1 kilojoule/kilogram (kJ/kg) equals 1,000 joule/kilogram (J/kg). Enter any value below to convert from kJ/kg to J/kg.
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1 kJ/kg = 1,000 J/kg
All Fuel Efficiency - Mass units
From 1 kJ/kg
Unit
Value
Joule/kilogram J/kg
1,000
Kilojoule/kilogram kJ/kg
1
Calorie/gram cal/g
0.2388458966
Kilocalorie/kilogram kcal/kg
0.2388458966
Btu/pound Btu/lb
0.4299226139
Btu/kilogram Btu/kg
0.9478133945
Recent conversions
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Formula
kJ/kg to J/kg conversion formula
Use this relationship for a direct conversion:
J/kg = kJ/kg x 1,000
Worked example
2 kJ/kg = 2,000 J/kg.
SI relationships follow the cited reference. Conventional and domain-specific factors use the established ConvertWin factor inventory; verify safety-critical work against the governing standard.
Quick reference
Kilojoule/kilogram to Joule/kilogram table
Kilojoule/kilogram (kJ/kg)
Joule/kilogram (J/kg)
0.01
10
0.1
100
1
1,000
2
2,000
5
5,000
10
10,000
25
25,000
50
50,000
100
100,000
1,000
1,000,000
From unit
About the kilojoule/kilogram
Kilojoule/kilogram (kJ/kg) is a metric prefix multiple of the Joule/kilogram (J/kg). 1 kJ/kg = 1,000 J/kg.
Symbol: kJ/kg
To unit
About the joule/kilogram
Joule/kilogram (J/kg) is the base unit of Fuel Efficiency - Mass in the International System of Units (SI).
How do you convert kilojoule/kilogram to joule/kilogram?
Use the formula J/kg = kJ/kg x 1,000. 1 kilojoule/kilogram (kJ/kg) equals 1,000 joule/kilogram (J/kg).
Is the kJ/kg to J/kg conversion exact?
SI relationships follow the cited reference. Conventional and domain-specific factors use the established ConvertWin factor inventory; verify safety-critical work against the governing standard.