| What it does | US paycheck calculator for all 50 states and DC with exact take-home pay calculations
| Free Karvonen formula heart rate zone calculator
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| Stage | Not given
| Established
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| Founded | Not given
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| Based in | US
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| Pricing model | Free
| Free
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| Pricing | Not given
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| Key features | - Interactive calculator for salary and state with instant take-home results
- Effective and marginal tax rate calculations
- Live state-by-state comparison map
- 401(k) and pre-tax deduction modeling
- 51 state-specific calculators with local tax rules
- Property tax calculators for all counties
- Hourly to annual income conversions
- Self-employment and gig worker tax calculations
| - Five personalized training zones based on heart rate reserve
- Accounts for resting heart rate and cardiovascular fitness
- Custom maximum heart rate input from multiple formulas
- No signup required, runs entirely in browser
- Weekly resting heart rate logging and progress tracking
- Zone-specific training guidance for different goals
- Shareable and printable zone results
- Embeddable calculator widget for websites
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| What makes it different | - Built directly on official 2026 IRS and state DOR data updated quarterly
- Accurate to within $50/year for most income levels
- Privacy-first: all calculations run in-browser, no data sent to servers
- Open datasets available for researchers and journalists
- Reproducible calculation engine verified against official sources
| - More accurate than age-only formulas, accounting for individual cardiovascular fitness
- Zones adapt as your fitness improves and resting heart rate drops
- Based on 1957 Karvonen research used by coaches and sports scientists
- Independent, no data collection or external servers
- No ads inside the calculator, free to use with optional embedding
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 7 ● no change since last check | 11 ● no change since last check |
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| Trust Flow (Majestic) | 8 | 19 |
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| Citation Flow (Majestic) | 19 | 25 |
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| Referring domains (Majestic) | 26 | 40 |
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StateTakeHome
CalculateMyHeartRate