WatchFitter checks how a watch will fit your wrist.
It's a free web tool. Give it your wrist size and a watch you know fits, and it tells you whether any other watch will wear smaller, about right or bigger, and why.
Your benchmark. Goldilocks means “just right,” and this watch is, so it sits dead center.
Goldilocks, leaning bigger. Still a good fit.
Bigger than your benchmark. A 43.2 mm case against your 36 mm.
How it works
Grab a ruler.
Measure across the top of your wrist, just behind the bone. It takes thirty seconds, and you do it once.
Start with a favorite.
Pick the watch that wears best on you. Search 126,000 watches for it, then paste in text from its specs page.
Check any watch.
Add another watch and see why it lands in Smaller, Goldilocks or Bigger, down to the millimeter.
Read more about our methodologyOur methodology
How WatchFitter decides, in plain words.
Each size gets a score.
We look at four sizes: lug-to-lug, width, thickness and weight. Each gets a score. Zero means it matches your benchmark watch, below zero means smaller, and above zero means bigger. The score tops out right at the limits you set.
Small differences count less.
A millimeter or two away from your benchmark barely counts. Close to your limits, every millimeter counts a lot more. Being smaller only counts against a watch when it gets near the smallest size you set.
The worst size decides.
We don’t average the sizes. Whichever one is furthest off sets the verdict, so a thin case can’t make up for lugs that are too long.
You pick what matters most.
Put the four sizes in order and the ones lower on your list count for less, or count them all the same. Either way, your limits stay where you set them.
Lugs can’t hang over.
We check lug-to-lug against the flat part of the top of your wrist, and a rounder wrist has less of it. If the lugs would stick out past the edge, the watch is Bigger, however well the rest fits.
Weight, and a little slack.
Any weight inside your range is fine. Only going outside it counts. The Forgiveness setting adds a little slack to every limit, so being one millimeter over doesn’t sink a watch.
Common questions about watch fitCommon questions
Is there a tool that shows how a watch will fit my wrist?
Yes. WatchFitter is a free web tool for exactly this. Measure your wrist once, add a watch that already fits you well, and it checks any other watch against both. Each one lands as Smaller, Goldilocks or Bigger, with the reason in millimeters.
Why isn’t case diameter enough?
Two 40 mm watches can wear very differently. Lug-to-lug, the distance from the tip of the top lugs to the tip of the bottom ones, decides whether a watch hangs over your wrist. Thickness and weight change how it sits and feels. WatchFitter checks all four.
How do I measure my wrist for a watch?
Use a ruler straight across the top of your wrist, just behind the bone. That flat width is what the lugs have to fit within. A tape around the wrist gives the circumference, which matters for straps but says less about how the case will sit.
How can I tell if a watch is too big for my wrist?
The clearest sign is lugs that reach past the flat top of your wrist. A thick case or a heavy watch can also wear bigger than its diameter suggests. WatchFitter checks each of these against your wrist and a watch you know fits.
Which watches can I check?
Any watch whose sizes you can find. Search about 126,000 watches by brand, model or reference, then paste text from its specs page or type the sizes in.
Is it free? Do I need an account?
It’s free, with no account. Your watches stay in your browser, and you can export them to a file.
What does WatchFitter keep about me?
Your wrist and ranges stay in your browser. If you choose to share, each watch you add adds one to a count of how often that watch is checked; your list itself is never kept. Sizes you type or paste in are sent on their own, under a code made just for that watch, so they can’t be linked to your other watches or to you. Your internet address isn’t stored. Nothing you share is shown on the site; only totals across everyone are used, to fill in missing sizes and improve search. When a search can’t find your watch, what you typed is kept so the watch can be added. Visits are counted with Google Analytics.