Calculate antenna lengths for dipoles, inverted vee, and vertical antennas in feet/inches or metric. Input frequency and select antenna type to get starting length. View 1/8, 1/4, 1/2, 5/8, and full wave options.
by State Road 41 Apps LLC★ 4.657 ratingsUtilities$0.99Data updated 2026-09-12
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.
& Math Tools • Classic with basic and advanced functions • Financial tools for loan payments and savings planning • Unit conversion for measurements and currencies • Tip calculation and percentage functions • Offline use without internet