Know the cost.
Plan your next step.
Free UK calculators for pay, tax and everyday costs. Find a tool, run the numbers and check the assumptions.
Popular calculators
Number plates
Check the format and sale proceeds from an offer
Water bills
Monthly and annual costs using your own tariffs
Royal Mail
Compare postage prices and parcel sizes
Pay rise
See your gross and after-tax increase
Teacher pay
England pay scales and take-home estimates
Fuel costs
Journey cost, return trips and passenger shares
Browse calculators by topic
Open a category, or use search above to find a specific tool.
Planning a bigger change?
Buying a house
Combine taxes, fees and moving costs.
Running a car
Compare fuel, finance and ownership costs.
Having a baby
Plan parental pay and a family budget.
Planning retirement
Explore income and spending assumptions.
Looking for support?
Explore reliefs and benefits that may apply to your circumstances, with links to official claim guidance.
How to use these estimates
Calculators explain their scope, assumptions and sources. Tax years, price periods and recorded content review dates help you check which figures apply. Commercial costs and forecasts can differ from your actual quote or entitlement.
Use results to compare scenarios, then check the official guidance or provider before making a decision. A review date records a content check; it does not guarantee that every situation is covered.
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