| What it does | Free, real-time 401(k) calculator showing contributions, employer match and compound growth
| Find the score you need on your final exam to reach your target course grade
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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
| - Apply formula: Required = (Goal - Current × (1 - Weight)) ÷ Weight
- Weighted grade calculator for multiple categories
- GPA calculator from letter grades and credits
- Grade converter between percentage and letter grade
- Test grade calculator from correct answers
- Cumulative GPA calculator across multiple terms
- All calculations run in browser without sign-up
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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
| - Instantly shows if your target grade is reachable from the final exam alone
- Works for any grading setup with fixed final exam weight
- Completely free with no sign-up required
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| Community votes | 0 | 0 |
| DR (Domain Rating by Ahrefs) | 7 ● no change since last check | 2 ● no change since last check |
| Trust Flow (Majestic) | 17 | 3 |
| Citation Flow (Majestic) | 10 | 24 |
| Referring domains (Majestic) | 19 | 33 |