Cost of Living Calculator United Kingdom
This cost of living calculator adds up monthly rent, utilities, food and transport, and shows the annual total and the share of your take-home pay it takes.

What it does
The Cost of Living Calculator totals your essential monthly outgoings — rent or mortgage, utilities, food, transport and other basics — projects the annual figure, and shows what share of your take-home pay those costs consume.
Data sources & parameters
This calculator uses standard financial formulas and runs entirely in your browser. It needs no external rate data — your result is computed only from the values you enter above.
We always strive to use the latest data for every variable so our results and reports are as accurate as possible. Even so, errors are possible — you should not rely on this tool or its report alone, and we accept no liability for any decision made based on it.
The formula
Monthly total = rent/mortgage + utilities + food + transport + other; annual total = monthly total × 12; share = monthly total ÷ take-home pay × 100
How it works
It adds up the five spending categories you enter to give a monthly total, multiplies that by 12 for the yearly figure, and divides the monthly total by your take-home pay to show the percentage of your income that essentials swallow.
Where it is used
- Seeing how much of your pay goes on essentials
- Building a monthly household budget
- Comparing outgoings before or after a move
Worked example
Essential outgoings of £1,000.00 on housing plus utilities, food, transport and other basics add up to … a month — … a year, or … of take-home pay.
Most people carry only a rough guess of what it costs them to live each month. Enter what you spend on housing, utilities, food, transport and other essentials, and this calculator returns your total monthly outgoings, the annual equivalent and the share of your take-home pay they use. Every figure is one you supply, so the result reflects your own circumstances rather than a national average.
What the calculator adds up
The tool splits essential spending into five categories. Rent or mortgage is usually the largest. Utilities covers gas and electricity, water, council tax and broadband. Food and groceries has its own field, and transport covers fuel, car insurance, servicing or public transport passes. The last field is for anything else essential, such as other insurance premiums, childcare or phone contracts. The calculator adds these up for your monthly cost of living and multiplies by twelve for the annual figure.
Turning the total into a share of your pay
The calculator also shows your outgoings as a percentage of monthly take-home pay, which tells you whether your spending is comfortably affordable or stretched. If essentials take 86% of what you earn, only 14% is left for saving, debt repayment and anything discretionary, which is a warning sign. Enter your take-home pay in the advanced options to see this figure.
Making your numbers accurate
Take the last three months of bank and card statements and average each category, rather than using one month that an unusual bill could distort. Divide annual costs by twelve, and enter council tax the way you pay it, over ten months or twelve. Use net take-home pay for the income field, not gross salary.
A worked example
A household pays £1,000 a month in rent, £250 on utilities, £400 on food, £200 on transport and £300 on other essentials. That is £2,150 a month, or £25,800 a year. Against take-home pay of £2,500 a month, essentials take 86% of income, leaving £350 a month for saving and everything else. Cutting £150 from the total would raise that to £500, more than 40% extra free cash.
Using the result to budget
Once you can see where the money goes, you can work on each category. Housing is hard to change quickly, but utilities often respond to a tariff switch, food to meal planning and the other category to cancelling forgotten subscriptions. Run the calculator again after each change, and revisit it every few months so your budget follows what you actually spend.
Assumptions and limitations
This is a planning estimate. It adds up the monthly figures you enter, multiplies the total by twelve and compares it with the take-home pay you provide; it applies no tax rates, benchmarks or regional adjustments of its own. It does not capture irregular or seasonal spending unless you average it in yourself, and it does not separate essential from discretionary items beyond the fields you fill. It is not a substitute for reviewing your full statements or for advice tailored to your situation.
About This Cost of Living Calculator
Use this cost of living calculator to get an instant estimate based on the figures you enter. Adjust the inputs above to match your situation, or browse all our calculators to plan your next step.
