How many pieces would you trade for a queen

queen for a pawn is a good trade

I've traded for 8 points a number of times. I think it has more often been a disadvantage for me, but because I was usually the better player when I did it I still won. When I've done it against better players, I don't think I've usually won. It's fun, but if I were playing in a tournament I would be very hesitant unless the position made it a clear win.

It depends on the position.
Here a recent WC game.
https://www.chessgames.com/perl/chessgame?gid=2127373 

For this: https://www.chess.com/game/live/63469645401

I would not trade for a queen, I would do the opposite. I’ve traded a queen for multiple pieces many times. I have traded it for 2 rooks, a rook and bishop, a rook and knight, and one time accidentally for 2 bishops and a knight.

it could really depend on the position or material or something els

generally:

three pieces > queen

two rooks = queen

rook and piece and pawn (depends) queen

bishop (depends) knight

rook > bishop

two bishops and two pawns > rook and knight (in open positions)

i think

Mosly only for another queen or two rooks.

Everything else is too hard to hold together.

Replying to @heavyop's comment, I've actually done what he said he would many times. I've played h5 to defend e4 sometimes (when I was around 400 elo), and I was placed against the user @JoseNilkando, who normally played the wayward queen attack. He played e4, I played h5 against him, and he took the pawn, allowing me to take his queen on the SECOND MOVE. Later, he used the fork king and rook where queen can take knight tactic, where a bishop was targeting the forking square. However, I had placed a knight to defend the square, so I just ended up winning a bishop, as he took the knight. Then I won his other bishop, both rooks, and his other knight then he resigned. Later, someone else played h5 against him, but he didn't take the pawn that time. Maybe he learned from my game, but it seems like he's losing a bunch now. I went up using other tactics, but he just was losing a bunch.

Here is a game where I traded a queen and pawn for a rook and bishop.

I kept all of my pieces very connected by setting up a fortress and missed a lot of game-winning moves. I finally got a royal fork and my opponent resigned