Metric or imperial?
Each spin picks a quantity and asks what it is in the other system – a mile in kilometres, a pound in kilograms, 180 °C in Fahrenheit. The wrong answers come from the same group, so they are all lengths, or all weights, and guessing by the unit does not work. Press SPIN!:
Your score and your run
Score counts the right answers, In a row the ones since your last mistake, and Best run remembers your longest. Start again clears them:
One part at a time
Length, weight, volume and temperature. Start with the two that come up most and add the others:
Easier or harder
Quiz settings changes how many answers you get and where the wrong ones come from. Take the ones I got right off the wheel leaves only what you still have to learn:
Where it comes in handy
- Recipes from the other side of the Atlantic: a cup, a stick, 350 °F.
- Travel: road signs in miles, the weather in Fahrenheit.
- Physics and maths lessons – the numbers worth knowing by heart.
- A good one to remember: -40 is the same in Celsius and Fahrenheit.
The answers are rounded to two decimals, the way anybody would say them – a mile is 1.609 344 km exactly, and 1.61 is what you need in your head.