Finance & Money
401k Calculator
Calculate 401k growth and retirement savings
Formulas and edge cases are reviewed against authoritative references before publication. For methodology, editorial standards, or corrections, use the links below.
Frequently asked questions
What does the 401k Calculator do?
It helps you calculate 401k growth and retirement savings.
What inputs do I need?
Enter Annual salary, Your contribution, Employer match, Expected return, and Years of saving.
Are decimals supported?
Yes, you can use decimal values where appropriate.
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About this tool
Inputs
- Annual salary
- Your contribution
- Employer match
- Expected return
- Years of saving
Results
- Future balance
- Employee contribution
- Employer match
- Total annual savings
You do not need a spreadsheet to calculate 401k growth and retirement savings. This 401k Calculator gives you the answer in seconds. Provide annual salary, your contribution, employer match, expected return and years of saving to get started. The tool derives future balance, employee contribution, employer match and total annual savings from your entries. People frequently need to calculate 401k growth and retirement savings but lack a quick way to do it — this tool fills that gap.
Remember that past returns do not guarantee future performance. Whether saving for retirement or evaluating a loan, running the numbers removes guesswork. Annuity formulas account for regular contributions alongside compounding. Projecting financial scenarios helps you set realistic goals and avoid costly surprises. Try adjusting one input at a time to see how it affects the outcome — this is the fastest way to build intuition about the relationship between the variables.