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RF Calculators
Conversion Calculators:
A collection of tools for antenna and electrical parameter conversions.
Frequency to Wavelength
Frequency:
Wavelength to Frequency
Free-Space Wavelength:
Reactance to Inductance/Capacitance
Reactance (X) in Ohms:
Frequency in MHz:
Inductance Unit (if X ≥ 0):
Capacitance Unit (if X < 0):
Inductance to Reactance
Inductance (L):
Frequency in MHz:
Capacitance to Reactance
Capacitance (C):
Frequency in MHz:
Power to dBW and dBm
Power:
dBm to Watts
Power in dBm:
VSWR to Reflection Coefficient
VSWR:
Reflection Coefficient to VSWR
Reflection Coefficient (Rho):
Return Loss to VSWR
Return Loss in dB:
American Wire Gauge (AWG) to mm and Inches
Antenna Propagation Calculators:
A set of tools for calculating antenna characteristics and propagation metrics.
Antenna Power Density
Antenna Input Power in Watts:
Antenna Gain in dBi:
Distance to the Antenna in Meters:
Antenna Near – Far Field Boundary
Antenna Maximum Dimension:
Frequency in MHz:
Antenna Downtilt and Coverage
Transmitter Height:
Receiver Height:
Unit for Heights:
Distance between Antennas in km:
Transmitter Beamwidth in degrees:
Line of Sight and Radio Horizon
Transmitter Height:
Receiver Height:
Unit for Heights:
Friis Transmission
Frequency in MHz:
Transmitter Power:
Transmitter Gain in dBi:
Receiver Gain in dBi:
Antenna Separation:
Free Space Path Loss
Frequency in MHz:
Transmitter Gain in dB:
Receiver Gain in dB:
Antenna Separation:
Effective Isotropic Radiated Power (EIRP)
Transmitter Output Power:
Cable and Connector Losses in dB:
Antenna Gain in dBi:
Specific Absorption Rate (SAR)
Electric Field Strength (rms) in V/m:
Conductivity of Material in S/m:
Enter Mass Density in kg/m³:
Skin Depth for Metals
Frequency in MHz:
Material:
Enter Resistivity in Ohm meters (Ω.m):
Antenna Component Calculators
These calculators help design and optimize the components that antennas rely on for efficient operation.
Single-Layer Circular Coil Inductance
Lundin Handbook Formula
Coil Diameter:
Coil Length:
Unit for Diameter and Length:
Number of Turns:
Core Relative Permeability:
Unit for Displaying Inductance:
Inductor Quality Factor (Q)
Frequency:
Inductance:
Internal Resistance in Ohms:
Inductor Internal Resistance
Insertion Loss
Select Calculation Type:
Enter Power (in Watts):
Bifilar Transmission Line
Select Calculation Type:
Enter the following parameters (same unit of length):