Cell Tower Coverage Calculator
Coverage radius from antenna height, power, and frequency.
Inputs
Results
Coverage radius (km)
10.01
Coverage radius (mi)6.22
Coverage area (km²)315.04
Coverage area (mi²)121.64
EIRP (dBm)58
Max path loss (dB)158
Free-space path loss at edge (dB)118.03
Est. population covered157,518
How to Use This Calculator
- Enter the base station transmit power in dBm and the antenna gain in dBi.
- Enter the antenna height above ground in meters and the operating frequency in MHz.
- Enter the receiver sensitivity in dBm (the minimum signal level the mobile device can decode).
- Select the environment type: dense urban, suburban, or rural/open.
- Review the Coverage Radius (km/mi) and Coverage Area (km²/mi²) outputs, along with EIRP, Max Path Loss, Free-Space Path Loss at Edge, and Estimated Population Covered.
How the result changes with Receiver sensitivity (dBm)
| Receiver sensitivity (dBm) | Coverage radius (km) |
|---|---|
| -122 | 42.19 |
| -102 | 11.41 |
| -78 | 2.38 |
| -58 | 0.64 |
What each input means
- Transmit power (dBm)
- Base station transmit power in dBm. Typical macro cell: 43-46 dBm (20-40W).
- Antenna gain (dBi)
- Directional antenna gain. Typical panel antenna: 12-18 dBi.
- Antenna height (m)
- Height of the antenna above ground level in meters.
- Frequency (MHz)
- Operating frequency in MHz. Lower = farther range. Common: 700, 850, 1900, 2100, 3500 MHz.
- Receiver sensitivity (dBm)
- Minimum signal level the mobile device can decode. Typical: -95 to -105 dBm.
- Environment Type
- Select environment type affecting propagation loss
What each result means
- Coverage radius (km)
- Maximum coverage distance using Okumura-Hata model.
- Coverage radius (mi)
- Coverage radius in miles.
- Coverage area (km²)
- Circular coverage area in square kilometers.
- Coverage area (mi²)
- Circular coverage area in square miles.
- EIRP (dBm)
- Effective Isotropic Radiated Power = TX power + antenna gain.
- Max path loss (dB)
- Maximum allowable propagation loss (EIRP - receiver sensitivity).
- Free-space path loss at edge (dB)
- Theoretical free-space loss at the coverage edge for comparison.
- Est. population covered
- Rough population estimate based on environment type density.
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersTransmit power (dBm) = 43, Antenna gain (dBi) = 15, Antenna height (m) = 30, Frequency (MHz) = 1900 = 6 input(s) provided
- Calculate Coverage radiusCoverage radius = max(0.1, pow(10, logD))10.01 = 10.01
- Calculate Coverage radiusCoverage radius = coverageRadiusKm * 0.6213716.22 = 6.22
- Calculate Coverage areaCoverage area = π * coverageRadiusKm * coverageRadiusKm315.04 = 315.04
Engine last updated . Checked against 2 independently-derived tests — how we verify calculators.
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