J/(kg·K)). All 5 supported specific heat capacity units are anchored to this standard.

Are these specific heat capacity conversion factors verified?

Yes, all specific heat capacity conversion constants on UnitConvertersGo are verified against NIST Special Publication 811 and ISO/IEC 80000 international metrology standards.

Specific Heat Capacity Converter

Enter a value below to convert between metric, imperial, and standard specific heat capacity units.

Convert Specific Heat Capacity

Enter a value and select the units to convert between joules per kilogram-kelvin, kilojoules per kilogram-kelvin, and joules per gram-°c.

Instant conversion

Value

From

Result

0.01 kJ/(kg·K)

10 J/(kg·K) = 0.01 kJ/(kg·K)

10 J/(kg·K) = 0.01 kJ/(kg·K) = 0.01 J/(g·°C)Get Widget

You can change the units using the dropdowns above or click on a unit button.

Suggested Conversions

Common Specific Heat Capacity Reference Points

Here are some common specific heat capacity values in Joule per Kilogram-Kelvin (J/(kg·K)), Kilojoule per Kilogram-Kelvin (kJ/(kg·K)), and Joule per Gram-°C (J/(g·°C)). Click any preset value or arrow to load it into the converter.

Description	Joule per Kilogram-Kelvin (J/(kg·K))	Kilojoule per Kilogram-Kelvin (kJ/(kg·K))	Joule per Gram-°C (J/(g·°C))
1 joule per kilogram-kelvin unit	1	0.001	0.001
5 joules per kilogram-kelvin	5	0.005	0.005
10 joules per kilogram-kelvin benchmark	10	0.01	0.01
25 joules per kilogram-kelvin	25	0.025	0.025
50 joules per kilogram-kelvin	50	0.05	0.05
100 joules per kilogram-kelvin reference	100	0.1	0.1

Specific Heat Capacity Conversion Formulas

Use the following formulas to convert between joules per kilogram-kelvin, kilojoules per kilogram-kelvin, and joules per gram-°c.

Joules per Kilogram-Kelvin to Kilojoules per Kilogram-Kelvin

kJ/(kg·K) = J/(kg·K) × 0.001

Kilojoules per Kilogram-Kelvin to Joules per Kilogram-Kelvin

J/(kg·K) = kJ/(kg·K) × 1,000

Joules per Kilogram-Kelvin to Joules per Gram-°C

J/(g·°C) = J/(kg·K) × 0.001

Example: Convert 10 Joules per Kilogram-Kelvin (J/(kg·K)) to Kilojoules per Kilogram-Kelvin (kJ/(kg·K))

1 J/(kg·K) = 0.001 kJ/(kg·K)

10 J/(kg·K) × 0.001 = 0.01 kJ/(kg·K)

All specific heat capacity conversions are anchored to the international SI base unit (Joule per Kilogram-Kelvin) for full scientific and engineering accuracy.

More Joule per Kilogram-Kelvin & Kilojoule per Kilogram-Kelvin Conversions

Convert from Joules per Kilogram-Kelvin

Convert to Kilojoules per Kilogram-Kelvin

Frequently Asked Questions

1 joule per kilogram-kelvin (J/(kg·K)) equals 0.001 kilojoules per kilogram-kelvin (kJ/(kg·K)). Multiply your joule per kilogram-kelvin value by 0.001 or enter it in the Specific Heat Capacity Converter above for instant calculation.

Specific Heat Capacity Converter

Quick Info

Joule per Kilogram-Kelvin (J/(kg·K)) is a primary specific heat capacity unit used globally across science, commerce, and daily measurement.
Kilojoule per Kilogram-Kelvin (kJ/(kg·K)) is widely used alongside J/(kg·K) for practical specific heat capacity specifications and conversions.
Joule per Kilogram-Kelvin (J/(kg·K)) serves as the standardized reference base unit anchoring all 5 units in this category.
Verified accuracy: All conversion factors follow official NIST SP 811 and ISO/IEC 80000 metrology constants.

Specific Heat Capacity Units Comparison

Joule per Kilogram-Kelvin (J/(kg·K))

Coherent SI unit of specific heat capacity.

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

Equal to 1,000 J/(kg·K).

Joule per Gram-°C (J/(g·°C))

Equal to 1,000 J/(kg·K).

References

[1]NIST · NIST HB 133 / SP 811
Source
[2]BIPM · BIPM SI-9
Source
[3]NIST SP 811 · NIST SP 811 App. B.9
Source

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All Specific Heat Capacity Conversion Calculators (6)

Select any dedicated specific heat capacity pair below for worked examples and printable tables

Joules per Kilogram-Kelvin to Kilojoules per Kilogram-Kelvin (J/(kg·K) to kJ/(kg·K))Kilojoules per Kilogram-Kelvin to Joules per Kilogram-Kelvin (kJ/(kg·K) to J/(kg·K))Joules per Kilogram-Kelvin to Joules per Gram-°C (J/(kg·K) to J/(g·°C))Joules per Gram-°C to Joules per Kilogram-Kelvin (J/(g·°C) to J/(kg·K))Joules per Kilogram-Kelvin to Calories per Gram-°C (J/(kg·K) to cal/(g·°C))Calories per Gram-°C to Joules per Kilogram-Kelvin (cal/(g·°C) to J/(kg·K))

Category Conversion Matrix

Simultaneous comparison of 5 units in this category

Joule per Kilogram-Kelvin (J/(kg·K))

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

0.001

Joule per Gram-°C (J/(g·°C))

0.001

Calorie per Gram-°C (cal/(g·°C))

0.00023884

BTU per Pound-°F (BTU/(lb·°F))

0.00023884

Specific Heat Capacity Unit Definitions & Symbols

Joule per Kilogram-Kelvin (J/(kg·K))

Coherent SI unit of specific heat capacity.

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

METRIC

Equal to 1,000 J/(kg·K).

Joule per Gram-°C (J/(g·°C))

METRIC

Equal to 1,000 J/(kg·K).

Calorie per Gram-°C (cal/(g·°C))

METRIC

Water specific heat benchmark (1 cal/(g·°C) = 4,186.8 J/(kg·K)).

BTU per Pound-°F (BTU/(lb·°F))

US CUSTOMARY

Imperial/US specific heat capacity unit (4,186.8 J/(kg·K)).

References

NIST · BIPM · ISO

[1]
NIST (NIST HB 133 / SP 811)·Checking the Net Contents of Packaged Goods, Handbook 133 - 2019 Edition & NIST SP 811
NIST HB 133 Standard
[2]
BIPM (BIPM SI-9)·The International System of Units (SI Brochure, 9th Edition)
BIPM SI Brochure
[3]
NIST SP 811 (NIST SP 811 App. B.9)·NIST Guide to the SI, Appendix B.9: Factors for Units Listed by Kind of Quantity or Field of Science
NIST SP 811 Appendix B.9

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