What does anybody consider to be safe ice for one person, two people, a small group etc.
We have guys out on a couple of lakes right now with 1 1/2-2 inches of ice. I won’t go out on less than 3-4 inches of good black ice, and even then won’t stand right next to somebody else. I will admit that as I get older I get more cautious because I heal/recover slower.

I got to have minim of 4” .

My son in law and the neighbors had a hockey game on the ice yesterday. I was out there too. It was smooth as glass. About 3” of ice so far.

If it holds me up, there's enough. A hockey game on 3" is illustrative of the strength of good, clean first ice. Not all ice is good quality, though.
It always bugs me when I tell people I've been ice fishing and they ask me if there's enough ice. Umm, here I am, so yes.

There is only one way to know: bring a spud and check it out.

I'm a 6" guy.

Captn Tony: "I'm a 6" guy.
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+1

I'm a 6'4" guy. I like 6 inches of good ice.

Captn Tony: "I'm a 6" guy.
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This is a family site.

carmike: "

Captn Tony: "I'm a 6" guy.
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This is a family site. "

I was gonna... but now I’m not going to. Lol.

On the original topic ... 6” ICE THICKNESS is about right :)

Captn Tony: "I'm a 6" guy.
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Yup, better safe than sorry!!
Remember, whether you have 4" or 6" of ice, the thickness is not the same everywhere.