>>2360864I guess you could also try to remember it as the number of kilograms in 7000 grams. Or the number of metres in 7000 millimetres. Or even the number of volts in 7000 millivolts, but that might confuse you with the difference between 110V and 230V.
I know, it's quite hard to learn metric unit conversions. Pic related is much more straightforward.