| What it does | US paycheck calculator for all 50 states and DC with exact take-home pay calculations
| Free one rep max calculator with seven formulas and percentage charts
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| Stage | Not given
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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
| - Seven 1RM formulas (Epley, Brzycki, Lombardi, Lander, Mayhew, O'Conner, Wathen)
- Average of all formulas as recommended result
- Percentage chart from 100% to 50% of 1RM
- Rep-max table for 1RM through 12RM
- Support for kilograms and pounds
- Exercise-specific formula defaults
- RPE adjustment for reps in reserve
- Multiple exercise categories (chest, back, legs, shoulders, arms, Olympic)
- Browser-based history with no account
- Warm-up sets calculator and rep-max table
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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
| - Uses seven published formulas instead of one, showing average and range for transparency
- No account, sign-up, or data storage required
- Covers dozens of exercises with exercise-specific guidance and lift variations
- Warns about formula accuracy limits and when estimates are unreliable
- Includes linked tools for related calculations (DOTS, Wilks, training max, FFMI, VO2)
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 7 ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 8 | 0 |
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| Citation Flow (Majestic) | 19 | 0 |
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| Referring domains (Majestic) | 26 | 0 |
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StateTakeHome
OneRepMax