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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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km per hour

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "km per hour" is correct and usable in written English.
It is typically used to express speed or velocity, particularly in contexts related to travel or transportation. Example: "The speed limit on this highway is 100 km per hour."

✓ Grammatically correct

Encyclopedias

News & Media

Science

Wiki

Formal & Business

Human-verified examples from authoritative sources

Exact Expressions

59 human-written examples

Haiyan's winds continued to increase through the day, rising to 195 miles (314 km) per hour with gusts measured at 235 miles (378 km) per hour.

In 1963 the women's record stood at just over 89 miles (143 km) per hour, some 19 miles (30 km) per hour slower than the men's record.

This device is useful for very low airspeeds, below about 5 miles (8 km) per hour.

Speeds of up to 60 miles (96.6 km) per hour were attained.

On land it can travel over roads at 45 miles (70 km) per hour.

They can reach speeds of 80 miles (130 km) per hour.

For a short stretch the Rocket achieved a speed of 36 miles (58 km) per hour.

In early 2013 some trains began operating at up to 200 miles (320 km) per hour.

Trains originally reached top speeds of 130 miles (210 km) per hour, but improvements in track, train cars, and other components have made possible maximum speeds of between 150 and 185 miles (240 and 300 km) per hour.

At sea the vehicle could maintain a speed of 5 knots (about 6 statute miles, or 9 km, per hour), and on land it could go 50 miles (80 km) per hour.

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Human-verified similar examples from authoritative sources

Similar Expressions

1 human-written examples

Friedrich Petersen decided that the ship would travel no faster than 12 knots (14 miles [22 km] per hour).

Expert writing Tips

Best practice

Use "km per hour" when specifying speed limits, travel speeds, or wind velocities in contexts where the metric system is standard. Make sure your audience is familiar with this unit of measurement.

Common error

Avoid interchanging "km per hour" with "miles per hour" (mph) within the same context without clear conversion, as it can lead to confusion, especially in regions where mph is the standard unit.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

80%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "km per hour" functions as a unit of speed, specifying the distance traveled in kilometers during a one-hour period. As Ludwig AI indicates, it's widely used and accepted in English.

Expression frequency: Very common

Frequent in

Encyclopedias

26%

News & Media

25%

Wiki

13%

Less common in

Science

13%

Formal & Business

7%

Reference

0%

Ludwig's WRAP-UP

In summary, "km per hour" is a standard unit of speed, equivalent to "kilometres per hour", and commonly abbreviated as kph. Ludwig AI confirms its correct usage across diverse fields such as encyclopedias, news, science, and general information. While versatile, ensure unit consistency and avoid mixing with miles per hour without conversion. It's a neutral term suitable for both formal and informal communications. When writing "km per hour" aim at being clear, direct and make sure your audience is familiar with the metric system.

FAQs

What is another way to write "km per hour"?

You can use the abbreviation "kph" or spell it out as "kilometers per hour".

How do I convert "km per hour" to miles per hour?

To convert "km per hour" to miles per hour, multiply the "km per hour" value by 0.621371.

When should I use "km per hour" instead of miles per hour?

Use "km per hour" in countries that use the metric system, such as most of Europe, Asia, and South America. Use miles per hour in countries like the United States and the United Kingdom.

Is "km per hour" the same as "kilometres per hour"?

Yes, "km per hour" is simply an abbreviated form of "kilometres per hour", and both terms are interchangeable.

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Authority and reliability

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Real-world application tested

Most frequent sentences: