We primarily use metric measurements, but we also convert to the imperial measurement afterwards. For example:

  • Cut the fabric to 20cm (7.9in) in length.
  • The car was travelling at 150km/h (90mph).
  • You’ll need a 200ml (6.7fl oz) can of spray paint.
  • The end result will weigh around 500g (1.1lbs).
  • The temperature required is 37°C (99°F).

For some topics, worldwide standards may dictate that imperial measurements be used. When such an industry standard exists, you should follow it in your tutorials.