Millimeters is length, grams is weight. Depending on how thin a string you can make it in, 50 grams can be pretty much any length.
You can't compare these as grams are weight and millimeters are length.
50km is 50 million millimeters.
50 kilometers = 50,000,000 millimeters
10 teaspoons of water is approximately 50 grams
500 millimeters
50 kilometers is 50,000,000 millimeters.
5 cm = 50 millimeters
Grams measure mass, while millimeters measure length. The conversion between mass and length is not straightforward. To convert grams to millimeters, you would need to know the density of the substance in question.
50 grams = 1.764 ounces
Centimeters are larger than millimeters; there are 5 centimeters for every 50 millimeters.
5 centimeters is 50 millimeters.
There are about 50 Calories in 2oz of light tuna in water.