| What it does | Free calculators for sleep, mental wellbeing, recovery, fitness, nutrition and healthy living
| Free UK money calculators for tax, mortgages, loans, savings and everyday maths
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
| GB
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| Pricing model | Free
| Free
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| Pricing | Not given
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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
| - Take-home pay calculator for income tax and National Insurance
- Salary to hourly wage converter
- Student loan repayment calculator for Plans 1, 2, 4, 5 and postgraduate
- Mortgage repayment calculator
- Stamp Duty Land Tax calculator for England and Northern Ireland
- Compound interest and savings goal projections
- Debt payoff and credit card repayment planner
- VAT calculator
- Monthly budget builder
- Currency converter
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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
| - No signup required to use any calculator
- All calculators use official UK tax rates with documented update dates
- Consistent structure with worked examples and FAQ for every tool
- Designed for search accuracy and transparency
- Clear disclaimers and not personalised financial advice
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 14 ▼ −3 (down) since last check | 4 ▲ +2 (up) since last check |
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| Trust Flow (Majestic) | 0 | 0 |
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| Citation Flow (Majestic) | 10 | 0 |
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| Referring domains (Majestic) | 16 | 0 |
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WowSleepCalculator
Handy Money Tools