Name comparison
Compare names
Compare national popularity curves, combined-spelling ranks, trend signals, and practical duplicate estimates.
National popularity over time
Combined-spelling rank, U.S. national history. Lower ranks are more popular.
Quick verdict
Fast takeaways from the current comparison. Click a card to open that name report.
Detailed metrics
Sortable side-by-side values. Highlighted cells mark the strongest value for that row.
| Metric | Mack | Leo |
|---|---|---|
| Official rank | #463 | #19 |
| Combined rank | #322 | #20 |
| Rank difference | 141.0 | -1.0 |
| Multiplier | 1.6× | 1.0× |
| Rate per 10k | 6.3 | 47.8 |
| 1-in-N | 1,596.3 | 209.0 |
| Trend label | past peak | mixed / watch |
| Expected per 100 | 0.0 | 0.2 |
| Expected per 300 | 0.1 | 0.7 |
| Latest as % of peak | 36.0% | 89.7% |
| Peak year | 1900 | 1903 |