Converting kilojoules (kJ) to British Thermal Units (BTU) is a common task in energy calculations. To perform this conversion, use the factor: 1 kJ equals approximately 0.947817 BTU. This means that to convert kilojoules to BTUs, you multiply the number of kilojoules by 0.947817. For example, 5 kJ is equal to 4.7390856016 BTU. citeturn0search0 Conversely, to convert BTUs to kilojoules, multiply the number of BTUs by 1.055056, since 1 BTU is approximately 1.055056 kJ. citeturn0search6 Understanding this conversion is essential for professionals working in fields like thermodynamics, heating, and energy management, where both units are frequently used.