Mph to kph (1 Viewer)

[funflair]

Never look at the speedo dial, head up display in the car and TomTom in the MH. And certainly don't do 6 x or any x tables as I go.

 

[Baggers53]

My wife wrote a little list of the major speed limits that you see in France.
Kmh to Mph. I put this where I can see it whilst driving.....very easy!!!

 

[kelv]

thanks every one for all the replies it has given me a lot to think about

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[Wyaye wires]

Multiply Kms by 6 and remove a zero from the answer and you'll be close enough...

eg. 100 kph x 6 = 600 minus a zero = 60mph

A very easy and quick mental calculation...

 

[Detnor]

Another way is to add on half of the mph figure then the 1st number of the original number Its not exact but near enough
Ex:
50mph = 50+25 +5 = 80.
70mph = 70 +35 +7=112

Just reading this, the reverse works, (as an approximation) simply half the kph and add the first digit
70 kph halved = 35 and add the 7 = 42mph