Okay, so I was working on this writing project, and I kept tripping over “might as well” and “may as well.” I mean, they sound so similar, right? I googled them, and my brain just about exploded with all the grammar jargon. So, I decided to figure it out my own way.

My Little Experiment
First, I grabbed a notebook and jotted down a bunch of sentences using both phrases. Stuff like:
- “I’m already soaked, I might as well keep walking in the rain.”
- “The store is closed, we may as well go home.”
- “Since no one reply my message, I might as well play game.”
- “This task need me to stay, so I may as well do something valuable.”
Then, I started swapping “might” and “may” in each sentence to see if they still made sense. Some did, some didn’t. It was kind of a mess, to be honest.
So, I took a break, made some coffee, and thought about it some more. I realized I needed a simpler approach. I decided to focus on the feeling behind each phrase.
Breaking It Down, My Way
I figured “might as well” felt a bit more like… resignation? Like, you’re not super thrilled about the situation, but you’re going along with it anyway. “Might as well” feels like something already has a tiny little bad result. And you don’t care too much about it, just let it go.
And “may as well” felt more like a suggestion, a more neutral option. Like, “Hey, we could do this, it’s not a bad idea.” “May as well” feels like you are facing something and you are not sure what you could do with it. Then you give out an option.

Putting It to the Test
I went back to my sentences and applied this new “feeling” test. It actually helped a lot!
For example, “I’m already soaked, I might as well keep walking in the rain” felt right because I was already wet – a bit of a bummer situation. But “The store is closed, we may as well go home” worked because it was just a suggestion, a logical next step. It seems both of them are all making sense, because they are almost same.
So, that’s my super unscientific way of figuring out “might as well” and “may as well.” It’s more about the vibe of the sentence than any strict grammar rule, at least for me. May be I am wrong. But it works for me now.