| What it does | Free attendance calculator for students to track how many classes they can safely miss
| Free freight calculators for shippers, brokers, and small businesses
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| Stage | Not given
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| Pricing model | Free
| Freemium
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| Pricing | Not given
| Free tier: all calculators unlimited, no account required. Pro: $99/year (about $8.25/month billed annually, save 57%) or monthly pricing available; includes watermark-free PDF exports with custom branding, saved shipments and history, batch/CSV calculations, priority support, 14-day money-back guar
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| Key features | - 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
| - Freight Class Calculator with NMFC density scale (Docket 2025-1)
- CBM and volumetric weight calculations for sea and air freight
- Dimensional and chargeable weight by carrier divisor
- Pallet and container loading calculators (20ft, 40ft, 40HQ)
- Instant calculations with no sign-up or account required
- Freight class chart and commodity reference guides
- Bill of Lading form with PDF download
- Pro tier with watermark-free PDFs and saved shipments
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| What makes it different | - 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
| - All numbers from published freight standards, not guesses: NMFC density scale, carrier tariffs, real pallet and container specs
- Every calculation shows its work on the page so users can verify the math
- Mobile-first interface built for phones on the dock, not desks
- No friction: instant results without sign-up, pop-ups, or paywalls on core math
- Ten specialized calculators covering every freight calculation need in one place
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | Not checked yet ● no change since last check | 15 ● no change since last check |
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| Trust Flow (Majestic) | 1 | 7 |
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| Citation Flow (Majestic) | 19 | 20 |
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| Referring domains (Majestic) | 3 | 25 |
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CalcAttendance
Freight Calculator Hub