> I think most people in the UK use a pretty mixed up set of measures. I agree. But for science and engineering (where metric is really useful), I believe tha

> I think most people in the UK use a pretty mixed up set of measures. I agree. But for science and engineering (where metric is really useful), I believe that everything is metric here now. The measures for which we still use Imperial units are ones that generally are just directly and subjectively compared by humans, rather than any real engineering work. Another way of making my claim is that nobody really has to input Imperial measures into a calculator any more, or make any conversions [involving non-metric units] for engineering purposes. I suppose there are some exceptions (eg. BMI), but these calculations are generally isolated and have no wider unit-incompatibility impact.