What Does Total Travel Mean on a Keyboard Switch?

When comparing mechanical keyboard switches, you will often see specifications such as 2.0 mm pre-travel and 4.0 mm total travel. The difference between these two measurements can be confusing at first.

Total travel is the full distance a switch can move downward from its resting position until it completely bottoms out.

In plain English: if a switch has 4.0 mm total travel, the stem can move roughly 4 millimeters downward before it physically reaches the end of its movement.

Quick choice

Around 4.0 mm total travel gives a traditional mechanical-switch feel. Shorter values such as 3.0–3.5 mm can feel more compact and direct. Shorter total travel does not automatically mean earlier activation, though — for that, pre-travel is the more important specification.

1. What exactly does total travel mean?

Total travel describes the complete vertical movement of a keyboard switch.

The measurement starts at the switch's resting position and ends when the stem reaches the physical bottom of its travel.

As a rough guide:

• 2.8–3.2 mm: very short total travel
• 3.3–3.6 mm: short
• 3.8–4.0 mm: traditional / normal
• 4.0+ mm: relatively long travel

These categories are approximate. Actual feel also depends on pre-travel, actuation force, bottom-out force and switch type.

2. Total travel vs pre-travel

This is the most important distinction:

• Pre-travel: distance before the switch registers.
• Total travel: full distance before the switch bottoms out.

A switch might, for example, have:

• Pre-travel: 2.0 mm
• Total travel: 4.0 mm

The input would therefore register roughly halfway through the complete keypress.

Read our guide to pre-travel on mechanical switches for more information.

3. Total travel vs actuation point

The actuation point is the position where the keyboard registers the input.

Total travel continues beyond that point all the way to the physical bottom of the switch.

A switch with 1.5 mm pre-travel and 3.5 mm total travel therefore activates after roughly 1.5 mm but can still move approximately another 2.0 mm.

4. Example: 3.5 mm vs 4.0 mm total travel

Characteristic	3.5 mm	4.0 mm
Total movement	Shorter	Longer
Feel	More compact and direct	More traditional
Bottom-out	Reached sooner	More movement available
Typing feel	Can feel short and tight	More traditional travel

A difference of 0.5 mm may look small on paper, but it can be noticeable during typing.

5. Does shorter total travel mean a faster switch?

Not automatically.

Total travel determines how far the switch can move in total. It does not determine when the input registers.

Switch	Pre-Travel	Total Travel
Switch A	2.0 mm	3.2 mm
Switch B	1.2 mm	4.0 mm

Switch B has more total travel but activates earlier because it has shorter pre-travel.

For activation speed, pre-travel is therefore generally more relevant than total travel.

6. What does short total travel feel like?

Shorter total travel can make a switch:

• reach the bottom sooner;
• feel more compact;
• have a shallower full keypress;
• feel more direct during rapid inputs;
• produce a sharper bottom-out if you type firmly.

Some users prefer this feeling, while others prefer the deeper movement of traditional switches.

7. What does longer total travel feel like?

Longer total travel provides more vertical movement.

This can create:

• a traditional mechanical feel;
• more movement after actuation;
• a deeper keypress;
• a less abrupt bottom-out;
• a familiar feel for traditional typists.

8. Total travel and bottom-out force

Total travel tells you how far the switch can move. Bottom-out force tells you approximately how much force is present at the end of that movement.

For example:

• Total travel: 4.0 mm
• Bottom-out force: 60 gf

The first value measures distance. The second measures force.

Read our guide to bottom-out force for more information.

9. Total travel and actuation force

Actuation force describes the force around the registration point, while total travel describes the complete physical movement.

A switch can therefore:

• have light actuation;
• have long total travel;
• and still have a relatively firm bottom-out.

These specifications should be considered together.

10. Total travel on linear switches

With linear switches, total travel is relatively easy to notice because there is no tactile bump.

A 4.0 mm linear often feels traditional and smooth, while a shorter 3.2 mm linear can feel more compact and direct.

11. Total travel on tactile switches

With tactile switches, the position and shape of the tactile bump also matter.

Two tactile switches with identical 4.0 mm total travel can feel completely different if one has an early bump and the other has a mid-travel bump.

12. Total travel on clicky switches

With clicky switches, the clicking mechanism determines where a major part of the feedback occurs.

Total travel therefore only tells you the full movement distance, not exactly where the click or activation occurs.

13. What is a good total travel distance?

Preference	Good starting point
Short, direct feel	3.0–3.4 mm
Compact but versatile	3.4–3.7 mm
Traditional mechanical feel	3.8–4.0 mm
Lots of travel	Around 4.0 mm or more

There is no universally best number. Personal preference matters more than a single ideal specification.

14. Is 4.0 mm total travel a lot?

No. Around 4.0 mm is actually a very traditional value for mechanical keyboard switches.

Many classic switches use roughly this amount of travel.

Compared with modern short-travel or speed-oriented designs, however, 4.0 mm can feel deeper.

15. Is 3.0 mm total travel better for gaming?

Not automatically.

Shorter total travel can feel direct because you reach the bottom sooner, but the registration point is still determined by pre-travel.

For gaming, important factors include:

• pre-travel;
• actuation force;
• reset point;
• switch technology;
• keyboard latency.

Total travel is therefore mainly a feel-related specification.

16. What is a long-pole switch?

Some switches use a long-pole stem that reaches the bottom of the housing earlier.

This can reduce the effective total travel compared with a traditional switch.

Long-pole switches may therefore:

• bottom out sooner;
• feel more direct;
• produce a more pronounced bottom-out sound.

17. Total travel on Hall Effect switches

On Hall Effect switches, the actuation point can often be adjusted through software, but the physical total travel is usually still determined by the mechanical construction of the switch.

You may therefore configure actuation at 0.5 mm while the switch itself can still physically move 3.5 or 4.0 mm.

18. Common mistakes

• Confusing total travel with pre-travel: pre-travel ends at actuation, while total travel ends at bottom-out.
• Assuming shorter total travel always means faster: actuation distance matters more for registration.
• Calling 4.0 mm slow: this is a traditional mechanical-switch value.
• Looking only at travel: force and switch type also have a major effect on feel.
• Assuming all 4.0 mm switches feel the same: bump position, springs and force curves can differ significantly.

Conclusion

Total travel is the full distance a keyboard switch can move from its resting position until it bottoms out.

Around 4.0 mm generally feels traditional and familiar, while shorter values such as 3.0–3.5 mm can feel more compact and direct.

Total travel does not determine when the key registers. For that, pre-travel is the more important specification.

For a proper comparison, consider total travel together with pre-travel, actuation force, bottom-out force, spring design and switch type.

Browse our linear switches, tactile switches and clicky switches to compare different travel profiles.