| Keyword | Description | Symbol / Usage |
| bev | Billion electronvolt | {beV.} |
| btu | Btu (default, thermal) | Btu. |
| btu39f | Btu (39F) | [Btu39F.] |
| btu59f | Btu (59F) | [Btu59F.] |
| btu60f | Btu (60F) | [Btu60F.] |
| btuiso | Btu (iso) | [BtuISO.] |
| btuist | Btu (ist) | [BtuIST.] |
| btuit | Btu (intl. table) | [BtuIT.] |
| btuth | Btu (mean) | [BtuTH.] |
| cal | Calorie (thermal) | cal. |
| cal15c | Calorie (15C) | [cal15C.] |
| cal20c | Calorie (20C) | [cal20C.] |
| calit | Calorie (intl. table) | [calIT.] |
| calmean | Calorie (mean) | [calMean.] |
| erg | Erg | erg. |
| ev | Electronvolt | eV. |
| j | Joule | J. |
| kcal | Kilo-calorie (thermal) | kcal. |
| kcalit | Kilo-calorie (intl. table) | [kcalIT.] |
| kcalmean | Kilo-calorie (mean) | [kcalMean.] |
| kwh | Kilo-watt hour | {kWh.} |
| mj | Mega-joule | {MJ.} |
| quad | Quad | [quad.] |
| therm | Therm ec | {therm.} |
| thermus | Therm (us) | [thermUS.] |
| ttnt | Ton of tnt | [tTNT.] |
| wh | Watt hour | {Wh.} |
| ws | Watt second | {Ws.} |