| What it does | Free, real-time 401(k) calculator showing contributions, employer match and compound growth
| Free concrete cost calculator priced for your metro area
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
| US
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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
| - Metro-area specific wage pricing from Bureau of Labor Statistics
- Multiple project types including pads, driveways, patios, block walls and rebar
- Material pricing from 2022 Economic Census updated with price index
- Source and date displayed for every number
- Covers 393 U.S. metro areas with separate wage data
- Price range reflects natural variation in contractor quotes
- No contractor payments for ranking or placement
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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
| - All estimates built from public government data with transparent methodology
- Independent with no paid contractor rankings or sponsored content
- Calculator runs entirely from code with automated test suite
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 7 ● no change since last check | 5 ● no change since last check |
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| Trust Flow (Majestic) | 17 | 9 |
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| Citation Flow (Majestic) | 10 | 30 |
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| Referring domains (Majestic) | 19 | 22 |
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401k Calculator
ConcreteCostCalc