as often as possible
You cannot convert measurements to weights or weights to measurements
to get the right measurements of ingredients for making more or less of what you are cooking
You can convert measurements using online services such as onlineconversion.com. Also, many scientific calculators have programs which convert measurements.
Sorry, but you can't. Meters are distance measurements and kilograms are weight measurements
It depends on what the measurements are.
2 x 5
You don't. They have to do with different types of measurements.
Because you have to simplify your measurements to make sure your drawings are precise.
You need to know the density of the substance.