Inflation Calculator
Estimate how rising prices change the buying power of money over time.
Use the inflation calculator
Estimate how rising prices change the buying power of money over time.
Original amount of money
Average annual inflation rate
How many years to project
Enter your values to see the result.
Inflation Calculator formula
Future cost = current amount × (1 + inflation rate)^years
Use this tool for a fast estimate before checking a full spreadsheet, payslip, quote or planning document.
£100 at 3% inflation for 5 years becomes about £115.93.
Compare scenarios quickly by changing one or two inputs at a time.
Frequently asked questions
No. This tool uses a steady average rate for a clean estimate.
Yes. The result shows the extra amount needed to match the same spending power.
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