Weight it!
One medium-sized red onion typically weighs around 5-6 ounces (140-170 grams). However, the weight can vary depending on the size and variety of the onion.
How much does a medium sized onion weigh?
Just weighed an average red onion at 13.3 oz or about 377 g.
Zero
about 50g
There are about 2 slices of red onion on a Big Mac
I regularly see onions from about 1 ounce, right up to large Walla Walla onions weighing over a pound. -Please tell me how anyone can possibly calculate what an "average onion " is. -Then I will be able to answer your question.
One half of a weight of an onion multiplied times 2.
A medium red onion typically weighs between 5 to 7 ounces (about 140 to 200 grams). The weight can vary slightly depending on the specific onion and its moisture content. When cooking or using in recipes, it's often best to weigh them for accuracy, especially in larger quantities.
Most are about 3 to a pound. So 5 oz each on average.
Averages about 16 ounces
The Red Onion was created in 1892.