Calculate output voltage and power after attenuation
Calculate output voltage, power, and attenuation based on input voltage and dB loss. Specify impedance for accurate results. Convert between Watts, dBm, and dB values. Calculate NMR pulses using reference power and pulse length.
by Tim Burrow★ 5.08 ratingsUtilitiesFreeData updated 2026-09-08
Calculate component values for Op Amp, 555, RC Filter, and Resistor Divider circuits. Decode resistor and capacitor codes. Compute power, resistance, current, and voltage using Ohm's Law and Power Calculators.
Access code updates for 2023 NEC and NEMA standards. View table changes, formulas, and conduit bending guides with video tutorials. Calculate ampacity and conduit fill. Include transformer data and wiring configurations.
Provides tools for and electronics calculations. Users can compute resistance, voltage, current, and power. Includes resistor color code conversion and voltage drop calculations aligned with NEC/IEEE standards. Supports USCS and SI units.
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.
Calculate power, current, and voltage in electrical circuits. Input values to determine unknown quantities. Convert between units. Store frequently used calculations. Share results via email or copy-paste.
Displays cross sections for gamma/x-ray photons, fluorescence, and edge energies. It calculates transmission and attenuation for any energy. Information includes atomic number, mass, density, and energy values.
Perform electrical calculations for contractors, designers, and electricians. Calculate load, voltage drop, conduit fill, and panel sizing. Verify compliance with NEC® codes from 1996 to 2023. Store and retrieve past calculations.
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.
Calculate budget between two locations. Check locations on a map. Compute Fresnel Radius, Earth Bulge, and attenuation loss for O2 and vapour. Determine fade margin. Export results as text or PDF.
Calculate voltage drop for electrical circuits up to 600V. Input custom voltages and system parameters. Output detailed results including conductor size, length, and resistance. Assist in verifying electrical system performance and safety.
Calculate for a specific conductor run or determine wire size based on and current carrying capacity. Limits wire size to and NEC ampacity. Supports AWG and KCMIL sizes only.
The app calculates unknown values in a voltage divider circuit. It allows users to input three known values and solves for the fourth, displaying current and power.