US Miles per hour conversion to knots

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Stephen Mooney
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US Miles per hour conversion to knots

Post by Stephen Mooney »

Hello all

Can anyone give me a simple comparison of miles per hour (US) to knots. I use as a rough guide 1 knot equals 2km/hour. :macm:
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kmclemore
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Post by kmclemore »

Multiply your MPH by 0.86898 and you'll have the speed in knots.

BTW, there are lots of useful calculations here, as well as an interesting horizon chart.
Last edited by kmclemore on Fri Apr 14, 2006 9:46 pm, edited 1 time in total.
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Hamin' X
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Post by Hamin' X »

1 mph = 0.868976242 knots

1 knot = 1.15077945 mph
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Stephen Mooney
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Post by Stephen Mooney »

Thanks for your help.
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Bill at BOATS 4 SAIL
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Post by Bill at BOATS 4 SAIL »

I just use 1.1
Take the mph, move the decimal point over one, and add.
8 mph = 8.8
10 mph = 11
12 mph = 13.2
15 mph = 16.5
20 mph = 22
8,000 mph = 8,800
2,000,000 mph = 2,200,000
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Helaku
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Post by Helaku »

Bill at BOATS 4 SAIL wrote:I just use 1.1
Take the mph, move the decimal point over one, and add.
8 mph = 8.8
10 mph = 11
12 mph = 13.2
15 mph = 16.5
20 mph = 22
8,000 mph = 8,800
2,000,000 mph = 2,200,000
8 mph = 6.95 knots
10 mph = 8.68 knots
12 mph = 10.42 knots
and so on.
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Catigale
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Post by Catigale »

....and tell the Admiral you need to buy 'Master and Commander' on DVD to show the kids the derivation of 'knots' for nautical speed.

...and to learn how to pick a pocket or two...
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Bill at BOATS 4 SAIL
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Post by Bill at BOATS 4 SAIL »

Helaku is right. I was going in the wrong direction.

[quote="Helaku8 mph = 6.95 knots
10 mph = 8.68 knots
12 mph = 10.42 knots
and so on.[/quote]

10 knots = 11 mph ( + / - )
12 knots = 13.2 mph ( + / - )
2,000,000 knots = 2,200,000 mph ( + / - )
and so on
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richandlori
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Post by richandlori »

Catigale wrote:....and tell the Admiral you need to buy 'Master and Commander' on DVD to show the kids the derivation of 'knots' for nautical speed.

...and to learn how to pick a pocket or two...

Ha ha..I just watched Master and Commander last week with my two kids (7 and 8yrs old) and they LOVED it. Now The admiral wasn't home, so that is how I got away with watching it....or it would have been something like Herbie goes to Montecarlo.....yikes
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Catigale
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Post by Catigale »

Which of the kids is the lesser of the two weevils??

(Subject to the requirements of the service...)
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Terry Chiccino
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Post by Terry Chiccino »

Actually the closest conversion is: 1 nautical mile =1 and 1/7th statue miles! Therefore 7 nautical miles=8 statue miles.
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Frank C

Post by Frank C »

Catigale wrote:Which of the kids is the lesser of the two weevils??
(Subject to the requirements of the service...)
:)
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