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Matthew Miller
Calculate length with a tap
Calculate lengths for 1/4 Wave ground plane, 5/8 Wave Verticals, Dipole, and Inverted Vee types. Input desired TX or RX frequency to determine resonant wire length. Adjust for close resonance without an ATU.
Verosocial Studio
Calculate locations and dimensions
Calculate Maidenhead locations and HF dimensions. Input frequency and select elements to determine reflector, driven element, director, and spacing sizes in feet, inches, and meters. Convert area measurements between square inches and square feet.
V PUGAZHENTHI
Calculate voltage, current, and resistance
Calculate values using voltage, current, resistance, and power formulas. Access single and three phase calculators, horsepower tools, and unit converters. Unlock additional features with an in- purchase.
V PUGAZHENTHI
Calculate based on voltage, current, distance,
Calculate based on voltage, current, distance, and voltage drop. Select units like AWG, mm, or inches. Choose material: copper, aluminum, or electrical steel. Ensure safe electrical installations for low voltage DC systems and residential AC wiring.
Sergey Vavaev
Access theory, diagrams, and calculators offline
’s provides access to electrical theory topics, including exercises with answers. Features interactive diagrams for hands-on learning. Includes calculators and formulas for electrical calculations. Works offline without ads or subscriptions.
Nelcea
AWG to metric and imperial units
Wire diameters from American Wire Gauge (AWG) to metric and imperial units. Calculate cross-sectional area. Export results as text or image.
Generally Helpful Software
Find TV and repeaters
Locate TV broadcasting and repeaters across the U.S. and its territories. Find available networks for antenna setup or while traveling. Use compass on Apple Watch to navigate to with an in- purchase.
Copeland LP
Access product specs and details anytime
Access product specifications for air conditioning and refrigeration equipment. Search by model number, view detailed technical data, and download documentation. Login with existing OPI credentials or create a new account.
Calculated Industries, Inc.
Browse boating charts and images
Access boating information with detailed charts, graphs, and illustrations. Look up formulas, safety guidelines, and equipment specifications. Search for content by topic or use the table of contents. View 800+ images and diagrams for visual .
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