I10 Index Calculator

Work out i10 index instantly with clear inputs, formula shown and shareable results.

About I10 Index Calculator

The i10-index simply counts publications with at least ten citations - 22 here, which is 53.7% of a 41 paper output. Google Scholar popularised it because it is trivial to compute and communicate, though the fixed ten-citation threshold makes it far less field-neutral than the h-index.

Formulas

i10 index

the number of publications with 10 or more citations

Share of output

share = i10 index / total publications

Worked example

With the default values below, I10 Index Calculator returns i10 Index of 22. Change any input above and every figure here is recalculated in your browser.

Inputs used

Publications with at least ten citationsminimum 0: 22
Total publicationsminimum 1: 41
Years since first publicationminimum 1: 14

Results

i10 Index: 22
Share Of Output Reaching Ten Citations: 53.66%
i10 Growth Per Year: 1.57
Papers Below Ten Citations: 19

Step by step

1Values used
2i10 index
3Share of output
4i10 Index= 22
5Share Of Output Reaching Ten Citations= 53.66
6i10 Growth Per Year= 1.57
7Papers Below Ten Citations= 19

Assumptions and limits

The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

Why ten citations?

It is an arbitrary round number chosen for simplicity. That arbitrariness is the index's main weakness, since ten citations means very different things across fields.

How does it compare with the h-index?

It is easier to compute but coarser. The h-index scales with impact while i10 saturates once most papers pass ten citations.