There are different ways to mesaure sizes, lengths and dimensions in different places. Since this site is multilingual, here is a small guide to help you better understand! 🙂

Miles/Kilometers
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A Swedish “mil” (Sw. mile) was in the old days = 6000 “famn” (fathoms) = 18000 “aln” (ells) = 36000 “fot” (feet) = 10.688 meters = 6.64 miles.

1 English “mile” (US & UK) = 1760 yards = 5280 feet =  1609.344 m. (1 yard = 91.44 cm).

Today in the metric system : 1 “mil” = 10 kilometers = 6.2 miles.

In Sweden instead of MPH we measure in Kilometers per hour. So 90 KM/H = 52 MPH

Time
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Year = 12 Months ( 48 Weeks ( 336 Days ( 8064 Hours ( 483 840 Minutes ( 290 304 00 Seconds ( 290 304 000 0 Jiffys ) ) ) ) ) )
Month = 4 Weeks ( 28 Days ( 672 Hours ( 40 320 Minutes ( 2 419 200 Seconds ( 241 920 000 Jiffys ) ) ) ) )
Week = 7 Days ( 168 Hours ( 10080 Minutes ( 604 800 Seconds ( 60 480 000 Jiffys ) ) ) )
Day = 24 Hours ( 1440 Minutes ( 86400 Seconds ( 8 640 000 Jiffys ) ) )
Hour = 60 Minutes ( 3600 Seconds ( 360 000 Jiffys ) )
Minute = 60 Seconds ( 6000 Jiffys )
Second = 100 Jiffys
A jiffy = 1/100th of a second.

Weight
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10 Kilo = 310 lbs

Years
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1 – Year
5 – Quinquennium
10 – Decade
100 – Century
1000 – Millenium