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gattilorenz

Naive, irrelevant question. Is kph the correct way to signal "kilometers per hour" in English?

I think I have seen this before in videogames maybe. Is it an US-only thing?

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According to https://en.wikipedia.org/wiki/Kilometres_per_hour,

> Internationally, km/h is the most commonly used unit of speed on traffic signs and speedometers

kph isn't incorrect, but it's not as commonly used.

"kph" makes no sense - kilos per hour? Offical SI notation is km/h, and IMO that's what should be used.

...or kmph

Either "kph" or "kmph" is a casual, sloppy, but common way, along with abbreviations like "gms" (grams) or "mts" (metres). None of these are unusual in the UK.

The correct way is km/h, or (occasionally, for mathematicians or scientists) km·h⁻¹ or km h⁻¹.

I have never seen 'mts' used before, why would you, when 'm' is both more concise, and more correct?

I may have seen 'gms', but I can't think when.

I have seen kmph before, but not for several years.

'Kph' it's definitely current in spoken language, but increasingly rare in written form.

> I have never seen 'mts' used before, why would you, when 'm' is both more concise, and more correct?

I don't know, but it's particularly common with construction materials. You can search "mts" and see many sites using the abbreviation.

I don't get it. 'm' is already as short as it gets. Why invent your own short-hand?

I'd say it's the most common way that it's said in Australia.

I’d call it moderately rare in Victoria.

It's pretty common in the UK, not as common as mph mind.

That's a weird way to write kilometres per hour.

kilometers per hour.

Abbreviations using the first letter of each word are very, very common.

Pretty sure they know that and it was a joke about mph.

US uses mph for miles per hour, so it's natural to use kph.

I have seen kmph used a lot

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