See what today's money will cost in future, what a future amount is worth in today's terms, and how much purchasing power inflation removes along the way. Includes category presets for education, healthcare, housing and lifestyle, and the real return your investments are actually earning.
Step 1
Enter an amount
A monthly expense, an annual cost, or a target you are saving towards.
Step 2
Pick an inflation rate
Use the general rate, or choose a category preset — education and healthcare run well above headline inflation.
Step 3
Set the horizon
How many years forward you want to look.
Step 4
Read it both ways
What the same thing will cost, and what your money will buy. Add a return to see the real rate you are earning.
The same spending in 25 years
$214,594
Buying exactly what $50,000 buys today will cost this much, at 6% a year.
What $50,000 will buy
$11,650
Held in cash for 25 years, this is what it would still be worth in today's terms.
Money halves in value every
11 yrs 11 mo
At 6%, cash loses half its buying power in this time.
Inflation compounds in exactly the way investment returns do. That is why beating it is not optional over long horizons — holding cash is a decision to lose 77% of your purchasing power over 25 years.
Inflation is compound growth applied to prices. The same relationship read forwards gives the future cost of something; read backwards it gives what a future amount is worth today.
Future cost = Present cost × (1 + i)ⁿAnnual inflation rate
As a decimal, so 6% is 0.06.
Number of years
The horizon you are looking across.
Value in today's money
Amount ÷ (1 + i)ⁿ — what a fixed future sum actually buys.
Growth above inflation
((1 + nominal) ÷ (1 + inflation)) − 1, which is what your money genuinely gains.
Years for prices to double
Approximately 72 ÷ the inflation percentage.
The real return deserves care, because the intuitive subtraction is wrong in a way that matters over long horizons. An 8% return with 6% inflation is not a 2% real return but 1.887%, since the return has to grow the money and cover the higher price level at the same time. Over 30 years that apparently trivial difference compounds into roughly a 3% gap in the final purchasing power, and the error grows as both rates rise.
Answers about the inflation calculator.
Continue exploring adjacent tools in this topic.
Background reading on the ideas behind these numbers.
This tool is provided for educational purposes only. Results are estimates based on the values you enter and do not constitute financial advice.