Free Space Path Loss Calculator
Calculate Free Space Path Loss (FSPL) instantly for any frequency and distance. Learn the FSPL formula, how it works, and how to use it for RF planning. Includes advanced link budget options.
February 9, 2026
PCB Tools
The ultimate all-in-one PCB tools and calculator hub. Access professional-grade utilities for circuit design, RF engineering, impedance matching, and manufacturing analysis. From basic Ohm’s Law to complex microwave propagation, get precise engineering results to optimize your hardware projects.
Link Budget Calculator
Calculate received power and link margin with our interactive link budget tool. Account for Tx/Rx power, antenna gains, and free-space path loss (FSPL) in dB.
February 9, 2026
Fresnel Zone Calculator
Calculate Fresnel zone radius and clearance height with our free online tool. Ensure optimal wireless signal strength by avoiding obstructions in your RF path.
February 9, 2026
dBm to Watt Converter
Convert dBm to Watts instantly with our free online calculator. Learn the formula, see practical examples, and use our handy conversion table. Perfect for RF and network engineering.
February 9, 2026
Friis Transmission Calculator
Calculate received power, distance, and antenna gain with our Friis Transmission Calculator. Includes free-space path loss and logarithmic formulas for RF design.
February 9, 2026
Line of Sight Calculator
Calculate radio horizon and assess signal path clearance for wireless links. This tool helps engineers, technicians, and RF planners determine if a direct line of sight exists, accounting for Earth’s curvature and atmospheric refraction.
February 9, 2026
Coaxial Cable Impedance Calculator
Use this tool to calculate the characteristic impedance of a coaxial cable from its physical dimensions. Learn the formula, standard values, and the importance of impedance matching.
February 9, 2026
Signal-to-Noise Ratio (SNR) Calculator
Use this powerful, interactive calculator to measure the Signal-to-Noise Ratio (SNR) of your data. Whether you’re in audio, imaging, or communications, understand what your SNR means and how to improve it.
February 9, 2026
Transformer Impedance Calculator
Calculate transformer percentage impedance (%Z), ohmic impedance, and fault current. Includes typical values, formulas, and step-by-step calculation guides.
February 9, 2026
Short-Circuit Current Calculator
Calculate the available short-circuit current at any point in your electrical system to ensure safety, select the correct equipment, and maintain compliance.
February 9, 2026