2024 401k Contribution Limit Calculator. Workers who contribute to a 401(k), 403(b), most 457 plans, and the federal. In 2024, the contribution limit for 401k plans, including 403 (b) plans, and most 457 plans, will increase to $23,000.

This is in addition to the standard employee contribution limit, meaning that if you are 50 or older, you could. Use our calculator to estimate your future balance.