List of sources of movement speed

Movement Speed is a Resource that determines how far you can move each turn. It can be affected by certain actions, Races, class features, feats, and spells.

Most races have a base movement speed of 9 m / 30 ft; Dwarves, Halflings, and Gnomes have a base movement speed of 7.5 m / 25 ft; Wood Elves and Wood Half-Elves have a base movement speed of 10.5 m / 35 ft.

Increasing your movement speed

Temporary

While in turn-based mode, using  Dash Action can double your movement speed. Several classes also have class features which function similarly to dash:

•  Rogues receive the class feature  Cunning Action: Dash at Level 2, which can double their movement speed as a Bonus action.
•  Monks receive the class feature  Step of the Wind: Dash at level 2, which can double their movement at the cost of Bonus action + Ki Point.

Other methods:

• The level 1 ritual spell  Longstrider increases a creature's movement speed by 3 m / 10 ft until the next Long Rest.
• Certain items can give the  Momentum which increase your movement speed by 1.5 m / 5 ft per remaining stack (see the condition page for sources of Momentum).
• Using  Jump, or  flying can also give a slight increase in movement speed.

Permanent

Some classes have class features which increase their base speed:

•  Barbarians receive the class feature  Fast Movement at Level 5, which increases their movement speed by 3 m / 10 ft while not wearing Heavy Armour.
•  Monks receive the class feature  Unarmoured Movement at level 2, which increases their movement speed by 3 m / 10 ft. This bonus improves to 4.5 m / 15 ft and 6 m / 20 ft at levels 6 and 10, respectively, with  Improved Unarmoured Movement.

A well, the Mobile feat permanently increases your movement speed by 3 m / 10 ft.

Reducing movement speed

Movement speed can also be reduced or restricted entirely.

See individual condition pages for infliction sources.

•  Stunned cannot move
•  Restrained cannot move
•  Difficult Terrain halves movement while on a surface that inflicts this
•  Encumbered reduces movement speed by 3 m / 10 ft
•  Heavily Encumbered greatly reduces movement speed
•  Muddy halves movement speed
• Incapacitated conditions cause a creature to become immobile
• Prone conditions cause a creature to use half it's movement speed to stand up

 Freedom of Movement can prevent restriction of movement from certain sources.