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 | Isac | Cooper |
|---|---|---|
| Official rank | #4600 | #27 |
| Combined rank | #49 | #28 |
| Rank difference | 4,551.0 | -1.0 |
| Multiplier | 271.8× | 1.0× |
| Rate per 10k | 35.0 | 43.7 |
| 1-in-N | 285.6 | 228.6 |
| Trend label | mixed / watch | recently peaked |
| Expected per 100 | 0.2 | 0.2 |
| Expected per 300 | 0.5 | 0.7 |
| Latest as % of peak | 64.8% | 100.0% |
| Peak year | 2013 | 2025 |