Compare future prices, the purchasing power of cash, and the inflation-adjusted value of interest-bearing savings.
USD inputs · transparent calculation assumptions
Instant updates as inputs change
Data is calculated in this browser only
USD inputs · transparent calculation assumptions
Cash purchasing power in today’s dollars$7,440.94
Future cost of today’s purchase
$13,439.16
Cash purchasing-power loss / gain
$2,559.06
Nominal savings value
$14,802.44
Real savings value
$11,014.41
Real annual savings return
0.97%
Cash purchasing-power halving time
23.45 years
Calculation notes
Understand the Inflation adjusted calculator
Inflation factor = (1 + inflation rate)^years. Cash purchasing power = amount / factor; future purchase cost = amount × factor. Real savings value grows the nominal savings first, then divides by inflation. The calculation runs locally and keeps cash-flow timing consistent with the stated assumptions.
Formula and logic
How do I adjust cash and savings for inflation over time?
Inflation factor = (1 + inflation rate)^years. Cash purchasing power = amount / factor; future purchase cost = amount × factor. Real savings value grows the nominal savings first, then divides by inflation.
Worked example
What purchasing power does $10,000 retain after ten years of 3% inflation?
At 3% annual inflation for ten years, $10,000 cash has about $7,440.94 of today’s purchasing power. A purchase costing $10,000 today would cost about $13,439.16 under the same assumption.
How to read the result
How is real savings return calculated when prices rise?
Future price and cash purchasing power move in opposite directions under positive inflation.
Real return = (1 + savings return) / (1 + inflation) − 1; deflation can increase cash purchasing power.
Limits and assumptions
Does the inflation calculator use historical CPI or forecast inflation?
Uses a constant, user-entered inflation scenario rather than historical CPI or a forecast. Taxes, fees and unequal category inflation are excluded. Purchasing-power halving time is not applicable with zero inflation or deflation.