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Faster Run/Walk items will make your character move faster both when Running and Walking. How fast your character actually moves is affected by several factors.

Movement speed in Diablo II is measured in yards per second (yards/s). A yard is 48 pixels in horizontal direction and 24 pixels in vertical direction.

The screen size is 640x480 or 800x600 pixels. The lower panel takes 48 pixels, leaving 640x432 pixels in the smaller screen mode and 800x552 pixels in the larger one for the game play area. Thus, the visible screen has the following proportions in yards:

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The basic walking and running speeds are the same for all characters.

Monsters' base movement speeds vary.

The minimum walking and running speed is 1 yard/s. Regardless of how chilled or slowed you are, you cannot move slower than this. Note that running speed is calculated from an unmodified walking speed and, thus, the running speed may be lower than 3 yards/s but never below 1 yard/s.

Movement speed is affected by items, skills, armor/shield weight, and slowing effects, such as chill and slow.

Walking and running speed are modified by Faster Run/Walk (FRW) items, but charging speed is unaffected by them. Item based FRW is subject to diminishing returns. The effect of 0 % to 295 % FRW to run/walk speed is listed in the table below.

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Skills, such as Vigor, increase movement speed. Their effect is not subject to diminishing returns. FRW from skills increases movement speed as follows:

For example, level 7 Vigor gives 32 % FRW, which translates into +1.28 yards/s with run/walk and +2.88 yards/s with Charge. FRW from different skills stacks.

Heavy and medium armors and shields reduce movement speed as follows:

Thus, the maximum run/walk speed reduction from the armor and the shield is 0.80 yards/s (both heavy). The maximum reduction to charging speed is 1.80 yards/s.

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'''Slow Target item'''. Regardless of X%, this ability functions as -100% on the Diablo 2 client. The ability functions normally as -X% FRW on the Diablo 2 server. If used, the ability causes severe desync, because the target is typically moving at different speeds on the client and the server. Slow from different items stacks (i.e. each slow item adds -100% FRW on the client side), and slowing effects of different type stack in general.

Monsters' speed bonuses are treated as skill based FRW (no diminishing returns). Note that monsters' base movement speeds vary, and thus the increase in yards/s is usually not the same as for characters.

<blockquote>EffectiveWalkSpeed = BaseWalkSpeed * (1 + Skill_FRW / 100 + [Item_FRW * 150 / (Item_FRW + 150)] / 100 + Armor_Speed / 100)</blockquote>

Additionally, if EffectiveWalkSpeed < BaseWalkSpeed / 4, EffectiveWalkSpeed = BaseWalkSpeed / 4. Thus, there is a minimum cap of 1 yard/s for EffectiveWalkSpeed.

<blockquote>EffectiveRunSpeed = BaseRunSpeed + BaseWalkSpeed * (Skill_FRW / 100 + [Item_FRW * 150 / (Item_FRW + 150)] / 100 + Armor_Speed / 100)</blockquote>

Additionally, if EffectiveRunSpeed < BaseWalkSpeed / 4, EffectiveRunSpeed = BaseWalkSpeed / 4. Thus, there is a minimum cap of 1 yard/s for EffectiveRunSpeed.

<blockquote>ChargeSpeed = BaseRunSpeed * (1 + Skill_FRW / 100 + Armor_Speed / 100) * 150%</blockquote>

There is no lower limit to ChargeSpeed. It can be even negative.

[[Category:Modifiers]]

[[category:calculations]]