Test weight calculators for Canadian grains
JavaScript must be enabled to use the calculators. If you are unable to use JavaScript, you can calculate test weight by using our test weight conversion charts.
Use these calculators to convert units of measurement or to determine the weight and volume of grain.
 Select the calculator you wish to use
 Enter the required value(s) in the input field(s)
 Click the “Convert” button to get results
 When finished, click the “Reset” button to clear the values
Test weight conversions from halflitre sample weights

Wheat
Equations used:
kg/hL = 1.4767 + (0.2012 x g/0.5L)
lb/bu‐A = (kg/hL) / 1.247
lb/bu‐W = g/0.5 L x 0.1552 
Amber durum
Equations used:
kg/hL = 0.7572 + (0.202 x g/0.5 L)
lb/bu‐A = (kg/hL) / 1.247
lb/bu‐W = g/0.5 L x 0.1552 
Oats
Equations used:
kg/hL = 4.3122 + (0.1986 x g/0.5 L)
lb/bu‐A = (kg/hL) / 1.247
lb/bu‐W = g/0.5 L x 0.1552 
Barley
Equations used:
kg/hL = −0.3063 + (0.2089 x g/0.5 L)
lb/bu‐A = (kg/hL) / 1.247
lb/bu‐W = g/0.5 L x 0.1552 
Hulless barley
Equations used:
kg/hL = 5.7215 + (0.1884 x g/0.5 L)
lb/bu‐A = (kg/hL) / 1.247
lb/bu‐W = g/0.5 L x 0.1552 
Rye
Equations used:
kg/hL = 2.2266 + (0.1995 x g/0.5 L)
lb/bu‐A = (kg/hL) / 1.247
lb/bu‐W = g/0.5 L x 0.1552 
Flaxseed
Equations used:
kg/hL = 6.3164 + (0.192 x g/0.5 L)
lb/bu‐A = (kg/hL) / 1.247
lb/bu‐W = g/0.5 L x 0.1552 
Buckwheat
Equations used:
kg/hL = 0.064 + (0.2032 x g/0.5 L)
lb/bu‐A = (kg/hL) / 1.247
lb/bu‐W = g/0.5 L x 0.1552 
Corn
Equations used:
kg/hL = 2.1025 + (0.192 x g/0.5 L)
lb/bu‐A = (kg/hL) / 1.247
lb/bu‐W = g/0.5 L x 0.1552 
Soybeans
Equations used:
kg/hL = 2.3696 + (0.1896 x g/0.5 L)
lb/bu‐A = (kg/hL) / 1.247
lb/bu‐W = g/0.5 L x 0.1552 
Sunflower seed, confectionery
Equations used:
kg/hL = 1.2128 + (0.1925 x g/0.5 L)
lb/bu‐A = (kg/hL) / 1.247
lb/bu‐W = g/0.5 L x 0.1552 
Sunflower seed, oil
Equations used:
kg/hL = 2.2156 + (0.194 x g/0.5 L)
lb/bu‐A = (kg/hL) / 1.247
lb/bu‐W = g/0.5 L x 0.1552 
Canola
Equations used:
kg/hL = 1.9922 + (0.1957 x g/0.5L)
lb/bu‐A = (kg/hL) / 1.247
lb/bu‐W = g/0.5 L x 0.1552 
Other grains
Equations used:
lb/bu‐A = (g/0.5 L) x 2 / (453.6 g/lb) x 36.369 L/buA
lb/bu‐W = (g/0.5 L) x 2 / (453.6 g/lb) x 35.239 L/buW
Determining grain weights and volumes
Bushels in a metric tonne
Equation used:
bushels = (1000 kg/t ) / (lb/bu x 0.4536 kg/lb)
Tonnes from bushels
Equation used:
Metric tonnes = (lb/bu) x (bu) x 0.4536 (kg/lb) x 0.001 t/kg
Volume of grain in a cylindrical bin
Note: These calculations provide only approximations of volume and depend on the accuracy of measurements and conformance to the shape shown.
Equations used:
litres = 3.1415 x [diameter (m) x 0.5]^{2} x height (m) x 1000 L/m^{3}
Avery (Imperial) bushels = litres / (36.369 L/buA)
Winchester (U.S.) bushels = litres / (35.239 L/buW)
Volume of grain in a conical pile
Note: These calculations provide only approximations of volume and depend on the accuracy of measurements and conformance to the shape shown.
Equations used:
litres = 3.1415 x [diameter (m) x 0.5]^{2} x 1/3 height (m) x 1000 L/m^{3}
Avery (Imperial) bushels = litres / (36.369 L/buA)
Winchester (U.S.) bushels = litres / (35.239 L/buW)
Volume of grain in a box
Note: These calculations provide only approximations of volume and depend on the accuracy of measurements and conformance to the shape shown.
Equations used:
box volume (litres) = height (m) x length (m) x depth (m) x 1000 L/m^{3}
Avery (Imperial) bushels = litres / (36.369 L/buA)
Winchester (U.S.) bushels = litres / (35.239 L/buW)
Weight of a specified volume of grain
Equations used:
(lb/bu‐A x 0.4536 kg/lb) / 36.4 L/bu x (litres)
(lb/bu‐W x 0.4536 kg/lb) / 35.2 L/bu x (litres)
Converting units of volume
Equations used:
Avery (Imperial) bushels = litres / 36.369 L/buA
Winchester (U.S.) bushels = litres / 35.239 L/buW
cubic feet = litres x 0.0353 L/ft^{3}
Converting units of weight
Equations used:
kilograms = lbs x 0.4536 kg/lb
pounds = kg / 0.4536 kg/lb
Unit equivalents for volumes and weights
1 Avery (Imperial) bushel = 36.37 litres = 1.28 cubic feet
1 Winchester (U.S.) bushel = 35.24 litres = 1.24 cubic feet
1 pound = 453.6 grams = 0.4536 kilograms
1 cubic metre = 1000 litres
Related Links
 Date modified: