NPKalc - Fertilizer Calculator app icon

Apps Like NPKalc - Fertilizer Calculator for iPhone and iPad

Calculate doses and units

Calculate requirements for granular and liquid types using various unit measurements. Input soil test results and desired nutrient levels. pplication rates for lawns, gardens, and crops. Export results for record-keeping.

by Barton Cone★ 4.39 ratingsUtilitiesFreeData updated 2026-09-06

NPKalc - Fertilizer Calculator screenshots

Ranked alternatives

Showing 261–280 of 1,000 ranked alternatives.

  1. Aperture Area Calculator app icon

    Aperture Area Calculator

    Tan Chia Ling

    Calculate with precision

    Calculate using input values and formulas. Copy results to other apps. Choose from multiple unit options. Display up to 16 decimal places. Include formulas for reference.

    ★ 0.00 ratingsUtilities$2.99Data updated 2026-09-15
  2. StorageMax app icon

    StorageMax

    RecordMax Inc

    Rent units, pay bills, open gates

    Manage storage unit rentals with real-time pricing and availability. Rent units, make payments, and open entrance gates remotely. View unit details and track rental status through the .

    ★ 4.7194 ratingsUtilitiesFreeData updated 2026-09-12
  3. Decking calculator, material app icon

    Decking calculator, material

    Phan Nhat Đang

    Calculate boards and fasteners

    Calculate boards and fasteners needed for a project. Input dimensions to determine quantity of boards, screws, and hidden fasteners. Estimate total cost for materials based on input measurements.

    ★ 4.5176 ratingsUtilitiesFreeData updated 2026-09-26
  1. My Calculator - MyTools app icon

    My Calculator - MyTools

    iDaily Corp.

    Calculate, edit, and share equations

    Performs basic and scientific calculations. View and share calculation history. Switch between landscape and portrait modes. Choose from customizable themes to personalize the interface.

    ★ 4.7140 ratingsFinanceFreeData updated 2026-09-08
  2. Flat Pattern Cone Calculator app icon

    Flat Pattern Cone Calculator

    Bhavinkumar Satashiya

    Calculate dimensions and patterns

    Calculate dimensions for right, oblique, or truncated cones. Input base radius, height, and angle to generate measurements. Export dimensions for sheet metal fabrication.

    ★ 4.480 ratingsUtilitiesFreeData updated 2026-09-06
  3. Dive Calculator app icon

    Dive Calculator

    Zanthic Automation Inc.

    Calculate stats and manage gas mixtures

    Perform scuba-related calculations for divers of all experience levels. Calculate ATA, SAC/RMV rates, tank volume, and pressure ratings. Convert units as needed. Determine EANx mix, top-up, and bleed-down calculations.

    ★ 4.726 ratingsSportsFreeData updated 2026-09-09
  4. eWaste Calculator app icon

    eWaste Calculator

    Basel Action Network

    Calculate e-waste impact and track recycling benefits

    Calculate environmental impact by inputting e-waste data. Track toxins diverted, critical metals saved, and greenhouse gases avoided. Provide detailed metrics on recycling benefits.

    ★ 4.33 ratingsBusinessFreeData updated 2026-09-09
  5. Planter app icon

    Planter

    Miquido sp. z o.o. sp.k.

    ★ 2.84 ratingsUtilitiesFreeData updated 2026-09-21
  6. Electrical Calc Elite app icon

    Electrical Calc Elite

    Cyberprodigy LLC

    Calculate loads and circuits

    Calculate loads, voltage drops, and conductor sizes according to NEC codes. Verify compliance for residential and commercial projects. Access code references for 2002–2023 editions. Perform wire sizing, panel scheduling, and circuit calculations.

    ★ 4.8126 ratingsUtilities$19.99Data updated 2026-09-08
  7. Roof Calculator: Pitch, Angle app icon

    Roof Calculator: Pitch, Angle

    Phan Nhat Đang

    Calculate area and cost automatically

    Calculate area and cost based on entered dimensions or house size. Input measurements to get automatic estimates. Export results for reference and share with professionals.

    ★ 4.333 ratingsUtilitiesFreeData updated 2026-10-06
  8. Chem_Calculator app icon

    Chem_Calculator

    铠宁 雷

    Calculate molecular weight instantly

    Calculate molecular weights with a dedicated organic chemistry calculator. Long-press elements for details. Input elements, numbers, and parentheses for real-time results. Access a full-sized periodic table with combined periods 1, 2, and 3.

    ★ 4.3155 ratingsEducationFreeData updated 2026-09-13
  9. Ohm & Watt Law Electrical Calc app icon

    Ohm & Watt Law Electrical Calc

    TrothMatrix OPC Private Limited

    Calculate voltage, current, resistance, and power

    Calculate Voltage, Current, Resistance, and Power using Ohm’s Law and ’s Law. Input values to solve for unknowns. Display results instantly. Includes formulas for calculations. Supports both direct and indirect circuit analysis.

    ★ 4.752 ratingsUtilitiesFreeData updated 2026-09-17
  10. Date & Time Interval app icon

    Date & Time Interval

    SACHIN SABU

    Calculate intervals between dates

    Calculate intervals between dates and track exact hours and days. Add or subtract hours using a simple calculator. Determine age with detailed breakdowns. Export results and share directly.

    ★ 4.7116 ratingsProductivityFreeData updated 2026-09-12
  11. Vulcan Materials app icon

    Vulcan Materials

    Vulcan Materials Company

    Calculate material needs for projects

    Estimate construction material quantities for building and paving projects. Input job parameters like length, width, and thickness. Select material properties such as density from predefined options.

    ★ 4.213 ratingsUtilitiesFreeData updated 2026-09-08
  12. Salary Calculator - Pay Check app icon

    Salary Calculator - Pay Check

    An Do

    Calculate hourly wage to annual

    Calculate hourly wage from annual or monthly and vice versa. Input payment frequency like daily, weekly, or monthly. Convert between types and view results instantly.

    ★ 4.662 ratingsUtilitiesFreeData updated 2026-09-17

How we rank alternatives

Apps are ranked by functional similarity, category fit, rating confidence, and popularity.