Enter each cost once: land preparation, seed, planting and top-dressing fertiliser, spraying and chemicals, labour, harvesting and transport. Set your acreage (in acres, with the hectare equivalent shown), your expected yield in 90kg bags per acre and the price per bag. The calculator totals the cost, the revenue and the profit, both per acre and for the whole plot.
Because every figure is a yellow input feeding a locked formula, you can test a scenario in seconds: a cheaper fertiliser, a better price, a lower yield. The premium version adds the break-even yield, the bags per acre you must reach just to cover costs, which is the single most useful number a maize farmer can know. Opens in Excel or Google Sheets.