| What it does | Free online calculators for everyday math, percentages, dates, conversions, and more
| Free source-checked paycheck and tax calculators with every rate linked to official sources
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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 | Not given
| The calculators are free to use and do not require an account.
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| Key features | - Percentage calculator for discounts, tips, and percent change
- Date and time calculators for age, date differences, and time zones
- Math calculators for fractions and statistics
- Financial calculators for interest and taxes
- Unit converters for length, weight, and temperature
- Education tools for GPA and grade calculations
- Instant calculations with no server responses
- Mobile friendly responsive design
- Educational explanations and formulas included
| - Paycheck and income tax calculators for US and 12 other countries
- Every rate linked to official tax agencies
- Calculations tested against official worked examples
- Source documentation with retrieval dates for every figure
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| What makes it different | - All calculations run in your browser with no data storage or transmission
- Instant client-side JavaScript calculations with no server delay
- Privacy-first approach where numbers never leave your device
- Fully responsive design works on all device types
- Educational content with formulas and examples for each calculator
| - Every rate is sourced from official tax agencies with links to original documents
- All figures are dated and checked for accuracy against official methods
- Transparent about gaps where data is not yet verified
- Covers 15 countries with a unified approach to transparency
- Plain English explanations alongside all calculators
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 3 ▼ −1 (down) since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 4 | 0 |
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| Citation Flow (Majestic) | 1 | 0 |
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| Referring domains (Majestic) | 2 | 0 |
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