Everything Metric - Auto Unit Converter

Another one that doesn't work properly. Even with the watch mode enabled, it only converted the first line of a recipe and ignored everything afterwards.

I do not know where it works but on Zillow for example - does not convert sqft to m2... Just does not work...

Looks nice, but inaccurate for my needs (as a motoring journalist). Fuel consumption conversion (from MPG to L/100km) was out by a litre or more, and it was also unable to discern that 'lb-ft' is a measurement of torque, giving me instead a conversion for the 'lb' part of 'lb-ft' -- which meant I was getting a weight measurement, not a torque measurement.

Good idea, but it does not work for me on Quora (which is why I installed it), which also prevents Form History Control from working.

Excellent idea but it doesn't seem to catch everything. For example "6-foot-8" and "6'8" don't get converted, but "6-foot-8-inch". It's also a little bit inconsistent. Heights and lengths, if they get converted, get replaced. Weights get left alone and explained in brackets afterwards like:【141 kg】. The brackets are a good idea so you can see what has been changed. I'm finding now it's changing things I'm reading to into an unpredictably mix of imperial-only, metric-only and sometimes both. As I said, great idea, but it needs to be developed a bit more to catch all of the various ways that Americans write imperial measurements and a consistent approach to replacement or addition would be good as well.

I was mostly wanting this to convert the built in distance on Google maps without having to manually change units. It doesn't appear to do that, although it works fine for static distances/measurements displayed on webpages. Just not what I was looking for.