Example: To convert 5 Btu (IT) to attojoule, multiply 5 by 1.0550558526199999e+21 to get 5.2753e+21 aJ (5.2753e+21 aJ).
| Btu (IT) | aJ |
|---|---|
| 2 Btu (IT) | 2.1101e+21 aJ (2.1101e+21 aJ) |
| 3 Btu (IT) | 3.1652e+21 aJ (3.1652e+21 aJ) |
| 4 Btu (IT) | 4.2202e+21 aJ (4.2202e+21 aJ) |
| 5 Btu (IT) | 5.2753e+21 aJ (5.2753e+21 aJ) |
| 6 Btu (IT) | 6.3303e+21 aJ (6.3303e+21 aJ) |
| 7 Btu (IT) | 7.3854e+21 aJ (7.3854e+21 aJ) |
| 8 Btu (IT) | 8.4404e+21 aJ (8.4404e+21 aJ) |
| 9 Btu (IT) | 9.4955e+21 aJ (9.4955e+21 aJ) |
| 10 Btu (IT) | 1.0551e+22 aJ (1.0551e+22 aJ) |
| 11 Btu (IT) | 1.1606e+22 aJ (1.1606e+22 aJ) |
| 12 Btu (IT) | 1.2661e+22 aJ (1.2661e+22 aJ) |
| 13 Btu (IT) | 1.3716e+22 aJ (1.3716e+22 aJ) |
| 14 Btu (IT) | 1.4771e+22 aJ (1.4771e+22 aJ) |
| 15 Btu (IT) | 1.5826e+22 aJ (1.5826e+22 aJ) |
| 16 Btu (IT) | 1.6881e+22 aJ (1.6881e+22 aJ) |