Decile Calculator

Decile Calculator

Sort a dataset and calculate the nine deciles using the percentile definition.

Last updated: June 2026 | By Patchworkr Team

Statistics tool

Build your dataset

Empty entries and invalid tokens are rejected.

Dataset summary
Count
15
Min
12
Max
70
Deciles
D1
10th percentile
16.2000
D2
20th percentile
21.2000
D3
30th percentile
25.6000
D4
40th percentile
29.2000
D5
50th percentile
35.0000
D6
60th percentile
42.0000
D7
70th percentile
49.0000
D8
80th percentile
56.0000
D9
90th percentile
63.0000

What are deciles?

Deciles split an ordered dataset into 10 equal parts. D1 is the 10th percentile, D5 is the median, and D9 is the 90th percentile.

They are useful for understanding spread and comparing how values sit within the full distribution.

How it works

Dk = percentile(dataset, k / 10)

The dataset is sorted before the percentile calculation, and invalid entries are rejected instead of being ignored.

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