Mechanical vs Membrane Keyboard: Does It Actually Make You Type Faster?

The honest answer first

A mechanical keyboard will not, by itself, add meaningful WPM to your typing speed. Technique — finger placement, not looking at the keys, consistent practice — accounts for the overwhelming majority of how fast you type. Hardware is a smaller, real, but secondary effect: mostly about comfort, consistency, and reduced fatigue over long sessions rather than a direct speed boost.

What keyboard hardware actually changes

Actuation feedback. Mechanical switches give a distinct tactile or audible point where a keypress registers, so you know a key “took” without bottoming it out fully. On a mushy membrane keyboard, some typists press harder and longer than necessary because the feedback is less clear — that can add up to fatigue, not really speed.
Key travel and actuation force. Lighter, shorter-travel switches (common on mechanical and low-profile boards) can shave milliseconds off each keystroke and reduce finger strain over a long session. Over a single word this is imperceptible; over thousands of words a day, some people do report less hand fatigue.
Rollover and anti-ghosting. Cheap membrane keyboards sometimes fail to register certain simultaneous key combinations (a limitation called “ghosting”). This mostly matters for gaming, but a fast typist who overlaps keystrokes — pressing the next key before fully releasing the last — can occasionally hit this on lower-end hardware. Most keyboards sold in the last decade handle normal typing rollover fine.
Consistency across keys. Cheaper membrane keyboards can have a mushier or less consistent feel on outer keys (pinky-reached ones especially) than on the home row. Consistent actuation across the whole board matters more for accuracy than any single spec.

What it does not change

Whether you’re looking at the keyboard.
Whether your fingers return to home row after reaching for a key.
Whether you know where every key is without thinking.
Whether you type common words and letter pairs from muscle memory versus consciously hunting for each key.

Every one of those is the actual bottleneck for the average typist’s WPM, and every one of them is a technique problem, not a hardware problem. A beginner on a $200 mechanical board using two-finger hunt-and-peck will still lose to a touch typist on a ten-year-old laptop keyboard.

So is it worth buying one?

If you type a lot — for work, for fun, competitively — a good keyboard (mechanical or a well-built low-profile membrane/scissor board) is worth it for comfort and reduced fatigue over long sessions, the same way a good office chair is worth it even though it won’t make you smarter. Just don’t expect it to move your WPM the way that fixing your technique will.

Where the actual speed gains come from

If you want to type faster, in order of actual impact:

Learn proper touch typing technique — the touch typing lessons build finger placement and home-row discipline from scratch.
Practice consistently — a little daily beats a lot occasionally; see how long touch typing actually takes to learn for a realistic timeline.
Drill the specific things that slow you down — symbols and code for programmers (the Code Typing game), raw speed under pressure (the typing games).
Then, only then, worry about hardware — a comfortable, consistent keyboard removes friction, but it can’t replace the first three.

Measure the difference yourself: take the typing speed test before and after a few weeks of focused technique practice, and compare that gain to what switching keyboards alone would realistically get you.