Historical inflation calculator
What an amount of New Zealand money is worth in another year, on the official consumers price index.
What the index actually measures
The consumers price index tracks what a fixed basket of goods and services costs over time. It is the official measure of inflation in New Zealand, and it is what pay rounds, benefit adjustments and the Reserve Bank's target are argued over.
It is an average. The basket is weighted to what households collectively buy, so a year with sharp rent rises and flat electronics can leave the headline number looking calm to someone who rents and busy to someone who does not.
Why the early years are thinner
Stats NZ published one or two readings a year until 1926, and four a year since. This page uses whatever was published for the year you pick, and says so above when your choice lands on one of the thin ones.
The current year runs only to the most recent quarter, so it is a part-year average until the December quarter is out.