The answer depends on which characteristic you wish to measure: its diameter, volume, mass, weight, etc.
The basic metric unit for length is the metre. Rivers would be measure in kilometres (1,000s of metres)
The appropriate unit is grams.
Fahrenheit is a customary unit
Dude what the hec
The best unit of customary measurement to measure a candy bar would be ounces. Ounces are commonly used to measure the weight of food items, including candy bars. This unit provides a precise measurement that is easy to understand and compare across different candy bar sizes.
Cm
Seconds
It depends on what you want to measure. Their mass or size?
Pint.
Either inches or millimetres Or centimetres.
Inches.
pounds
Probably Centimeters
Miles.Miles.Miles.Miles.
In most countries, it is customary to measure that in liters.
It is customary to use the kilogram - though that is technically not a weight, but a mass.
no