| What it does | Free online calculators with step-by-step workings and cited sources, embeddable on any website
| Browser-based grade calculator for weighted course grades, final planning, and GPA estimates
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| Stage | Startup
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| Founded | 2026
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| Based in | GB
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| Pricing model | Freemium
| Free
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| Pricing | Free plan: all calculators with ads, 5 saved calculations, 1 private link. Personal: $29 USD/year or $5/month with unlimited saved calculations, no ads, PDF and CSV export. Advisor: $149 USD/year or $19/month with client-facing branding, scenarios grouped by client, one PDF per client, and priority
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| Key features | - 1,336 calculators across 23 categories
- Step-by-step calculation workings shown live
- Cited sources on every calculator page
- Save and compare scenarios side by side
- Embed calculators on your website with three lines of code
- Update shared figures once across all embeds
- Export results as PDF or CSV
- Reusable assumption profiles
- Private read-only links with expiration
- Client management and reporting features
| - Calculate weighted course grades from multiple assignments and assessments
- Support for multiple grade formats including percentages, letter grades, and points
- Final exam score planning to reach a target grade
- Customizable letter grade scales for different schools and instructors
- Display both raw and weighted grade averages
- Support for semester, quarter, and high school grades
- GPA point calculations with letter-grade conversion
- No account required to use calculators
- Browser-based access with save functionality
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| What makes it different | - Visible calculation working for every result, so you can inspect the math rather than trust blindly
- Every calculator declares its method and sources in code with checked examples
- Free embedding with your own branding and no tracking of readers
- Similar calculators are consolidated to one preferred page to avoid duplicate search results
| - Handles partial course weights that do not add up to 100 percent
- Distinguishes between raw averages and weighted averages to show individual assignment impact
- Automatically converts between percentages, points, and letter grades using customizable scales
- Estimates the exact final exam score needed to achieve a target grade
- Works without requiring account creation or login
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 23 ▼ −1 (down) since last check | 8 ● no change since last check |
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| Trust Flow (Majestic) | 24 | 8 |
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| Citation Flow (Majestic) | 34 | 25 |
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| Referring domains (Majestic) | 88 | 16 |
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CalculatorFox
GradeCal