United States Money Calculators
Retirement, 401k and IRA tools built on current IRS limits. Free, private and built on official figures.
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All US calculators
401k calculator
See what your 401k could be worth
401k planner
How much do you need to retire?
401k withdrawal calculator
How long will your money last?
401k early withdrawal penalty
What you would keep after tax
401k loan calculator
Payments and the cost of borrowing
Roth conversion calculator
Should you move money to a Roth?
401k employer match
Are you getting all of it?
401k contribution limit
How much can you put in?
RMD calculator
Required withdrawals at 73 and over
Solo 401k calculator
For the self-employed
Guides
401k Contribution Limits for 2026, Explained3 min read
401k Early Withdrawal Rules: Penalties and Exceptions4 min read
401k Loan vs Withdrawal: Which Costs Less?3 min read
How a 401k Employer Match Works3 min read
How Much Should You Have in Your 401k by Age?3 min read
Required Minimum Distributions (RMDs) Explained3 min read