Kilojoules: Kilojoules (kJ) are equal to 1,000 joules. This unit is often used in fields such as chemistry and nutrition to quantify energy. For example, food energy is commonly expressed in kilojoules per serving or per 100 grams.
Btu: British Thermal Units (BTU) are a measure of heat energy. One BTU is defined as the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit. This unit is commonly used in the power, steam generation, and heating, ventilation, and air conditioning (HVAC) industries.
| Kilojoules | Btu |
|---|---|
| 4639 | 4,396.9230630000 |
| 4640 | 4,397.8708800000 |
| 4641 | 4,398.8186970000 |
| 4642 | 4,399.7665140000 |
| 4643 | 4,400.7143310000 |
| 4645 | 4,402.6099650000 |
| 4646 | 4,403.5577820000 |
| 4647 | 4,404.5055990000 |
| 4648 | 4,405.4534160000 |
| 4649 | 4,406.4012330000 |