| What it does | Free, real-time converter for tons to kilograms with exact SI constants
| Date, deadline and time calculators with visible assumptions and sources
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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 | 100% free, no signup required
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| Key features | - Real-time conversion as you type
- Supports three ton types: metric, US short, and UK long
- Displays exact conversion constant with every result
- No signup, no account required
- Bidirectional conversion toggle between tons and kilograms
| - 184 calculators across 53 categories
- Shows counting rules and assumptions with each result
- Local-first processing with no data sent to servers
- Holiday and weekend calendar selection
- Business day counting
- Date arithmetic (add or subtract days, weeks, months, years)
- Sleep cycle planner with NIH-based 80-100 minute cycles
- Time zone conversion with DST handling
- Save results as images or add to calendar
- Schengen visa 90/180 day rolling window auditing
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| What makes it different | - Uses exact SI conversion constants rather than rounded approximations
- All calculations run client-side with no server calls or data storage
- Defaults to metric ton, the international standard
- Completely transparent methodology
| - Shows the source and counting rule beside every answer
- No sign-up or account required to use any calculator
- All inputs stay in your browser for privacy
- Comprehensive coverage across 53 life and work categories
- Higher-risk calculators include prompts to verify with professionals
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 6 ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 17 | 0 |
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| Citation Flow (Majestic) | 7 | 0 |
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| Referring domains (Majestic) | 25 | 0 |
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Ton to Kg
CalcSpan