Stand Parameters

Stand Parameters (スタンドパラメータ), or Stand Statistics are a Stand's total abilities and faculties measured and categorized by six statistics: Destructive power, speed, range, durability/staying, precision, and developmental potential/learning.

They are first seen in the artbook JOJO A-GO!GO!, later in canon from Vento Aureo onward as Stands are shown with their parameters along with their name and ability description. Steel Ball Run and JoJolion do not display parameters, but Stands introduced during these arcs are given them in artbooks.

Evaluation
Measures the Stand's strength and ability to cause destruction (physical injury or collateral environmental damage) in a given period of time. Not only limited to brute force, but also to its abilities combined. Measures the Stand's agility and reflexes as well as performance speed. Measures a compromise of the Stand's range of manifestation, range of ability influence, and spatial mobility. Measures the Stand's endurance and level of susceptibility to damage and attacks. This category may also gauge the effectiveness of their power's ability of binding toward physical objects. Measures the Stand's accuracy and range of influence/effect of their abilities to specified targets. Measures the Stand's possible functions, utilization of its abilities and powers, and capacity to improve its overall capabilities.
 * Destructive Power (破壊力):
 * Speed (スピード):
 * Range (射程距離):
 * Durability/Staying (持続力):
 * Precision (精密動作性):
 * Development Potential/Learning (成長性):

Each statistic is ranked from A to E; though rankings of None and Infinite are also possible. Rankings are defined as follows:
 * A: Excellent (超スゴイ)
 * B: Good (スゴイ)
 * C: Same level as a normal human (人間と同じ)
 * D: Weak (ニガテ)
 * E: Very Weak (超ニガテ)

To elaborate on the Developmental Potential attribute, it decreases in rank as the user masters his or her Stand. For example, Jotaro Kujo's Star Platinum is Rank A in Developmental Potential during Stardust Crusaders, but is given Rank C during Stone Ocean, as Jotaro has had many years to hone Star Platinum's power. However, Rank C implies that all of Star Platinum's possible abilities and functions still had not been discovered or figured out by that time.

For a Stand to gain an E-Ranking, it means that either their Stand user discovered all of their Stand's abilities, or the Stand came with very few abilities and thus cannot grow any more than it has.

Gallery
In the anime from JoJo's Bizarre Adventure: Stardust Crusaders onward, Stand parameters appear as illustrations displayed after commercials. In JoJo's Bizarre Adventure: Diamond Is Unbreakable, a silhouette of the Stand User is displayed as well.

Stand Parameters are also used in weekly web radio programs like ORAORAdio and Morioh RADIO 4 GREAT to rate the hosts and guests.