| What it does | Fast, transparent material calculators for real projects
| Free online reaction time test that measures your reflex speed in milliseconds
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| Stage | Not given
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| Founded | Not given
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| Based in | US
| US
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| Pricing model | Free
| Free
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| Pricing | Not given
| Not given
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| Key features | - Editable assumptions based on actual product labels
- Visible net quantity, waste, and package rounding
- Field guides for project measurement and material planning
- Support for US and metric measurements
| - Reaction time measured in milliseconds
- Sessions of 5, 10 or 20 rounds
- Best and average score tracking
- Percentile comparison with online-test benchmarks
- Shareable score card and friend challenge link
- Light and dark mode
- Works on mobile, tablet and desktop
- No registration or download required
- Random delay prevents anticipation
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| What makes it different | - Shows net quantity, waste allowance, and packaging rounding visibly together for easy comparison with product labels
- No account, sales call, or hidden formula required
- Fifty practical free calculators covering six major project categories
- Editable product-specific assumptions rather than fixed formulas
- Separate calculators for similar materials with different inputs and purchase results
| - No sign-up, download, or account required
- Does not collect or store personal data
- Sub-millisecond timer precision using browser performance API
- Benchmarks against pro gamers, trained athletes, and average adults
- Fast and clean interface without ads
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 1 ▲ +1 (up) since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 3 | 0 |
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| Citation Flow (Majestic) | 25 | 12 |
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| Referring domains (Majestic) | 12 | 3 |
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GQ Calc
VoltReflex