Wheat Seed Rate Calculator

Wheat seed rate per acre in kg — calculate seed for broadcast, drill or late sowing. Use the free Wheat Seed Rate Calculator below — enter your values and get instant results, right in your browser. Seed (kg) = acres × 50 (broadcast), 40 (drill) or 60 (late sowing). Bags = kg ÷ 50.

How to use the Wheat Seed Rate Calculator

Seed is the first cost of the wheat season, and the right rate depends on how you sow: broadcast scattering needs 50 kg per acre, a seed drill places seed precisely at 40 kg, and late sowing needs a heavier 60 kg to compensate for lost tillering time. This wheat seed rate calculator multiplies your acreage by the method rate to give total kilos and 50-kg bags, so you buy certified seed once — running short at sowing time means a thin, weedy crop all season.

  1. Enter the area you will sow in acres.
  2. Select your sowing method — broadcast, drill or late sowing.
  3. Click Calculate to see total seed in kg and 50-kg bags.
  4. Buy certified seed; add one extra bag only if your germination test was weak.

Formula

Seed (kg) = acres × 50 (broadcast), 40 (drill) or 60 (late sowing). Bags = kg ÷ 50.

Worked example

Sowing 5 acres by broadcast: 5 × 50 = 250 kg of seed, which is exactly 5 bags of 50 kg. With a drill the same area needs only 200 kg — a full bag saved. Test germination of farm-saved seed before sowing, because weak seed at the right rate still gives a thin crop.

Frequently asked questions

50 kg per acre for broadcast, 40 kg with a seed drill, 60 kg for late sowing.

The drill places seed at uniform depth and spacing, so germination is higher and less seed is wasted on the surface.

Yes — 60 kg per acre compensates for the shorter tillering period when wheat is sown late.

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