Weight

[BogJuan]

I always get the weight wrong because of 2 things. I am American and know nothing about KG. Also, I weigh way more than people think I do. It's hard to tell what people are supposed to weigh in the game... especially when you are from a country that uses pounds.

[Le Sauveteur]

You don't have to guess, if you have to check weight, they have a document with the usual weight written on it. If the numbers don't match : Inspect.
For what you know, they could be kg, pound, coconuts, or whatever

[Mandrake]

You don't have to guess the entrant's weight. There are some scales located at the bottom-right corner of the booth. It will always display a number for every entrant that you can compare with the number on the document. If they don't match, inspect, interrogate, and search.

[BogJuan]

Thank you

Didn't see the scales.

[Toise]

The game will always give an inspect-able value, otherwise how would you be able to interrogate them.

Besides being american is no reason to "not understand KG"
It is a unit of measurement like pounds, all it is is a different size, and any country can use any unit. I'd be surprised if any scales you own didn't include a metric measure as well (electric will have a button somewhere to switch, mechanical will have a second scale)
If anything requires accuracy so a number of decimal places, even the US will use metric measure. I know this as I (a Brit) work with Americans daily, and the measurements we exchange and calculate in are in metres.

I suggest learning at least conversion between U.S. imperial and Metric

[emfiliane]

Oh, now this finally makes sense. I was thinking, "Well, she looks like she could be 45kg, she is pretty skinny" and completely missed that scale and got several citations for it. Thanks for pointing it out.