Convert grams to Cavan

From volume to mass

The cavan (Spanish cabán) entered Philippine commerce as a dry-capacity measure of roughly 75 litres, filled and struck level. Capacity measures work well while a commodity is uniform and badly when it is not, and rice is not: moisture content, grain length and milling all change how much mass fits in the same volume.

Trade practice resolved this by fixing the cavan as a mass. Milled rice moves in 50 kg sacks and unmilled palay in sacks conventionally taken as 44 kg, with the difference reflecting husk and moisture. The volume definition survives only in older documents and in some provincial usage.

Why the palay and rice figures differ

Milling recovery — the proportion of palay that becomes marketable rice — runs around 60 to 65 percent in Philippine practice. A farmer paid per cavan of palay and a retailer buying per cavan of rice are therefore trading in different physical quantities under the same word, and the gap is not a rounding matter but roughly a third of the mass.

Any conversion published without stating which commodity is meant is incomplete. Government statistics from the Philippine Statistics Authority and the Department of Agriculture are careful about the distinction; market reporting frequently is not.

The cavan in policy and pricing

Farmgate palay prices, National Food Authority buying prices and provincial trading reports are all quoted per cavan, which makes the unit unavoidable for anyone modelling Philippine food economics. Because the sack is standardised, per-cavan prices are directly comparable across provinces in a way per-sack figures in less standardised markets are not.

Retail moves in kilograms. The consumer-facing price is per kilo, the producer-facing price is per cavan, and the spread between them is one of the most politically watched numbers in the country — which is a good reason to convert carefully and to state the assumed sack mass.

Practical guidance

For milled rice, use 50 kg per cavan. For palay, use 44 kg unless the source specifies otherwise, and record the assumption alongside the result. When a historical document is clearly using the capacity measure, note the 75-litre basis rather than silently applying a modern mass.

For maize, mungbean and other commodities also sacked by cavan, the mass differs again by commodity and by local practice. The unit names a sack, not a quantity of matter, so the commodity has to travel with the number.

Rice trade practice in the Philippines

The cavan is a volume measure that the Philippine rice trade uses as a mass proxy: a cavan of palay is conventionally 44 kilograms and a cavan of milled rice 50 kilograms, and government procurement, farmgate prices and yield statistics are all quoted per cavan. The underlying volume is about 75 litres, but almost nobody trades on the volume any more.

This means a cavan figure cannot be converted without knowing what is in the sack. Applying the milled-rice mass to a palay harvest overstates it by about fourteen percent, which is enough to distort a yield-per-hectare comparison completely. Statistical sources normally state the commodity alongside the cavan count, and that qualifier is the operative part of the figure.

Common mistakes to avoid

• A cavan of palay (about 44 kg) is not a cavan of milled rice (50 kg); the difference is husk and moisture, not rounding.
• Historical cavan figures may be the 75-litre capacity measure rather than a mass.
• Other commodities sacked by cavan have their own conventional masses — always state the commodity with the figure.

Questions people ask about the Cavan

How many kilograms are in one cavan of rice?

50 kg for milled rice. Unmilled palay is conventionally taken as about 44 kg per cavan.

Why do palay and rice cavans weigh differently?

Because palay includes the husk and carries more moisture. Philippine milling recovery is roughly 60 to 65 percent, so a cavan of palay yields substantially less than a cavan of milled rice.

Is the cavan still a volume measure?

Only historically. It began as a dry measure of about 75 litres; modern Philippine trade treats it as a standard sack mass, which is why the same word converts to kilograms here.