What Is Inflation?
The Inflation Calculator shows how rising prices change the value of money: what a sum will cost in the future and how much purchasing power it loses.
Inflation is the gradual rise in prices over time, which means each unit of money buys a little less than it did before. A modest-looking annual rate compounds: at 5% a year, prices roughly double in about 14 years, quietly halving what your cash can buy. An inflation calculator makes that invisible erosion visible, showing what a sum will be worth — or cost — in the future.
Adjusting for Inflation
- Enter an amount in today’s money.
- Set the average annual inflation rate and the number of years.
- Read the future equivalent cost, the future buying power and the total inflation.
Common Uses
- Savers checking whether their returns actually beat inflation in real terms.
- Anyone planning a future expense and wanting to know its likely cost in years to come.
- People comparing salaries, prices or budgets across different years on a fair basis.
- Students and curious minds understanding why money loses value over time.
How the Calculation Works
Inflation compounds just like interest. The future cost of something is present value × (1 + i)^n, where i is the annual inflation rate and n the number of years. To see how much purchasing power is lost, the calculator compares that future cost with today’s money: a sum that buys a basket of goods now will buy a smaller fraction of the same basket later.
For example, at 4% inflation, $1,000 today will be worth about $1,000 ÷ (1.04)^10 ≈ $676 in purchasing power after ten years — the prices have risen while the cash stayed the same. That is why money left idle slowly loses value, and why long-term plans must account for inflation.
Advantages
- Understand why cash loses value if it isn’t invested.
- Plan future budgets and savings targets in real terms.
- Runs entirely in your browser — your figures stay private.
Inflation Analysis, Local Only
Inflation adjustments are calculated using inflation rate data as JavaScript formulas in your browser. Your amounts, dates, and inflation rates are processed entirely locally on your machine — they never reach our servers.