OrgLimit Class
The System.OrgLimit class contains methods that return the name, current value, and maximum limit for an instance.

getName() – Returns the limit’s name.
getValue() – Returns the limit usage value.
getLimit() – Returns the maximum allowed limit value.

OrgLimits Class
The System.OrgLimits class contains methods that return a list of all org limits or a map of all org limit names and values.

getAll() – Returns a list of OrgLimit instances.
getMap() – Returns a map of all OrgLimit instances with the limit name as key.

Sample Code:
Output: