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Calcimator

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
  1. Enter the base station transmit power in dBm and the antenna gain in dBi.
  2. Enter the antenna height above ground in meters and the operating frequency in MHz.
  3. Enter the receiver sensitivity in dBm (the minimum signal level the mobile device can decode).
  4. Select the environment type: dense urban, suburban, or rural/open.
  5. 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)
-12242.19
-10211.41
-782.38
-580.64

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

  1. Identify Input Parameters
    4 parameters
    Transmit power (dBm) = 43, Antenna gain (dBi) = 15, Antenna height (m) = 30, Frequency (MHz) = 1900 = 6 input(s) provided
  2. Calculate Coverage radius
    Coverage radius = max(0.1, pow(10, logD))
    10.01 = 10.01
  3. Calculate Coverage radius
    Coverage radius = coverageRadiusKm * 0.621371
    6.22 = 6.22
  4. Calculate Coverage area
    Coverage area = π * coverageRadiusKm * coverageRadiusKm
    315.04 = 315.04

Engine last updated . Checked against 2 independently-derived tests how we verify calculators.

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