Bushels/acre to Kg/ha

How Many Kg/ha in a Bushel per Acre?

To convert bushels per acre to kilograms per hectare, multiply by 67.25. The formula is kg/ha = bu/ac × 67.25, based on the 60 lb/bushel standard used for wheat and soybeans. For example, 50 bushels per acre equals 3,363 kg/ha. The factor 67.25 comes from combining a 60 lb bushel (27.216 kg) with the fact that one hectare covers 2.471 acres. This converter is designed for wheat and soybeans, which share the same 60 lb/bushel legal standard in the United States. If you are comparing with international yield tables from the FAO, OECD, or foreign agricultural ministries, this tool gives you the metric equivalent of any US wheat or soybean yield report. The crop restriction matters because a bushel is not a universal weight in agriculture: corn, barley, oats, and rye each use different standard bushel weights. It also matters to keep the moisture basis aligned, since a 50 bu/ac wheat yield at standard market moisture is not directly comparable with a field weight figure reported before drying or adjustment. That distinction is easy to miss in mixed-source market commentary.

How to Convert Bushels per Acre (wheat) to Kilograms per Hectare

1. Start with the yield in bushels per acre (bu/ac) for wheat or soybeans.
2. Multiply by 67.25 to get kilograms per hectare (kg/ha).
3. Quick check: 50 bu/ac = 3,363 kg/ha and 100 bu/ac = 6,725 kg/ha.
4. Before comparing with another source, confirm both yields are expressed at the same grain moisture basis.

Real-World Examples

History of Bushels per Acre (wheat) and Kilograms per Hectare

The bushel has ancient origins as a dry volume measure. In the US, grain bushels were standardized by weight in the 19th century because volume measurement was inconsistent — grain settles, moisture content varies, and test weight differs by variety. Congress and state legislatures defined legal bushel weights: 60 pounds for wheat (1836), 56 pounds for corn, and so on. These "standard bushels" are actually weight units masquerading as volume units, which creates confusion when converting to the purely weight-based metric system. The USDA and Chicago Board of Trade (now CME Group) quote all US grain futures and crop reports in bushels per acre, making this unit central to global grain markets despite its imperial origins. International organizations like the FAO and OECD report in metric tonnes per hectare, requiring constant conversion.

Common Mistakes to Avoid

• Forgetting that a "bushel" in agriculture is a weight, not a volume. Actual grain volume varies with moisture content and test weight — the bushel weight is a legal standard, not a physical measurement.
• Not accounting for moisture content. US wheat yields are typically reported at 13.5% moisture, soybeans at 13%. If comparing to metric yields at different moisture baselines, adjust accordingly.
• Using this 67.25 factor for corn or barley. It only works for wheat and soybeans because they share the 60 lb/bushel legal standard. Corn uses 56 lb/bushel, barley 48 lb/bushel, and oats 32 lb/bushel.
• Treating a field-measured wet grain weight as if it were already a standard-moisture bushel yield. If the grain has not been adjusted to the crop's reporting moisture, the converted kg/ha value will not match official yield summaries.

Frequently Asked Questions