Fertilizer Calculator – Urea, DAP, MOP per Acre

Convert N, P and K nutrient needs into kg and bags of Urea, DAP and MOP for your field area.

Doing the arithmetic by hand takes time and invites small mistakes. Fertilizer Calculator takes khet ka area, nitrogen n chahiye, phosphorus P₂O₅, and potash K₂O and gives an instant result you can recalculate with different values.

How to Calculate Fertilizer

Enter field area and the recommended N, P₂O₅ and K₂O in kg per acre. The tool shows Urea, DAP and MOP in kg and bags.

How is it calculated?

DAP gives P₂O₅ (46%) and some nitrogen (18%); the remaining nitrogen is supplied as urea (46% N); potash comes from MOP (60% K₂O).

Where do I find N, P, K needs?

From a soil test report or agriculture department recommendation for your crop.

Is bag size fixed?

Urea is taken as 45 kg and DAP and MOP as 50 kg bags.

Is it a substitute for soil testing?

No, always follow the soil test and local advice.

About this calculator

Convert N, P and K nutrient needs into kg and bags of Urea, DAP and MOP for your field area. Fertilizer Calculator replaces manual arithmetic with an instant, repeatable answer, lets you change one value and see the effect straight away, and reduces the chance of small mistakes in long calculations.

How to use it

Enter khet ka area, nitrogen n chahiye, and phosphorus P₂O₅, then click “Khaad Nikalein”, and finally read the result and try other numbers to compare.

Worked scenario

A quote arrives from a supplier and Fertilizer Calculator helps you check whether the figures add up.

Things to keep in mind

The answer is only as good as the numbers you enter, so double-check units and decimals. Use the result as a guide and confirm important figures with an official or professional source.

Fertilizer Calculator works inside your browser, so what you type or select here is not sent to our server for processing.

You might also try Seed Requirement Calculator for Farmers, Construction Cost Estimator, and Plot Area Calculator.

Further reading from trusted sources

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Last updated: 08 Nov 2026 • 100% free • Mobile friendly

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