Question 1

How do I convert mph to km/h?

Accepted Answer

Multiply by 1.609. 60 mph = 96.6 kph. Quick estimate: add 60% to mph for kph.

Question 2

What is 70 mph in kph?

Accepted Answer

70 mph = 112.7 kph. Common highway speed limit in the US. Most UK motorways are 70 mph.

Question 3

What's the fastest speed possible?

Accepted Answer

The speed of light (299,792,458 m/s or about 670 million mph) is the universal speed limit. Nothing with mass can reach it.

Question 4

Why do pilots and sailors use knots?

Accepted Answer

One knot = one nautical mile per hour. Nautical miles relate directly to Earth's latitude (1 nm = 1 minute of latitude), simplifying navigation.

MPH to Kmh Speed Converter - Free Online Tool

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