Has been for quite a while though.
"The (international) inch has been exactly 25.4 mm since July 1959. At
this point in time the (international) yard was redefined as 0.9144
metre - until this time the ratio between the US yard and the metre was
different to the ratio between the UK yard and the metre. For more
information, see Engineering Metrology by K J Hume (2 ed) Macdonald
London 1967. The American inch changed by 2 millionths of an inch and
the UK inch by 1.7 millionths of an inch. The international inch falls
mid way between the old UK and US inch."
No other software needed, don't even need to change from fractions to
decimals - just type "65 7/8 inches in mm" or "65.875 inches in mm" into
a Google search box. You get back:
(65 7/8) inches = 1 673.225 millimeters
65.87500 inches = 1 673.225 millimeters
Or type "71.375 inches in mm" or "71 3/8 inches in mm" and get:
71.37500 inches = 1 812.925 millimeters
(71 3/8) inches = 1 812.925 millimeters
Hypothyroidism is a seriously debilitating condition with an insidious
Just throw away all of your ancient imperial measuring items and switch
entirely to the use of millimetres. This avoids these silly fractions
and conversions which will almost certainly lead to errors.
You can buy metric only tapes quite easily now or even dual ones if you
want to continue to be confused
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