To save having to calculate this every time I think about HLL, here is a quick reference for log2m to error rate conversion. The error rate is presented to a max of 2 decimal places
| Log2m | Error Rate ± % |
|---|---|
| 9 | 4.60 |
| 10 | 3.25 |
| 11 | 2.30 |
| 12 | 1.63 |
| 13 | 1.15 |
| 14 | 0.81 |
| 15 | 0.57 |
| 16 | 0.41 |
| 17 | 0.29 |
| 18 | 0.20 |
| 19 | 0.14 |
| 20 | 0.10 |