Over 300 free UK calculators organised by category. Updated with official 2025/26 HMRC rates, DWP benefit thresholds, and government regulations for accurate results.
Income tax, VAT, stamp duty, capital gains, corporation tax, and dividend calculations. Updated for 2025/26 tax year with HMRC rates.
View Tax CalculatorsSavings, loans, compound interest, ISA, pension projections, and personal budgeting tools for UK financial planning.
View Finance CalculatorsMortgage payments, stamp duty (SDLT), rental yield, buy-to-let analysis, and home affordability for UK property.
View Property CalculatorsBMI, calories, body fat, pregnancy due date, alcohol units, and fitness calculations using NHS guidelines.
View Health CalculatorsUCAS tariff points, GCSE grades, student loan repayments, GPA conversion, and degree classification tools.
View Education CalculatorsVAT returns, profit margins, break-even analysis, business rates, and employer NI contributions for UK businesses.
View Business CalculatorsAge, date, time, working days, unit converters, temperature, and everyday practical tools for UK residents.
View Lifestyle CalculatorsFuel costs, car tax (VED), MOT, electric vehicle savings, currency conversion, and journey planning tools.
View Travel CalculatorsPercentages, fractions, scientific calculator, equation solver, probability, and statistics for GCSE/A-Level.
View Maths CalculatorsUniversal Credit, State Pension, Child Benefit, Council Tax, IR35, National Minimum Wage, and other UK government benefit calculators.
View UK CalculatorsUK Calculator provides the most comprehensive collection of free online calculators designed specifically for United Kingdom residents. Whether you're calculating your take-home pay, planning a mortgage, working out student loan repayments, or checking your Universal Credit entitlement, our tools use official UK rates and regulations to give you accurate results you can rely on.
Since launching, we've helped millions of UK residents make informed financial decisions, plan major purchases, track health goals, and navigate the complexity of British tax and benefit systems. Every calculator is built from the ground up with UK-specific requirements, ensuring you get results that actually apply to your situation rather than generic international estimates.
The United Kingdom has unique tax systems, benefit structures, and measurement conventions that generic international calculators simply don't handle correctly. From the complexity of Income Tax bands and National Insurance thresholds to Scottish tax rate differences and the nuances of Stamp Duty Land Tax, UK residents need calculators built with British regulations in mind.
Consider income tax alone: the UK has a Personal Allowance that tapers away above £100,000, separate Scottish income tax rates with six bands instead of three, a Marriage Allowance transfer option, and National Insurance contributions that operate on completely different thresholds. A generic tax calculator can't account for these UK-specific rules, leaving you with inaccurate estimates that could affect your financial planning.
Our calculators are organised into ten distinct categories, each containing specialised tools for different aspects of life in the UK. Whether you're a first-time buyer working out stamp duty, a student calculating loan repayments, or a business owner managing VAT returns, there's a calculator designed for your needs.
| Category | Calculators | Most Popular Tool | Key Feature |
|---|---|---|---|
| Tax Calculators | 12+ | UK Salary Calculator | 2025/26 HMRC rates |
| Finance Calculators | 10+ | Mortgage Calculator | UK lender criteria |
| Property Calculators | 8+ | SDLT Calculator | Regional variations |
| Health Calculators | 10+ | BMI Calculator | NHS guidelines |
| Education Calculators | 10+ | Student Loan Calculator | Plan 1/2/4/5 support |
| Business Calculators | 8+ | VAT Calculator | MTD compatible |
| Lifestyle Calculators | 12+ | Age Calculator | UK date formats |
| Travel Calculators | 10+ | Car Tax Calculator | VED rates 2025/26 |
| Maths Calculators | 8+ | Percentage Calculator | GCSE/A-Level aligned |
| UK Specific | 14+ | Universal Credit Calculator | DWP rates 2025/26 |
All tax-related calculators are updated following each UK Budget announcement. For the 2025/26 tax year (6 April 2025 to 5 April 2026), our calculators reflect the current rates and thresholds that affect your finances:
All calculations are performed locally in your browser using JavaScript. Your financial data never leaves your device and is never stored on our servers. There's no registration required, no accounts to create, and no personal information collected. Simply enter your figures, get your results, and close the page—your data stays with you.
We don't use tracking cookies for your calculation inputs, we don't sell data to third parties, and we don't require email addresses or personal details to use any calculator. This privacy-first approach means you can confidently enter sensitive financial information knowing it remains completely private and secure on your own device.
While our calculators are designed to provide accurate estimates, the quality of your results depends on the information you provide. Here are some tips to ensure you get the most useful calculations:
All rates, thresholds, and calculations on UK Calculator are sourced from official government publications and updated when changes are announced. Our primary sources include:
When official sources announce changes—such as Budget rate updates or mid-year adjustments—we typically update our calculators within 48 hours to ensure you always have access to current information. Each calculator page displays the tax year or date the rates were last verified.
Yes, all 300+ calculators on UK Calculator are completely free to use with no registration required. We don't limit usage, require sign-ups, or charge for any calculator features. All calculations are performed locally in your browser for privacy. There are no premium tiers, hidden costs, or ads that block functionality.
We update all tax calculators annually following the UK Budget announcements, typically in March/April for the new tax year starting 6 April. Our calculators currently use 2025/26 tax year rates including Income Tax bands (£12,570 Personal Allowance), National Insurance thresholds, SDLT rates, and capital gains allowances. Mid-year changes announced by HMRC are implemented within 48 hours.
Our most popular categories are Tax Calculators (especially the UK Salary Calculator and VAT Calculator), Finance Calculators (Mortgage Calculator and Loan Calculator), and Health Calculators (BMI Calculator and Calorie Calculator). UK-specific calculators like Universal Credit and Child Benefit are also heavily used, particularly around benefit assessment periods and the start of the new tax year.
Yes, all UK Calculator tools are fully responsive and work perfectly on smartphones, tablets, and desktop computers. The interface automatically adapts to your screen size with touch-friendly inputs and appropriately sized buttons. Calculations are instant with no page reloads required, making them ideal for quick calculations on the go.
Our calculators use official HMRC, DWP, and GOV.UK rates and are designed to provide accurate estimates. However, they are for guidance only and should not replace professional advice. For official tax returns, benefit claims, mortgage applications, or significant financial decisions, always verify results with HMRC, your accountant, financial adviser, or other qualified professionals.
UK Calculator is specifically designed for British residents with UK-specific rates, thresholds, and regulations built into every tool. Unlike generic international calculators, we incorporate Income Tax bands including Scottish rates, all National Insurance classes, regional SDLT/LTT/LBTT variations, ISA and pension allowances, student loan Plan types, and current DWP benefit rates. All data comes directly from official government sources.
Absolutely. All calculations are performed locally in your browser using JavaScript. Your financial data never leaves your device and is never transmitted to or stored on our servers. There's no registration required, no cookies tracking your calculation inputs, and no personal information collected. When you close the page, your data is gone—your privacy is completely protected.
Yes, we welcome feedback and suggestions. If you notice an outdated rate, calculation error, or would like to suggest a new calculator that would help UK residents, please use our Contact page. We review all feedback and prioritise updates based on user demand and official rate changes. Many of our most popular calculators were developed based on user requests.