Now that the fantasy football season is well underway, there are only two ways to improve your rosters — waivers and trades.

Evaluating a fantasy trade can be a daunting task. Most managers value their players more than their actual worth, especially early in the season. That's where the Week 4 fantasy football trade value charts come in.

The charts can be used as your very own fantasy football trade analyzer in standard, half-PPR (point per reception), and full PPR leagues. Someone sends you an offer? Simply pull out a calculator (on your phone, you don't need an actual calculator) and plug in the values for each player. Don't worry, superflex leagues are covered as well.

These value charts are based on my fantasy football rest of season rankings and projections.

Important note: If you're offered an uneven trade (I.e., a 2-for-1 or 3-for-1), include the values for the players you'd be moving to the bench or dropping within your calculation. For example: If someone offers you Joe Mixon, Quentin Johnston, and Darnell Mooney (combined value of 67) for Justin Jefferson (58), it might look like you're getting the better end of it. However, if you're bumping down, say, Rico Dowdle and Demarcus Robinson (combined value of 32) in the process, it's a net negative deal for you.

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The rankings are based on how players should be valued in a 12-team league. Players are sorted in order of their half-PPR values.

(NOTE: App users might need to switch to a browser if the charts aren't showing up.)

Quarterback trade value chart

Running back trade value chart

Wide receiver trade value chart

Tight end trade value chart