FForge Tools
ToolsAbout
← All tools

Tool category

RF tools

Radio-frequency tools for wavelength, antenna dimensions and power conversion.

6 tools

Available calculators

Frequency & Wavelength Calculator

Convert frequency, wavelength and common wave fractions.

→

dBm ↔ Watts Converter

Convert RF power between dBm, milliwatts, watts and kilowatts.

→

Quarter-Wave Antenna Calculator

Calculate theoretical antenna lengths from RF frequency.

→

Free Space Path Loss Calculator

Calculate ideal RF path loss from frequency and distance.

→

VSWR ↔ Return Loss Calculator

Convert VSWR, return loss, reflection coefficient and mismatch loss.

→

Fresnel Zone Calculator

Calculate first-zone radius and RF path-clearance guidance.

→

Common workflows

Point-to-point path checks

Estimate ideal path loss, clearance and received-power inputs for a radio link.

Frequency & Wavelength Calculator →Free Space Path Loss Calculator →Fresnel Zone Calculator →dBm ↔ Watts Converter →

Antenna dimensions and matching

Find a starting element length, then interpret matching and reflected-power results.

Quarter-Wave Antenna Calculator →VSWR ↔ Return Loss Calculator →dBm ↔ Watts Converter →
© 2026 Forge Tools
AboutPrivacyCookiesContact