Best Fertilizer Calculator Apps

250+ iOS apps curated and reviewed

3.5 avg rating
19 free apps
Updated November 2026

From beginner-friendly picks to power-user tools, our fertilizer calculator list covers 250+ iPhone apps updated through November 2026. Compare ratings, prices, and screenshots in one place.

Compare top Fertilizer Calculator Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1NPKalc - Fertilizer CalculatorNPKalc - Fertilizer CalculatorFree4.6★ (16)NoYesOct 2026
2GCI Turf CalculatorGCI Turf CalculatorFree—YesNoSep 2026
3Fertilizer Calc AppFertilizer Calc AppFree1.0★ (1)NoYesMay 2026
4Agri CalculatorAgri CalculatorFree—NoYesMay 2026
5Fertilizer Removal by CropFertilizer Removal by CropFree3.3★ (26)NoNoNov 2026
6NPK CalculatorNPK Calculator$2.993.3★ (8)NoNoOct 2026
7P&K Nutrient CalculatorP&K Nutrient CalculatorFree—NoNoAug 2026
8Plot CalculatorPlot CalculatorFree—NoNoMay 2026

Top Picks for Fertilizer Calculator

NPKalc - Fertilizer Calculator#1

NPKalc - Fertilizer Calculator by Barton Cone

Simple Fertilizer Calculator
Editor's Choice
🔧 Utilities
4.6(16 ratings)
FreeIn-App Purchases
NPKalc - Fertilizer Calculator screenshot 1
NPKalc - Fertilizer Calculator screenshot 2
NPKalc - Fertilizer Calculator screenshot 3
NPKalc - Fertilizer Calculator screenshot 4
NPKalc - Fertilizer Calculator screenshot 5

This app helps calculate fertilizer needs for various applications, supporting both granular and liquid types with flexible unit inputs. It's designed for anyone managing lawns, gardens, or larger agricultural areas.

Fertilizer Calc App#3

Fertilizer Calc App by Alberto Giambone

Farm Calculator
Worth Considering
🔧 Utilities
1.0(1 ratings)
FreeIn-App Purchases
Fertilizer Calc App screenshot 1
Fertilizer Calc App screenshot 2
Fertilizer Calc App screenshot 3
Fertilizer Calc App screenshot 4

This app helps farmers precisely calculate fertilization needs for their crops. Users can input field details, set fertilization targets for key nutrients like N, P, and K, and determine the required application rates per hectare. It also supports custom area units for flexible calculations.

More Fertilizer Calculator apps to explore

FAQ about Fertilizer Calculator

What are the best fertilizer calculator apps for iPhone?
NPKalc - Fertilizer Calculator tops our fertilizer calculator apps ranking as of November 2026, with a 4.6-star average from 16 App Store ratings, and it's free to download.
Yes — 19 of the top fertilizer calculator apps we rank are free to download, including NPKalc - Fertilizer Calculator and GCI Turf Calculator.
NPKalc - Fertilizer Calculator has no ads and offers in-app purchases, according to its App Store listing as of November 2026.
We track 250+ fertilizer calculator apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.

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