One-and-three-quarter yards ;-)

For every day purposes, 1m=1yard, 30cm=1ft, and 1cm = a small half inch works well enough. But apart from the yard:metre equivalence, it is a matter of conversion rather than instant visualisation.

1m is close enough to 39inches, so 60m = 60yards +10%, ie 66 yards.

The one advantage of the metric system is the ability to switch between volume and weight - 1l = 10cmx 10cmx10cm = 1kg, provided that the 1l is of something more or less the density of water. Makes calculating, for example, how much gravel to buy, much easier than in imperial. And converting pot sizes from diameters to volumes!