Seed Calc

Fertilizer calculator

From an N-P-K dose to the bags of urea, DAP and potash for the whole field.

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The season: urea, DAP, MOP and seed for all your fields

From N-P-K to products

In the Fertiliser tab, type the Recommended dose (N-P-K) from your soil test or your adviser, per acre or per hectare. The app takes the phosphorus from DAP, the potassium from MOP (potash), then completes the nitrogen with Urea, counting what DAP already brings. It warns you when DAP alone brings more nitrogen than asked.

Bags to buy

Each product becomes kilograms or pounds for the field, then bags: full bags and the loose rest. The preset bag is 50 lb, 50 kg in metric units, and 45 kg for urea in South Asia; change the Pack size to match your dealer. Add the Price per pack to read the Estimated cost.

For the whole season

The Season tab adds the fertilizer of every sown field, and counts the bags on the total. Send the list shares it with your dealer in one message. The app never suggests a dose: it calculates the one you enter.

Quick calculation on any area, without a field

Read the full guide →

Know what to buy before the season

Measure the field, enter your doses, send the list. No subscription.

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