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
Calculate storage capacity with precise formulas. Input dimensions to determine cistern size. Estimate rainwater collection based on rainfall data. Generate reports for irrigation planning. Export results in PDF format.
Calculate expenses, split bills, and track budgets with a clean interface. Input numbers directly or use pre-set formulas. View detailed breakdowns and export results. Sync data across devices for consistent access.
Manage agricultural sprayer operations with real-time monitoring and maintenance alerts. Track nozzle performance and liquid fertilizer levels. Access technical guides and product specifications for nozzles and sprayer systems.
Calculate cylinder forces and speeds. Determine pump speed, torque, and power using displacement, flow, and pressure. Compute fluid velocity, cross-sectional area, and Reynolds number for lines.
Calculator provides tools to analyze and convert and Civil parameters. Users can calculate critical bending moments for rectangular, open, and nonuniform cross sections. Additional calculators for stress and deflection are available via in- purchase.
Calculate of investments using compounding periods, interest rate, initial amount, and periodic payments. Input parameters to determine FV. View results for financial planning and analysis.
Provides tools to compute parameters like pressure, flow rate, and viscosity. Users can switch between USCS and SI units. Features include calculating buoyant force, hydraulic radius, and density. Supports civil engineering and dynamics calculations.
The app converts weight and volume measures for industrial gases and liquefied natural gas. It accounts for molecular weight and density when converting between liquid and gaseous units.
Calculate dimensions for bends, elbows, cones, and complex shapes. Input measurements and angles to generate precise layouts. Support for triangulation methods and advanced geometric calculations. Export results for fabrication use.
Perform basic arithmetic operations including addition, subtraction, multiplication, and division. Access scientific functions for advanced calculations. Input data directly for quick results. Store and recall previous calculations.
Calculate pitches, angles, and rise/run ratios. Estimate decking, stair, stud wall, and concrete quantities and costs. Switch between US and metric units. Input measurements for precise material estimates. Export results for project planning.
Calculate needs for smart security systems based on video resolution, frame rate, minimum video length, and endurance requirements. Input parameters to determine ideal microSD card capacity.
Plan dives, calculate pressure groups, track surface
Calculate pressure groups and determine minimum surface intervals between dives. Input depth and time for each . View results on a clear display. Sync with PADI tables.
A with smaller size and faster startup. Records full calculations and displays results in real-time. Offers multiple key tones. Includes custom decimal places, display in thousands, unit prompts, date display, and note functionality.