Free online UK calculators

Free UK Calculators – Fast, Accurate & Easy-to-Use Tools

Find calculators for tax, salary, mortgage, VAT, BMI, savings, percentages, and more. Each tool is designed to help you get a quick answer, understand the result, and move on with confidence.

Explore All Categories Browse Popular Tools

UK calculator categories

live calculator pages

0/7

instant results available

free to use

Start with the category that matches your task

Browse calculators by topic to find the right tool faster, whether you are checking take-home pay, comparing mortgage costs, working out VAT, tracking BMI, or handling everyday number problems.

Browse the full UK calculator library

Explore every calculator category in one place, grouped to make it easier to jump into tax, salary, finance, property, health, maths, travel, and specialist UK tools.

Finance & Tax

Bills, deductions, tax bands, and business checks

Work & Income

Salary, pensions, welfare, and take-home planning

Property & Housing

Mortgages, deposits, rent, and housing decisions

Loans, Savings & Investing

Repayments, yields, savings growth, and returns

Health & Lifestyle

Health markers, routines, and day-to-day planning

Maths & Construction

Percentages, dimensions, materials, and quick checks

Science & Environment

Conversions, formulas, energy, and technical estimates

Travel & Immigration

Trip costs, mileage, visas, and timeline checks

Popular Calculators

Browse the most important calculator groups first. Each tab clusters related UK tools together so you can move from broad topics into the exact calculator page you need faster.

Finance & Tax

Browse the most relevant UK calculator hubs in this topic.

6 category pages

Capital Gains Tax

Corporation Tax

Income Tax

Inheritance Tax

PAYE and National Insurance

Finance & Tax

VAT

Why Use Our UK Calculators?

Built around common UK tax, pay, finance, health, and property tasks
Clear inputs and instant results without sign-up
Useful for quick checks, planning, and side-by-side comparisons
Easy to use on mobile and desktop
Covers everyday calculations as well as specialist UK topics

Whether you're planning your finances or checking quick numbers, everything is designed for speed and accuracy.

How Our Calculators Work

Enter your numbers, review the result, and adjust the inputs if you want to compare different outcomes. Each page is designed to make the calculation quick to use and the result easier to understand.

Enter your values
Click calculate
Get instant results with clear explanations

No complex setup, no confusion—just accurate answers.

UK Calculators for Everyday Use

Our tools are designed for real-life use cases, including:

Checking take-home pay after tax and deductions
Estimating mortgage, loan, and savings figures
Working out VAT, percentages, and key tax amounts
Tracking BMI and other health-related numbers
Comparing scenarios before making a financial decision
Converting units and measurements quickly

Everything is structured to save time and reduce manual calculations.