Free UK calculators and plain-English guidance for everyday money, work, property and life admin questions.
Our Calculators
Estimate UK property tax costs when buying a home or investment property.
Estimate take-home pay after UK tax, National Insurance and deductions.
Work out annual leave entitlement for full-time, part-time and irregular hours.
Estimate self-employed tax, National Insurance and money to set aside.
Estimate statutory maternity pay and plan ahead for maternity leave income.
Explore pension pot projections and retirement planning scenarios.
Why We Created Simply Useful Sites
Simply Useful Sites brings together free UK calculators for everyday money, work, tax, property and life admin questions. Each tool is designed to give a quick, plain-English starting point without jargon, sign-ups or unnecessary complication.
You can use the calculators to check take-home pay, estimate property tax, understand maternity pay, review holiday entitlement, explore self-employed tax or look at pension pot scenarios. The tools are built for general guidance only and are regularly reviewed, but they should not replace professional financial, tax, legal or employment advice.