Inflation Calculator
What will your money be worth in the future?
$
%
NZ average: ~2–3%. RBNZ target band: 1–3%.
Inflation above 3% erodes savings faster than interest earned in many term deposits — consider growth assets for long-term goals.
"Purchasing power" shows what today's dollars will actually be worth in the future — the amount of goods and services that money can buy.
Today's value$10,000
Equivalent future amount$13,439
Purchasing power today's $$7,440.94
Loss-$2,559 (25.59%)
Year 1$9,708.74
Year 2$9,425.96
Year 3$9,151.42
Year 4$8,884.87
Year 5$8,626.09
Year 6$8,374.84
Year 7$8,130.92
Year 8$7,894.09
Year 9$7,664.17
Year 10$7,440.94
How it works
Inflation measures how the purchasing power of money changes over time. The formula for future value adjusted for inflation: FV = PV × (1 + r)^t, where r is the annual inflation rate and t is the number of years.
NZ context
The Reserve Bank targets annual CPI inflation of 1–3% (midpoint 2%). Stats NZ publishes the Consumer Price Index quarterly. Current annual inflation is approximately 2–3% (as of 2026).