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    Everyday Tools

    UK Everyday Calculators: Free Lifestyle and Utility Tools

    Practical calculators for everyday life in the UK, from redundancy pay to solar ROI.

    8

    Free tools

    2026/27

    Tax year

    HMRC

    Verified rates

    Not every financial calculation is about tax or mortgages. This collection covers the practical tools UK residents need day-to-day: working out statutory redundancy pay if you're facing redundancy, checking your annual leave entitlement, calculating whether solar panels are worth the investment, estimating energy bills under current unit rates, or checking whether you might have a car finance mis-selling claim. We've also included a pension projection calculator and child maintenance estimator. All tools use the most current official figures - redundancy pay caps from April 2026, holiday entitlement rules under current legislation, and NHS BMI guidelines.

    Frequently Asked Questions

    Common questions about everyday tools.

    Statutory redundancy pay is calculated using a formula based on your age and length of service: 0.5 week's pay per year worked under age 22; 1 week's pay per year worked aged 22 to 40; 1.5 weeks' pay per year worked aged 41 and over. Weekly pay is capped at £751 for 2026/27 and the maximum statutory payout is £22,530 (30 weeks × £751). You must have worked for your employer for at least 2 years to qualify.

    In the UK, workers are entitled to a minimum of 5.6 weeks' annual leave per year (28 days for someone working 5 days per week). This includes 8 bank holidays, which employers may or may not require you to take as part of your allocation. Part-time workers receive the same entitlement on a pro-rata basis - someone working 3 days per week receives 3 × 5.6 = 16.8 days per year.

    According to the NHS, a healthy BMI for most adults is between 18.5 and 24.9. Underweight is below 18.5; overweight is 25 to 29.9; obese is 30 and above. However, BMI is a screening tool, not a diagnostic one - it doesn't distinguish between muscle and fat mass, and different thresholds apply for people of South Asian, Chinese, and other ethnic backgrounds.

    The typical UK home solar installation (4kW system) costs £7,000 to £9,000 and generates around 3,400 kWh per year. At current energy prices (around 24p/kWh), that's roughly £816/year in savings plus any Smart Export Guarantee (SEG) payments for exported electricity. The payback period is typically 7 to 10 years, with the panels lasting 25+ years.

    The Child Maintenance Service (CMS) calculates payments based on the paying parent's gross weekly income: 12% for 1 child; 16% for 2 children; 19% for 3 or more children. These percentages are reduced if the paying parent has overnight stays with the children. Payments can be arranged directly between parents or collected through the CMS (which charges a fee).

    All calculations use official HMRC rates for 2026/27, updated April 2026. Results are estimates for guidance only - not financial advice. Our methodology · Disclaimer

    HMRC Verified Rates
    Updated April 2026
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