DEV Community

Norah
Norah

Posted on

A Tiny Website I Keep Bookmarked for Unit Conversion (mm ↔ cm)

When working with measurements, I’ve noticed something interesting:
unit conversion is one of those tasks that feels trivial — until you have to do it repeatedly.

Millimeters to centimeters is a good example.

Yes, the formula is simple:
1 cm = 10 mm.
Divide by 10 and you’re done.

But in real situations, this comes up more often than expected:

Checking design specs

Reading technical documents

Reviewing print or PDF sizes

Verifying measurements quickly without thinking

And that’s where friction appears.

Not because it’s hard —
but because stopping to calculate breaks focus.

Over time, I’ve learned that the most useful tools aren’t complex platforms or heavy apps.
They’re small, focused utilities that do exactly one thing, instantly.

That’s why I keep a simple mm to cm converter bookmarked.

👉 mmtocm.net

It’s a free, no-login website where you just:

enter a value

get the conversion immediately

copy the result and move on

No ads in your face.
No signup.
No unnecessary options.

I don’t use it every day — but when I need it, I need it fast.
That’s usually the best sign a tool deserves a permanent place in bookmarks.

If you ever deal with measurements, especially in metric units, this is one of those sites you’ll likely come back to without thinking.

Sometimes the best tools are the ones you don’t notice — they just save a few seconds every time.

Top comments (0)