Move Speed

Move Speed is a stat: Speed of movement in cells per second. Its minimum allowed value is 0.15 c/s. Its default value is 3 c/s. A default Human has a base movement speed of 4.6 c/s.

Factors

Offsets

First of all the following offsets are applied to the Move Speed Base value.

Traits
- Jogger: +0.4 c/s
- Fast walker: +0.2 c/s
- Slowpoke: −0.2 c/s
Gear
- Minigun: −0.25 c/s
- Plate armor: −0.8 c/s
- Flak vest: −0.12 c/s
- Flak pants: −0.12 c/s
- Flak jacket: −0.12 c/s
- Marine armor: −0.4 c/s
- Grenadier armor: −0.4 c/s
- Prestige marine armor: −0.4 c/s
- Cataphract armor: −0.8 c/s
- Phoenix armor: −0.8 c/s
- Prestige cataphract armor: −0.8 c/s
- Burka: −0.4 c/s
Artificial body parts
- Ghoul barbs: −0.25 c/s
- Ghoul plating: −0.7 c/s
- Metalblood heart: −0.2 c/s
Hediffs
- Juggernaut serum: +0.5 c/s
- Frenzy inducer: Variable, increases the longer a pawn is in the field. caps at +0.4 c/s
- Ghoul frenzy: +4 c/s (available only for Ghouls)
Genes
- Very fast runner: +0.4 c/s
- Fast runner: +0.2 c/s
- Slow runner: −0.2 c/s
- Naked speed:
  - Unclothed: +0.1 c/s
  - Clothed: −0.2 c/s

Factors

The following factors are applied after the Offsets.

Moving capacity: 100% importance, no allowed defect. No Max (effectively 428%).
Glucosoid pump: Creates Glucosoid Rush effect, +12% per Glucosoid pump. Maximum four, for x148%. Requires ability to Deathrest.
Genes: These genes create offsets on Move Speed under certain conditions.
- Mild UV sensitivity: x90% when in sunlight (when on an unroofed tile while light levels from natural sunlight are 11% or more).
- Intense UV sensitivity: x80% when in sunlight (when on an unroofed tile while light levels from natural sunlight are 11% or more).
- Pollution stimulus: Scales with time spent on polluted tiles, maximum of x120%.
Age: Children have offsets on their movespeed, determined by age.

Age	0-2	3-9	9-13	13-18	>18
Speed Factor	x0.2^[1]	x0.75	x0.85	x0.95	x1

↑ As defined in the game defs, however in practice not applicable due to babies being unable to move.

Go frenzy (inspiration): ×140%
Light: scaling linearly from ×80% at 0% light to ×100% at 30% light. Pawns that are Blind, have the Lighting: Darklight preferred precept, or have the Dark vision gene are unaffected by this factor.

External factors

Weather

Rain and Foggy rain: ×90%
Rainy thunderstorm and Hard snow: ×80%

Path cost

Floors, buildings, items and plants add path cost. Where each path cost adds about 7.7% to the time it would take the pawn to traverse this tile unhindered. The move speed factor can therefore be calculated like this:

move speed factor = 1 / (1 + path cost * 0.077)

For terrain, flooring and things with a path cost of 20 or below, a pawn is slowed down every time they enter a tile with that thing. For things with a path cost of 25 or above continuing walking on a thing with a path cost of 25 or higher doesn't slow the pawn down again (even if it gets higher).^{[Fact check]} Walking over an item on a workbench slows the pawn down again, items on shelves have no additional effect, however.

Below is a selection of some common values. Minified things have a path cost of 14.

Path cost	Move speed factor	Examples (random)
0	100%	Pen marker, Wall torch lamp, Bonsai tree , Smooth stone, Holding spot , Wall lamp, Column
1	93%	Burned floor, Straw matting, Rough-hewn stone
2	87%	Flesh , Gray surface , Soil, Rough stone
3	81%	Lichen-covered soil
4	76%
8	62%
10	56%	Egg box
12	52%
14	48%	Luciferium, Lavish meal, Antigrain warhead, Foxfur, Lightleather, Reinforced barrel, Techprof subpersona core, Ambrosia, Panthera fur, Flake... further results
20	39%	Slab double bed , Slab bed
24	35%	Blood torch
25	34%	Kneel sheet , Pew , Kneel pillow
30	30%	Agarilux, Passive cooler, Hydroponics basin, Mech node , Alocasia, Dining chair, Agave, Reliquary , Skullspike , Moisture pump... further results
42	24%	Hemogen amplifier , Table (1x2), Willow tree, Poker table, Tube television, Gibbet cage , Deathrest accelerator , Birch tree, Tool cabinet, Table (2x2)... further results
50	21%	Drug lab, Electroharvester , Ancient pipes , Simple research bench, Ancient large crate , Ancient operating table , Long-range mineral scanner, Electric smithy, Foam turret, Ancient large mech gestator ... further results
60	18%	Ancient fence
80	14%	Fence

You can see the path cost of every thing here.

Flooring and terrain

For flooring and terrain see the full list below. Note that pawns are slowed down continuously by terrain, but things on top of it with a path cost equal or below it, don't slow the pawn additionally.

Flooring:

Floor	Move Speed Factor
Burned floor	0.93
Flesh	0.87
Fungal gravel	0.87
Gray surface	0.87
Rough stone	0.87
Rough-hewn stone	0.93
Straw matting	0.93

Other terrain
- Chest-deep moving water: ×24%
- Marsh, Shallow ocean water, Shallow water and Shallow moving water: ×30%
- Marshy soil, Mud, Soft sand and Ice: ×48%
- Sand: ×76%
- Lichen-covered soil: ×81%
- Soil, Stony soil, Rich soil: ×87%
Snow
- Thin: ×76%
- Medium: ×62%
- Thick: ×52%

Example

Speed of 29.61 c/s vs base speed of 4.6 c/s

Moving speed of a particular pawn can be calculated using the following formula:

Move speed = (Base value + Offsets) × Factors × External factors

Let us calculate how fast a human could possibly go. It would have the following values:

Base value: 4.6 c/s
Offsets:
- Jogger trait: +0.4 c/s
- Very fast runner gene : +0.4 c/s
- Naked speed gene unclothed : +0.1 c/s
- Juggernaut serum: +0.5 c/s
- Frenzy inducer: Variable, caps at +0.4 c/s
Factors:
- Moving capacity: ×428% (see moving)^[1]
- Glucosoid pump: Creates Glucosoid Rush effect, +12% per Glucosoid pump. Maximum four, for x148%. Requires ability to Deathrest.
- Pollution stimulus: Maximum x120% when the pawn is on polluted tiles.
- Go frenzy inspiration: ×140%
External factor: ×100%

Move speed = (4.6 c/s + 0.4 c/s + 0.4 c/s + 0.1 c/s + 0.5c/s + 0.4c/s) × (4.28 × 1.20 x 1.48 1.4) × 1 = 68.11 c/s

↑ Be aware that it is not normally possible to achieve this speed in a short time since the three hard drugs required to take have a 100% chance of causing a Minor Overdose and reducing Consciousness by 50%. With Biotech (DLC), it is possible to gain Genes that can reduce the likelihood of an overdose, or even prevent it entirely. However, even with the Gene for Wake-up Impervious, a heart attack can still occur if the pawn does not have a Bionic heart.

Notes

Offsets, such as the speed decrease from gear or traits, occurs before multiplicative factors such as Moving. So while a normal human moves at 4.6c/s, and a human in a flak vest moves at 4.48c/s for a difference of -0.12c/s, a pawn with 2 archotech legs would move at 6.9c/s while the same pawn in a flak vest would move at 6.72c/s for a difference of -0.18c/s. Similarly, jogger-traited human moves at 5.00c/s for a difference of 0.40/s compared to baseline, but a pawn with 2 archotech legs would move at 6.9c/s while the same pawn as a jogger would move at 7.50c/s for a difference of +0.60c/s.