Oh, when HUD is up (usually I play no-hud and take notes) it does have a "Pot Odds" section of the calculator.

Poker Pot Odds | Using Pot Odds In Poker

"Remember! You should only call if the pot odds are greater than the "card odds" (odds of completing your draw)."

So in a half-pot bet into a pot of would be 1:3 implied odds. you'd need card odds of 1:2 or have the nuts to make the call.