## Specific energyUnits Type ⤴

#### Specific energy is energy per unit mass. (It is also sometimes called "energy density," though "energy density" more precisely means energy per unit volume.) The SI unit for specific energy is the joule per kilogram (J/kg). Other units still in use in some contexts are the kilocalorie per gram (Cal/g or kcal/g), mostly in food-related topics, watt hours per kilogram in the field of batteries, and the Imperial unit BTU per pound (BTU/lb), in some engineering and applied technical fields.

### Term

specificEnergy

### Category

Mechanics

### Provenance

QUDT

### Provenance Uri

http://qudt.org/vocab/quantity#Specificenergy

### Note

Absorbed dose, does equivalent, and specific energy all have the same dimensionality.

### Default Unit

Joule per kilogram (J/kg); Gray (Gy); Sievert (Sv)

### Dimension Symbol

L2T-2

### Dimension Length

0

### Dimension Mass

2

### Dimension Time

0

### Dimension Current

-2

### Dimension Temperature

0

### Dimension Amount

0

### Dimension Light

0