| What it does | Free, real-time 401(k) calculator showing contributions, employer match and compound growth
| Free personal finance calculators that show the real math behind the number
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
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| Pricing model | Free
| Free
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| Pricing | Not given
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| Key features | - Live, real-time calculations that update as you type
- Breaks down balance into contributions, employer match and investment growth
- No signup or account required
- All calculations run in the browser with no data stored
- Updated for 2026 IRS contribution limits
- 11 focused calculators for different 401(k) scenarios
- Visual chart showing balance growth over time
- Employer match calculator
- Roth vs traditional comparison tool
- Early withdrawal penalty calculator
| - Debt Snowball vs. Avalanche calculator
- Student Loan Repayment calculator
- Credit Card Payoff Calculator
- Compound Interest Calculator
- Mortgage Refinance Calculator
- Retirement Catch-Up Calculator
- 401(k) Early Withdrawal Calculator
- 50/30/20 Budget Calculator
- Emergency Fund Calculator
- Hand-verified formulas with plain-English explanations
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| What makes it different | - Fully transparent formulas shown for every calculation
- IRS-accurate calculations verified against official guidance
- No advertising or sponsored products
- Complete privacy with client-side-only calculations
- Worked examples showing calculations step-by-step
| - Shows the actual math behind each calculation instead of a black box
- Every formula is hand-verified before publishing
- No signup, email wall, or spreadsheet download required
- Official figures checked directly against government sources
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 8 ▲ +1 (up) since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 17 | 0 |
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| Citation Flow (Majestic) | 10 | 17 |
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| Referring domains (Majestic) | 19 | 1 |
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401k Calculator
TheCalcNerd