About the 401(k) Calculator

A 401(k) is the most common employer-sponsored retirement savings plan in the US. Contributions are pre-tax (or post-tax for Roth 401(k)) and grow tax-deferred. Most employers match a percentage of your contribution up to a cap, often considered "free money."

2024 contribution limit: $23,000 (under 50) / $30,500 (50+).