Index Factor Calculator
Composite base year
Which base year the composite index is expressed in. Every series is rescaled into it by the merge factors, so the Index Factor is the same either way.
Latest available: Jun 2026. Will extrapolate up to the selected assessment period. The growth rate is measured on the Composite, from each commodity's earliest published period at or after the beginning month.
Select commodities and an assessment date, then click Calculate.

Index Factor = Assessment Date Index ÷ Index of the Period