Bushels to Kilograms Calculator and Conversion Guide

Convert bushels to kilograms by multiplying the bushel amount by the commodity’s standard weight per bushel; enter the bushels and select the commodity to get an estimated mass in kilograms. A bushel is a volume measure, so there is no single kilogram value that applies to every crop.

Formula

Mass in kilograms = bushels × commodity weight in kilograms per bushel. In symbols, kg = bu × kg/bu.

• bu is the entered number of bushels, a volume quantity.
• kg is the resulting estimated mass in kilograms.
• kg/bu is the selected standard weight per bushel for the commodity. The values in the selector use commonly applied U.S. grain test-weight conventions.

The second output converts kilograms to pounds using 1 pound = 0.45359237 kilogram. It is a reference result, not a separate bushel conversion.

Worked Example

Using the calculator’s defaults—1 bushel of wheat, at 27.2155 kilograms per bushel:

1. Multiply the quantity by the wheat factor: 1 bu × 27.2155 kg/bu = 27.2155 kg.
2. Round the kilogram output to two decimal places: 27.22 kg.
3. Convert that mass to pounds: 27.2155 ÷ 0.45359237 = 60.0000 lb, or 60.00 lb to two decimals.

The calculator therefore returns 27.22 kilograms and 60.00 pounds for its default inputs.

Why a Bushel Does Not Have One Fixed Mass

A bushel is a unit of volume, traditionally equivalent to 8 U.S. dry gallons or 2,150.42 cubic inches. Kilograms measure mass. To convert between volume and mass, you need the material’s density or an agreed commodity-specific weight standard.

For example, a bushel of oats is conventionally assigned a lower test weight than a bushel of wheat. Even for the same crop, actual grain can vary with moisture, variety, impurities, and how densely it settles. That is why a generic “bushels to kg” answer is incomplete unless the crop or conversion convention is specified.

The factors in this calculator are typical standard grain weights, not a guarantee of the mass of a particular load. They are useful for common estimates and comparisons, but a measured mass is preferable for transactions, freight planning, or inventory records where precision matters.

How to Use the Calculator

1. Enter the number of bushels. The calculator accepts zero or a positive amount.
2. Choose the commodity that matches the material. Do not select a similar-looking crop just because its factor is convenient.
3. Read the result in kilograms. Use the pounds output if you need the corresponding U.S. customary mass.
4. Keep unrounded figures for further calculations where possible; round only the displayed or final value to avoid accumulating rounding error.

For a quick manual calculation, find the appropriate kilograms-per-bushel factor and multiply. For instance, 10 bushels of corn at 25.4012 kg/bu gives 254.012 kg, or about 254.01 kg. The units cancel correctly: bushels × kilograms per bushel leaves kilograms.

Commodity Factors and Conventions

The calculator lists these representative factors, rounded to four decimal places:

• Wheat: 27.2155 kg/bu (60 lb/bu)
• Corn: 25.4012 kg/bu (56 lb/bu)
• Soybeans: 27.2155 kg/bu (60 lb/bu)
• Barley: 21.7724 kg/bu (48 lb/bu)
• Oats: 14.5150 kg/bu (32 lb/bu)
• Rye and sorghum: 25.4012 kg/bu (56 lb/bu)

These are conventional grain test weights often used in U.S. commodity calculations. They do not mean that every physical bushel will weigh exactly that amount. Standards and grading details can depend on the crop and the purpose of the calculation; check the applicable specification when a contract, official grade, or specialized agricultural record requires a defined method.

Common Conversion Mistakes and Limits

• Using one factor for every crop: a volume unit has no universal mass equivalent. Identify the commodity first.
• Confusing U.S. and imperial bushels: this calculator uses the U.S. bushel convention. An imperial bushel is a different volume, so the listed factors should not be applied to it without adjustment.
• Treating the estimate as a scale reading: moisture and packing can change actual mass. Use a calibrated weighing method when you need the real load mass.
• Mixing volume and mass units: kilograms and pounds are mass units; liters and cubic feet are volume units. A conversion between them needs a specified density or commodity factor.
• Rounding too early: preserve the factor and intermediate result at adequate precision, then round the final answer. The displayed two decimals are convenient, not a claim of measurement accuracy.

If the material is not a listed grain, do not assume one of these factors applies. Obtain a relevant density or an agreed kilograms-per-bushel value. If the source provides density in kilograms per cubic meter, convert the bushel volume to cubic meters and multiply by that density; actual bulk density still varies with conditions.

Frequently Asked Questions

How many kilograms are in one bushel?
It depends on the commodity and the bushel convention. Under the factors used here, one bushel is 27.22 kg for wheat, 25.40 kg for corn, and 14.52 kg for oats, rounded to two decimals.

How do I convert bushels to kilograms?
Multiply the number of bushels by the selected commodity’s kilograms-per-bushel factor. For example, 5 bushels of soybeans × 27.2155 kg/bu = 136.0775 kg, or about 136.08 kg.

Is a bushel a measure of weight or volume?
A bushel is a measure of dry volume. Its mass depends on what fills it and on the density or standard weight assigned to that commodity.

Are these conversions exact?
The arithmetic is exact for the factor entered, but the factor is a standard estimate. The actual mass of a particular bushel can differ due to moisture, grain condition, and packing.

Can I use this for an imperial bushel?
No, not directly. The calculator uses U.S. bushels. Imperial bushels have a different volume, so you need the relevant imperial-volume conversion and an appropriate material density or standard.

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in b | Bushels | bu | 1 | 0
sel w | Commodity weight | kg/bu: wheat=27.2155, corn=25.4012, soybeans=27.2155, barley=21.7724, oats=14.5150, rye=25.4012, sorghum=25.4012
out kg | Kilograms | kg | b * w | 2
out lb | Pounds | lb | kg / 0.45359237 | 2