Farming
Crop Yield Calculator
Crop yield per hectare or acre from plot results, with the total harvest and revenue.
yield = sample weight ÷ sample area × 10,…
Also called yield per hectare · harvest calculator
Garden, Farm & Pets · 9 calculators
Farming Calculators
Crop yield, seed rate, plant population, fertiliser rate, irrigation water, harvest loss and farm cost per acre.
Farming
Seed Rate Calculator
Seed needed per hectare from the target plant population and thousand-grain weight.
kg/ha = target plants ÷ establishment × 1…
Also called sowing rate calculator · seed per hectare
Farming
Plant Population Calculator
Plants per hectare from row spacing and in-row spacing, with the total for a field.
plants/ha = 10,000 ÷ (row spacing × in-ro…
Also called plants per hectare · crop density calculator
Farming
Fertilizer Rate Calculator
Fertiliser rate per hectare for a nutrient target, with the total and cost.
rate = nutrient target ÷ nutrient percent…
Also called fertiliser per hectare · npk rate calculator
Farming
Irrigation Water Calculator
Irrigation water needed for a crop, in millimetres, cubic metres and pumping hours.
m³ = (crop need − rainfall) ÷ efficiency …
Also called crop water requirement · irrigation calculator
Farming
Land Area Calculator
Plot area in acres, hectares, square metres and local units such as bigha and gunta.
Heron’s formula for triangles; length × w…
Also called plot area calculator · land measurement
Farming
Harvest Loss Calculator
Harvest losses from sample counts, as a percentage and in money lost.
loss kg/ha = grains per m² × 10,000 × TGW…
Also called combine loss calculator · grain loss
Farming
Feed Requirement Calculator
Daily and total feed for livestock from body weight and intake percentage.
daily feed = body weight × intake % × (1 …
Also called livestock feed calculator · daily feed intake
Farming
Farm Cost Calculator
Cost of production per hectare and per tonne, with the break-even price.
cost per tonne = total cost per hectare ÷…
Also called cost of production calculator · farm budget per hectare
Key farming formulas
| Crop Yield | yield = sample weight ÷ sample area × 10,000, adjusted for moisture |
|---|---|
| Seed Rate | kg/ha = target plants ÷ establishment × 10,000 × TGW ÷ 1,000,000 |
| Plant Population | plants/ha = 10,000 ÷ (row spacing × in-row spacing in metres) |
| Fertilizer Rate | rate = nutrient target ÷ nutrient percentage |
| Irrigation Water | m³ = (crop need − rainfall) ÷ efficiency × 10 × hectares |
| Land Area | Heron’s formula for triangles; length × width for rectangles |
| Harvest Loss | loss kg/ha = grains per m² × 10,000 × TGW ÷ 1,000,000 |
| Feed Requirement | daily feed = body weight × intake % × (1 + wastage) |
| Farm Cost | cost per tonne = total cost per hectare ÷ yield |