| What it does | Free, real-time converter for tons to kilograms with exact SI constants
| Time duration calculator for hours, minutes, and dates
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
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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
| - Calculate elapsed time between two times or dates
- Handle shifts that cross midnight
- Support for multiple time formats: h:mm:ss, decimal hours, and total minutes
- Account for daylight saving time with timezone selection
- Add up to 20 time spans together
- Run calculations in browser with no data storage
- Pre-calculated common work shifts for reference
- Calculate hours worked with unpaid break deductions
- Show results in multiple formats for different use cases
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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
| - All calculations verified against 100+ automated tests before each release
- Handles edge cases like midnight crossings, month-end dates, and daylight saving
- Built by a single developer who personally checks every result
- No server storage or tracking of user inputs
- Comprehensive methodology page explains all calculation rules
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| Community votes | 0 | 0 |
| DR (Domain Rating by Ahrefs) | 6 ● no change since last check | Not checked yet ● no change since last check |
| Trust Flow (Majestic) | 17 | 1 |
| Citation Flow (Majestic) | 7 | 18 |
| Referring domains (Majestic) | 25 | 2 |