401k Calculator
Project 401(k) growth including employer match and annual returns.
Inputs
Results & Visuals
How to Use This Tool
- Enter salary, contribution %, employer match, and annual return.
- Set current age and retirement age.
- Calculate projected 401(k) balance and contributions split.
Common Use Cases
- US retirement planning
- Employer match optimization
- Contribution strategy comparison
Important Notes
- IRS contribution limits are simplified in this tool.
- Actual plan rules can vary by employer.
- Rule: yearly growth = previous balance*(1+r) + annual contribution + match.
- All calculations run fully in your browser. Inputs are not sent to our server.
- Safe and free to use: no login, no signup, no paywall.
- Country and currency presets are for planning support and may require local verification.
- If you find a bug, please report it in comments with sample input and expected output.
Comments & Discussion
Facing issues? Have questions? Post them here! We're happy to help!