Length, weight, temperature, volume, area, speed, time and data. Type once, see it in every unit at the same time.
30.48 Centimetre
US cups and gallons are smaller than UK ones. KB and MB here mean 1000, like hard drive boxes; KiB and MiB mean 1024, like your OS.
QUESTIONS NOBODY ASKED · ANSWERED ANYWAY
Exactly 30.48 cm. An inch is exactly 2.54 cm, and a foot is 12 inches.
Multiply by 9, divide by 5, then add 32. So 37 °C is 98.6 °F. The other way: subtract 32, multiply by 5, divide by 9.
Storage makers use 1 KB = 1000 bytes. Windows and RAM use 1024, properly called KiB. That is why a 1 TB drive shows up as about 931 GB.
No. A US gallon is 3.785 litres, a UK (imperial) gallon is 4.546 litres. Cups and fluid ounces here are US too.