What a caliber number actually means
In the European and international system, the caliber is the number of fruit that fill one standard 4 kg net box. The relationship is inverse: a lower number means bigger fruit and fewer of them per box. Caliber 12 is roughly twelve large fruit at about 330 g each; caliber 30 is around thirty small fruit near 133 g each.
Under the international standard, avocados may be graded by weight or by count, and growers can choose either. Two rules keep a box honest:
- Uniformity: within a single package, the smallest and largest fruit may differ by no more than 25 g.
- Minimum weight: avocados generally must reach 123 g (the Codex edition states 125 g), but Hass has an exception at 80 g, which is why caliber 32 exists for Hass alone.
These come from UNECE Standard FFV-42 and Codex CXS 197, the two reference standards most EU and international buyers cite.
The EU / international caliber chart
This is the size-code to weight-per-fruit ladder used for the 4 kg box. Treat the gram boundaries as guidance: they shift by a few grams between standard editions, so contracts cite the standard rather than a single website.
| Size code | Weight per fruit (g) | Reads as |
|---|---|---|
| 4 | 781 – 1220 | Very large |
| 6 | 576 – 780 | Very large |
| 8 | 456 – 576 | Large |
| 10 | 364 – 462 | Large |
| 12 | 300 – 371 | Large |
| 14 | 258 – 313 | Large / medium |
| 16 | 227 – 274 | Medium (EU favorite) |
| 18 | 203 – 243 | Medium (EU favorite) |
| 20 | 184 – 217 | Medium |
| 22 | 165 – 196 | Medium / small |
| 24 | 151 – 175 | Small |
| 26 | 144 – 157 | Small |
| 28 | 134 – 147 | Small |
| 30 | 123 – 137 | Small |
| 32 | 80 – 123 | Hass only |
Editions disagree by a few grams. UNECE and Codex publish slightly different boundaries for the same code (code 24 appears as 151–175 g in one and 156–170 g in another). Quote the caliber and the standard, not a single gram figure, and confirm against your buyer's current spec.
The US carton count system
North America uses a different box, so the numbers do not match the EU ladder. The standard US carton is 25 lb (11.34 kg) net, packed in two layers, and the printed number is again the fruit count needed to fill it: higher number, smaller fruit. (A 12.5 lb half-carton also exists; on a half-carton the printed size is double the actual count.)
| US count | Category | Typical weight per fruit (oz) |
|---|---|---|
| 32 | Extra-large | 11.75 – 14.00 |
| 36 | Extra-large | 10.50 – 12.50 |
| 40 | Large | 9.50 – 11.50 |
| 48 | Large | 7.50 – 9.50 |
| 60 | Medium | 6.25 – 7.50 |
| 70 | Small / medium | 4.75 – 6.25 |
| 84 | Small | 3.75 – 4.75 |
By US trade convention, counts 32–48 are "large" and 60–84 are "small." The count ladder is industry-standard; the ounce boundaries differ between packers such as Mission Produce, Del Rey and Index Fresh, so always read them as typical rather than fixed.
Reading the EU box against the US carton
Because the two systems measure different boxes, a caliber number and a US count are not interchangeable one to one. Directionally, the large EU calibers (16–18) sit in the same fruit-size territory as US large counts (around 40–48), and the small EU calibers map toward the US 60–84 range. If you ship to both regions, work from per-fruit weight rather than the printed number, and use a packer's published interchangeability chart to confirm.
Which sizes each market wants
Caliber is not just a measurement, it is a market signal. Buyers in different regions consistently pull different sizes:
- EU and UK: larger fruit, typically caliber 16–18, sometimes 20. Premium retail rewards size, and early-season small fruit often moves in cheaper bulk boxes instead.
- United States: retail is dominated by 48 and 60 count, with foodservice leaning to larger 40–48 for consistent slice and guacamole yield; value retail bags often use small 70–84 counts.
- Asia (China, Korea, Japan): an emerging, fast-growing destination rather than a fixed size preference. Volumes are climbing quickly, but there is no single authoritative caliber standard for the region, so confirm size with each buyer.
Dry matter: the spec that really governs quality
Caliber tells you how big the fruit is. It says nothing about whether it will eat well. That is governed by dry matter, the percentage of the flesh that is not water, which is mostly oil plus solids. Oil content rises in step with dry matter, so the industry uses dry matter as a fast, practical maturity proxy instead of slow oil-extraction tests.
Dry matter is maturity, not coating. It has nothing to do with surface wax or any treatment on the skin. A higher dry matter means the fruit was picked mature enough to ripen into the creamy texture buyers expect; pick too early and the fruit stays rubbery and may never ripen properly.
The threshold varies by jurisdiction, so quote a range and match your buyer's market:
- California legal floor: about 20.8% dry matter, roughly 11.2% oil, the most-cited single reference point.
- Commercial shipping practice: packers commonly target 21.6–22%+ for fruit that ripens predictably after an ocean transit.
- Peru: harvests for export at 22% dry matter or higher.
Sources: UC Riverside, UC Davis Postharvest, and the Hass Avocado Board Quality Manual.
Where Peru fits
Peru is one of the world's largest Hass suppliers, and Hass makes up about 95% of its avocado exports. The main export season runs April or May through August or September, with peak volumes from June to August; a small early window from highland growers appears between December and April.
For the 2026 campaign, Peru is projected to ship roughly 765,000 MT (up about 6% on the prior year), with Europe taking the largest share at around 488,000 MT (~64%), the United States near 107,000 MT, and Asia around 82,000 MT as the fastest-growing destination. In practice Peru directs its larger fruit toward Europe, its premium stronghold, and flexes smaller calibers into other channels. All export fruit is harvested at 22% dry matter or above; you can see the calibers we currently ship on our Hass avocado page.
Figures from FreshFruitPortal and USDA FAS reporting; the destination split is a 2026 projection and the caliber-to-market mapping is directional trade practice, not an official table.
Spec'ing your order: a quick checklist
When you brief a supplier, pin down five things and you remove most of the back-and-forth:
- Caliber or count matched to your market and channel (retail vs foodservice).
- Minimum dry matter, stated as a percentage, not just "mature."
- Pack format: 4 kg EU box or 25 lb US carton.
- Ripeness on arrival: hard and green for ripening at destination, or pre-conditioned.
- Incoterm and destination port: FOB or CIF, and where the container lands.