| What it does | Free calculators for sleep, mental wellbeing, recovery, fitness, nutrition and healthy living
| Free overtime pay calculator for all 50 states and DC with state-specific rules and federal FLSA standards
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| Pricing model | Free
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| Key features | - Sleep Cycle Calculator for planning bedtimes based on 90-minute cycles
- Bedtime Calculator to find sleep time based on wake-up time and duration
- Wake-Up Time Calculator based on bedtime and sleep cycles
- Sleep Debt Calculator to estimate missed sleep over a week
- Caffeine Half-Life Calculator to estimate caffeine remaining in body
- How Much Sleep Do I Need Calculator with age-based estimates
- 20 calculator hubs across Sleep, Mind, Body, Family and Lifestyle categories
- Transparent formulas showing the math behind each result
- Evidence-based references citing primary sources
- Editorial and clinical review for sensitive health tools
| - Dedicated calculation engines for California, Colorado, New York, Alaska, Nevada, and Oregon
- Daily overtime rules modeling (8-hour and 12-hour thresholds)
- Double-time (2.0x) pay calculation for extended shifts
- 7th consecutive day overtime tracking
- Itemized pay breakdown with legal citations
- Client-side privacy (no data sent to servers)
- Deterministic audit hashes for calculation verification
- Federal FLSA fallback for 45 jurisdictions
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| What makes it different | - Private calculations in browser with no account required or personal data selling
- Transparent formulas and methodology for every calculator
- Evidence-based content citing primary sources not rewrites
- Regularly updated formulas with versioning and review dates
| - Transparent, deterministic rule engine with no black-box estimations or AI-generated calculations
- Official government source verification with automated URL auditing
- Explicit disclosure of coverage gaps instead of misleading claims
- Handles daily overtime rules that standard 40-hour calculators miss
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 17 ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 0 | 0 |
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| Citation Flow (Majestic) | 10 | 13 |
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| Referring domains (Majestic) | 16 | 1 |
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WowSleepCalculator
OvertimePayRate