Capacity or capacities may refer to:

Mathematics, science, and engineering

* Capacity of a container, closely related to the volume of the container *

Capacity of a set In mathematics, the capacity of a set in Euclidean space is a measure of the "size" of that set. Unlike, say, Lebesgue measure, which measures a set's volume or physical extent, capacity is a mathematical analogue of a set's ability to hold electri ...

, in Euclidean space, the total charge a set can hold while maintaining a given potential energy *

Capacity factor The net capacity factor is the unitless ratio of actual electrical energy output over a given period of time to the theoretical maximum electrical energy output over that period. The theoretical maximum energy output of a given installation is de ...

, the ratio of the actual output of a power plant to its theoretical potential output * Storage capacity (energy), the amount of energy that the storage system of a power plant can hold *

Nameplate capacity Nameplate capacity, also known as the rated capacity, nominal capacity, installed capacity, or maximum effect, is the intended full-load sustained output of a facility such as a power station,

, the intended full-load sustained output of a facility such as a power plant *

Heat capacity Heat capacity or thermal capacity is a physical property of matter, defined as the amount of heat to be supplied to an object to produce a unit change in its temperature. The SI unit of heat capacity is joule per kelvin (J/K). Heat capacity i ...

, a measurement of changes in a system's internal energy *

Combining capacity In chemistry, the valence (US spelling) or valency (British spelling) of an element is the measure of its combining capacity with other atoms when it forms chemical compounds or molecules. Description The combining capacity, or affinity of a ...

, another term for valence in chemistry *

Battery capacity An electric battery is a source of electric power consisting of one or more electrochemical cells with external connections for powering electrical devices. When a battery is supplying power, its positive terminal is the cathode and its negat ...

, the amount of electric charge a battery can deliver at the rated voltage

Computer

* Data storage capacity, amount of stored information that a storage device or medium can hold * Channel capacity, the highest rate at which information can be reliably transmitted

Social

Carrying capacity The carrying capacity of an environment is the maximum population size of a biological species that can be sustained by that specific environment, given the food, habitat, water, and other resources available. The carrying capacity is defined as t ...

, the population size of a species that its environment can sustain *

Capacity planning Capacity planning is the process of determining the production capacity needed by an organization to meet changing demands for its products. In the context of capacity planning, design capacity is the maximum amount of work that an organization ...

, the process of determining the production resources needed to meet product demand *

Capacity building Capacity building (or capacity development, capacity strengthening) is the improvement in an individual's or organization's facility (or capability) "to produce, perform or deploy". The terms ''capacity building'' and ''capacity development'' ha ...

, strengthening the skills, competencies and abilities of developing societies *

Productive capacity Productive capacity is the maximum possible output of an economy. According to the United Nations Conference on Trade and Development (UNCTAD), no agreed-upon definition of maximum output exists. UNCTAD itself proposes: "the productive ''resources'' ...

, the maximum possible output of an economy *

Capacity management Capacity management's goal is to ensure that information technology resources are sufficient to meet upcoming business requirements cost-effectively. One common interpretation of capacity management is described in the ITIL framework. ITIL vers ...

, a process used to manage information technology in business *

Capacity utilization Capacity utilization or capacity utilisation is the extent to which a firm or nation employs its installed productive capacity. It is the relationship between output that ''is'' produced with the installed equipment, and the potential output whic ...

, the extent to which an enterprise or a nation uses its theoretical productive capacity * Road capacity, the maximum

traffic flow In mathematics and transportation engineering, traffic flow is the study of interactions between travellers (including pedestrians, cyclists, drivers, and their vehicles) and infrastructure (including highways, signage, and traffic control devi ...

rate that theoretically may be attained on a given road *

Seating capacity Seating capacity is the number of people who can be seated in a specific space, in terms of both the physical space available, and limitations set by law. Seating capacity can be used in the description of anything ranging from an automobile that ...

, the number of people who can be seated in a specific space

Legal

Capacity (law) Legal capacity is a quality denoting either the legal aptitude of a person to have rights and liabilities (in this sense also called transaction capacity), or altogether the personhood itself in regard to an entity other than a natural person ( ...

, the capability and authority to undertake a legal action

Arts

* ''Capacities'' (album), an album by Up Dharma Down * ''Capacity'' (album), an album by Big Thief

Mathematics, science, and engineering

Computer

Social

Legal

Arts

See also