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How to change your Apple Watch to metric measurements

One thing changing from Imperial to metric won't do is make it look like you're exercising enough.

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It's easy to have your Apple Watch show you all of your activity details in miles or kilometers, whichever you prefer — except that Apple doesn't make it obvious how to do it.

No matter what Apple device you get, you will be asked questions about what region you're in as you set it up. The entire reason is so that many settings can be correctly set for you, and that includes which units you prefer.

Set up your Apple Watch in France and those nagging activity stats are going to use metric measurements. Set up the same Watch in New Jersey, and it'll be recommending how many miles you should walk this month.

The idea is that it works the way you do, and usually it's right — but not always. Maybe you've moved regions. Or maybe you're sharing activity data with a lot of friends and while your Watch translates their achievements into miles, you need to know the kilometers for that heated discussion over a restaurant table.

And then you might well just happen to prefer Imperial over metric measurements. Apple makes it easy to make the switch — but it does not make it obvious how to do it at first glance.

First, use your iPhone

This is one of those Apple Watch settings that has to be done on your iPhone. And it's one of those Apple Watch settings that you do not control in the iPhone's Apple Watch app.

Instead, open the Health app. Then:

  • Tap on Activity
  • Scroll down to Walking + Running Distance and tap
  • Scroll down to Unit and tap
  • Choose between km and mi for kilometers and miles

If you do this with your Apple Watch's Activity screen open and scrolled down to your Total Distance today, you'll see the units change instantly.

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