How do I get Siri to respond in metric?

How can I get Siri to respond in metric when I ask questions like “How tall is Mount Fuji”, “How much does an elephant weigh?”, or “How tall is Brad Pitt”, It tells me the answers in feet, pounds and inches, which are all meaningless to me. Strangely, it tells me temperatures in Celsius. I’ve looked all through settings and can’t seem to find anything.


[Re-Titled by Moderator]

Original Title: Siri on metric?

iPhone 16

Posted on Jan 13, 2026 2:52 PM

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Posted on Jan 14, 2026 1:35 AM

If Siri may still give feet/pounds for celebrity heights or animal weights even after changing settings, because the responses are driven by how the question is phrased or the database it pulls from — it doesn’t always convert everything to your units.


If Siri still insists on imperial for those fun trivia facts:


Ask Siri to convert (e.g., “How tall is Mount Fuji in meters?” instead of just “How tall is Mount Fuji?”). Siri will usually obey the “in meters/kg” part explicitly.



Language + locale pairing

  • English (India) → more likely metric
  • English (US) → imperial almost always



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Question marked as Top-ranking reply

Jan 14, 2026 1:35 AM in response to RobM77

If Siri may still give feet/pounds for celebrity heights or animal weights even after changing settings, because the responses are driven by how the question is phrased or the database it pulls from — it doesn’t always convert everything to your units.


If Siri still insists on imperial for those fun trivia facts:


Ask Siri to convert (e.g., “How tall is Mount Fuji in meters?” instead of just “How tall is Mount Fuji?”). Siri will usually obey the “in meters/kg” part explicitly.



Language + locale pairing

  • English (India) → more likely metric
  • English (US) → imperial almost always



Jan 14, 2026 6:32 AM in response to SravanKrA

SravanKrA wrote:

If Siri may still give feet/pounds for celebrity heights or animal weights even after changing settings, because the responses are driven by how the question is phrased or the database it pulls from — it doesn’t always convert everything to your units.


Various complaints about this Siri misfeature around the ‘net.


Settings aside, prompts aside, requests in the Siri command for meters aside, Siri still serves up freedom feet and probably even furlongs.


I’d expect the language corpora are just loaded with feet and furlongs, and not units more sensible.


To the OP: log some feedback. Since there isn’t a Siri category, probably into iPhone hardware.


Maybe this changes with the recently-announced Google Gemini backend migration?

Jan 14, 2026 1:05 AM in response to RobM77

RobM77 wrote:

I’m in the UK. We went metric in the 1970s.

That is debatable. I am still 5ft 9in, 11stones 4lb (whatever tte doc wants), I drink pints, 30mph speed limits, hence UK units as opposed to metric. We didn't defeat Napoleon for nothing.

Siri however is a website trawler and may not convert an american article about Brad Pitt. Ask Siri how tall is William Pitt the elder.

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How do I get Siri to respond in metric?

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