Skip to content
ENExplore Calculators

Harvest Loss Percentage Calculator

Work out harvest loss percentage instantly with clear inputs, formula shown and shareable results.

About Harvest Loss Percentage Calculator

Harvest loss is the gap between the yield standing in the field and the yield reaching the storehouse, expressed as a percentage of the standing crop. It bundles shattering, header loss, threshing loss and spillage. Costing it at the grain price shows whether a combine adjustment or an extra labour pass pays for itself.

Formulas

Harvest loss

Loss % = (standing yield - harvested yield) x 100 / standing yield

Value

Loss value = loss per ha x area x price per tonne

Worked example

With the default values below, Harvest Loss Percentage Calculator returns Harvest Loss of 8.00%. Change any input above and every figure here is recalculated in your browser.

Inputs used

Standing Crop Yield Estimateminimum 0.01 t/ha
5 t/ha
Grain Actually Harvestedminimum 0 t/ha
4.6 t/ha
Areaminimum 0.01 ha
3 ha
Grain Priceminimum 0 per tonne
22,000 per tonne

Results

Harvest Loss
8.00%
Loss Per Hectare
0.400
Total Grain Lost
1.200
Value Of Loss
$26,400.00

Step by step

  1. 1Values used
  2. 2Harvest loss
  3. 3Value
  4. 4Harvest Loss= 8.00
  5. 5Loss Per Hectare= 0.400
  6. 6Total Grain Lost= 1.200
  7. 7Value Of Loss= 26,400.00

Assumptions and limits

  • The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 3 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

How do I estimate the standing yield?

Cut and thresh several 1 m2 quadrats before the harvester passes, average them and scale to a hectare. Take at least five samples spread across the field.

What loss level is normal?

Well-set combine harvesting typically loses 2-4%. Manual harvesting and threshing commonly loses 5-10%, and over-ripe or lodged crops much more.

Related Calculators

Harvest Loss Percentage Calculator | Calcrivo