Updated July 2026.
The IBA drink is the Cuba Libre: 50 ml white rum, 120 ml cola, and 10 ml fresh lime. Cola is 0.0% ABV. A US 1.5-ounce pour of 40% rum (Bacardi Superior on typical US bottles) is one NIAAA drink; the IBA 50 ml pour is about 1.13. Captain Morgan Original Spiced is 35% in the US — 0.88 drinks per 1.5 ounces. This is not a 2023 ranking of 15 rums.
Gold or aged rum at the same proof is the same ethanol, different color. Related: alcohol with Coke, Captain vs Bacardi, Bacardi.
Same mixer, different proof
| Build | Typical US ABV | Drinks |
|---|---|---|
| IBA Cuba Libre (50 ml white rum) | 40% | ~1.13 |
| 1.5 oz Bacardi Superior + cola | 40% | 1.00 |
| 1.5 oz Captain Original Spiced + cola | 35% US | 0.88 |
| 2 oz 40% rum + cola | 40% | 1.33 |
| Cola | 0.0% | 0 |
Four 2-ounce 40% rum-and-Cokes are about 5.3 drinks. NIAAA binge pattern is a health line, not a target. Hours to buy the bottle are state law. No invented MSRP. Pour math: rum drinks.
Sources
- IBA Cuba Libre: 50 ml white rum, 120 ml cola, 10 ml lime.
- Bacardi Superior US 40% (prior page). Captain Original Spiced US 35% (prior flag).
- NIAAA December 2025. No 15-rum ranking or MSRP.