Free tool · No account required

Purchasing power calculator: the future cost of your life

Enter your monthly spending and explore what the same lifestyle could cost after inflation. See monthly and annual costs on an interactive timeline.

Your everyday money

What will the same life cost?

10 years
Try it

Example amounts. Currency sets the unit; no exchange-rate conversion. Constant inflation, chosen by you. No interest earned on cash. An illustration, not an inflation forecast.

In 10 years, the same monthly life will costUSD 3,360 / month

instead of USD 2,500 today · USD 860 more every month

TodayYear 10
Same basket’s cost Unchanged cash’s buying power
Monthly cost change+34.4%
Annual spending at year 10USD 40,317

How the calculation works

Future monthly spending = M × (1 + i)^y; future annual spending = 12 × future monthly spending

M is today’s monthly spending, i your annual inflation assumption as a decimal, and y whole years. The model holds the basket and quantities constant. It shows the nominal spending needed to buy the same basket later, alongside the buying power of unchanged cash.

Limitations

This does not model changes in lifestyle, household size, income, your spending mix or exchange rates. Inflation is a constant scenario assumption, not a forecast. Annual spending is 12 times the monthly figure at the selected year.

General education only. These are illustrations, not personal recommendations. Our methodology explains the model and limitations.

Questions, answered.

Does this predict my actual future expenses?

No. Your spending mix and individual prices may change differently. This is a constant-rate scenario.

Does currency selection convert my money?

No. It changes the unit shown beside your amounts. Enter all amounts in the same currency; no exchange-rate conversion is performed.

What if inflation is zero?

The same basket costs the same amount in every year under this model.

Embed this calculator

Use this responsive embed on your website. Keep the source link so readers can inspect the formula.

<iframe src="https://mymoneynotebook.com/embed/purchasing-power/" title="Purchasing power calculator: the future cost of your life" width="100%" height="1000" style="border:0" loading="lazy"></iframe> <a href="https://mymoneynotebook.com/calculators/purchasing-power/">Purchasing power calculator: the future cost of your life</a>
You’re in control

A little privacy, please.

Optional cookies and tools help us understand how the site is used. They stay off unless you allow them. You can change your mind anytime.

Customize choices

Our own visit statistics use no cookies. Calculator inputs and quiz answers stay in your browser.