| What it does | Free concrete cost calculator priced for your metro area
| Free attendance calculator for students to track how many classes they can safely miss
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| Stage | Not given
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| Founded | Not given
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| Based in | US
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| Pricing model | Free
| Free
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| Pricing | Not given
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| Key features | - 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
| - Calculate how many remaining classes can be missed while staying at target
- Determine how many consecutive sessions must be attended to recover if below threshold
- Track attendance for multiple subjects separately
- Browser-based with no sign-up or account required
- All calculations performed locally without sending data to servers
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| What makes it different | - 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
| - No account or sign-up needed – instant access with no data collection
- All calculations happen in your browser – attendance data never leaves your device
- Supports multiple institutional requirements with 75%, 80%, 85%, and 90% target options
- Tracks multiple subjects simultaneously to prevent any single module from sliding below threshold
- Built and maintained by a single developer focused on honest, accurate answers
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 5 ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 9 | 1 |
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| Citation Flow (Majestic) | 30 | 19 |
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| Referring domains (Majestic) | 22 | 3 |
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ConcreteCostCalc
CalcAttendance