| What it does | Fast, practical calculators, converters and online utilities for work, projects and everyday questions
| Predict school closures and delays with live weather for any US or Canadian location
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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 | - 240+ free tools across 15 categories
- No account or sign-up required
- Browser-based calculations without uploading files
- Works on desktop, tablet and mobile devices
- Fast and easy interface
- Available 24/7
- Adjustable assumptions for some tools
- Business, construction, finance and math tools
| - Live weather data integration from OpenWeatherMap and Open-Meteo
- Multi-factor weather analysis including temperature, snowfall, wind, visibility, and ice risk
- Probability scoring with detailed factor breakdown
- Support for US ZIP codes and Canadian postal codes
- GPS location detection
- 50+ specialized winter calculators
- Mobile-responsive progressive web app design
- Local browser storage for recent searches with no account required
- Hourly forecast view
- Saved locations feature
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| What makes it different | - Simple interface designed to get from question to answer with minimal friction
- All tools free without registration or account creation
- Calculations performed directly in browser for improved speed
- Wide variety of specialized tool categories for different needs
| - Explains the factors behind each prediction rather than showing an unexplained percentage
- Independent platform not affiliated with school districts or government agencies
- Continuous model refinement based on outcome review against reported closures
- Privacy-first architecture with no location data transmission or sale
- Accessible design with keyboard navigation and WCAG compliance
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 2 ● no change since last check | 10 ● no change since last check |
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| Trust Flow (Majestic) | 12 | 2 |
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| Citation Flow (Majestic) | 17 | 11 |
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| Referring domains (Majestic) | 4 | 29 |
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ToolGrid247
Snow Day Calculator