Table of Contents
Kilojoules (kJ) and BTUs (British Thermal Units) are both units of energy, commonly used to measure heat and energy content:
Kilojoules (kJ)
Kilojoules are a metric unit of energy. They are often used to measure the energy content of food and beverages, as well as in scientific and engineering contexts. One kilojoule is equal to 1000 joules.
BTUs (British Thermal Units)
BTUs are a unit of energy that’s frequently used in the United States, particularly for measuring the heat energy. It’s often used in discussions related to heating, cooling, and energy consumption. One BTU is roughly equivalent to the amount of energy needed to heat one pound of water by one degree Fahrenheit.
How to convert kJ to BTU conversion
1 kJ = 0.94781712 BTU(IT)
1 BTU(IT) = 1.05505585262 kJ
Conversion formula
E(BTU) = E(kJ) / 1.05505585262 = 0.94781712 ⋅ E(kJ)
kJ to BTU conversion table
| Energy (kJ) | Energy (BTU(IT)) |
| 1 kJ | 0.947817 BTU |
| 2 kJ | 1.895634 BTU |
| 3 kJ | 2.843451 BTU |
| 4 kJ | 3.791268 BTU |
| 5 kJ | 4.739086 BTU |
| 6 kJ | 5.686903 BTU |
| 7 kJ | 6.634720 BTU |
| 8 kJ | 7.582537 BTU |
| 9 kJ | 8.530354 BTU |
| 10 kJ | 9.478171 BTU |
| 20 kJ | 18.956342 BTU |
| 30 kJ | 28.434514 BTU |
| 40 kJ | 37.912685 BTU |
| 50 kJ | 47.390856 BTU |
| 60 kJ | 56.869027 BTU |
| 70 kJ | 66.347198 BTU |
| 80 kJ | 75.825370 BTU |
| 90 kJ | 85.303541 BTU |
| 100 kJ | 94.781712 BTU |
| 200 kJ | 189.563424 BTU |
| 300 kJ | 284.345136 BTU |
| 400 kJ | 379.126848 BTU |
| 500 kJ | 473.908560 BTU |
| 600 kJ | 568.690272 BTU |
| 700 kJ | 663.471984 BTU |
| 800 kJ | 758.253696 BTU |
| 900 kJ | 853.035408 BTU |
| 1000 kJ | 947.817120 BTU |
| 10000 kJ | 9478.171203 BTU |
FAQs on Kilojoules to BTU
Is a kJ the same as a BTU?
No, a kilojoule (kJ) and a British Thermal Unit (BTU) are not the same. They are both units of energy, but they belong to different measurement systems.
How do you convert kJ/kg to BTU?
To convert from kilojoules per kilogram (kJ/kg) to British Thermal Units (BTU), you can use the conversion factor 1 kJ/kg = 0.4299 BTU/lb (pound). Multiply the value in kJ/kg by 0.4299 to get the equivalent value in BTU/lb.
How do you convert BTU to SI?
To convert British Thermal Units (BTU) to the International System of Units (SI), you can use the conversion factor 1 BTU ≈ 1055.06 joules. Multiply the value in BTU by 1055.06 to get the equivalent value in joules.
What is the BTU formula?
The formula to calculate the amount of energy in British Thermal Units (BTU) is: Energy (BTU) = Mass (lbs) × Specific Heat Capacity (BTU/lb°F) × Temperature Change (°F).
What is BTU value?
The BTU value represents the amount of energy required to raise the temperature of a pound of water by one degree Fahrenheit. It's commonly used to measure energy in heating and cooling systems.
What is kJ/kg unit for?
The unit kilojoules per kilogram (kJ/kg) is often used to measure specific energy or energy per unit mass. It's used in fields like thermodynamics to describe the energy content of substances.
How do you convert kJ to watts?
To convert kilojoules (kJ) to watts (W), you need to divide the energy in kilojoules by the time in seconds. The formula is: Power (W) = Energy (kJ) / Time (s).
What is the SI unit kJ/kg?
The SI unit kilojoules per kilogram (kJ/kg) is used to measure specific energy, which is the amount of energy stored per unit mass of a substance. It's commonly used in engineering, physics, and thermodynamics to quantify energy content.
