Disclaimer: This is only an estimation! Take the result with a grain of salt.
This calculator assumes perfect conditions. However, many factors can affect FPV range, so you are likely going to experience less range in real-life scenarios.
See this post about what dB is and how it affects FPV range.
FPV Range Calculator
Last updated 04 April 2024
| Frequency | MHz |
|---|---|
| VTX Power | dBm |
| VTX Antenna Gain | dBi |
| VTX Antenna SWR Signal Loss | dB |
| VTX Antenna Efficiency | % |
| VRX Antenna Gain | dBi |
| VRX Sensitivity | dBm |
| Link Margin | dB |
| Other Losses | dB |
| . | |
| . | |
| Distance | Km |
VTX Power mW to dB Look Up Table
| mW | dBm |
| 1 | 0 |
| 10 | 10 |
| 25 | 13.98 |
| 50 | 16.99 |
| 100 | 20 |
| 200 | 23.01 |
| 300 | 24.77 |
| 400 | 26.02 |
| 500 | 26.99 |
| 600 | 27.78 |
| 800 | 29.03 |
| 1000 (1W) | 30 |
| 1500 (1.5W) | 31.76 |
| 2000 (2W) | 33.01 |
Antenna SWR VS Power Loss Table
| SWR | THRU. POWER | REFL. POWER | SIGNAL LOSS (dB) |
|---|---|---|---|
| 1.0 | 100.0% | 0.0% | 0.00 |
| 1.1 | 99.8% | 0.2% | 0.01 |
| 1.2 | 99.2% | 0.8% | 0.04 |
| 1.3 | 98.3% | 1.7% | 0.07 |
| 1.4 | 97.2% | 2.8% | 0.12 |
| 1.5 | 96.0% | 4.0% | 0.18 |
| 1.6 | 94.7% | 5.3% | 0.24 |
| 1.7 | 93.3% | 6.7% | 0.30 |
| 1.8 | 91.8% | 8.2% | 0.37 |
| 1.9 | 90.4% | 9.6% | 0.44 |
| 2.0 | 88.9% | 11.1% | 0.51 |
| 2.1 | 87.4% | 12.6% | 0.58 |
| 2.2 | 85.9% | 14.1% | 0.66 |
| 2.3 | 84.5% | 15.5% | 0.73 |
| 2.4 | 83.0% | 17.0% | 0.81 |
| 2.5 | 81.6% | 18.4% | 0.88 |
| 2.6 | 80.3% | 19.7% | 0.96 |
| 2.7 | 78.9% | 21.1% | 1.03 |
| 2.8 | 77.6% | 22.4% | 1.10 |
| 2.9 | 76.3% | 23.7% | 1.18 |
| 3.0 | 75.0% | 25.0% | 1.25 |
| 3.2 | 72.6% | 27.4% | 1.39 |
| 3.4 | 70.3% | 29.7% | 1.53 |
| 3.6 | 68.1% | 31.9% | 1.67 |
| 3.8 | 66.0% | 34.0% | 1.81 |
| 4.0 | 64.0% | 36.0% | 1.94 |
| 4.2 | 62.1% | 37.9% | 2.07 |
| 4.4 | 60.3% | 39.7% | 2.19 |
| 4.6 | 58.7% | 41.3% | 2.32 |
| 4.8 | 57.1% | 42.9% | 2.44 |
| 5.0 | 55.6% | 44.4% | 2.55 |
| 6.0 | 49.0% | 51.0% | 3.10 |
| 7.0 | 43.8% | 56.3% | 3.59 |
| 8.0 | 39.5% | 60.5% | 4.03 |
| 9.0 | 36.0% | 64.0% | 4.44 |
| 10.0 | 33.1% | 66.9% | 4.81 |
| 20.0 | 18.1% | 81.9% | 7.42 |
| 30.0 | 12.5% | 87.5% | 9.04 |
| 50.0 | 7.7% | 92.3% | 11.14 |
| 100.0 | 3.9% | 96.1% | 14.07 |