容积热容是指物体在温度改变而没有变相之下的储热能力。与比热不同之处是它视乎物体的容积，而比热则视乎物体的质量。根据物体的比热，我们可以利用物体的密度得出容积热容。　

For a table of volumetric heat capacities, see Heat capacity#Table of specific heat capacities.

Volumetric heat capacity (VHC), also termed volume-specific heat capacity, describes the ability of a given volume of a substance to store internal energy while undergoing a given temperature change, but without undergoing a phase transition. It is different from specific heat capacity in that the VHC is a 'per unit volume' measure of the relationship between thermal energy and temperature of a material, while the specific heat is a 'per unit mass' measure (or occasionally per molar quantity of the material). If given a specific heat value of a substance, one can convert it to the VHC by multiplying the specific heat by the density of the substance.