Landscape Lighting Wire Gauge Calculator
Light More, Pay Less — find the correct wire size (AWG) for your Low Voltage landscape lighting. Enter watts and distance to calculate voltage drop and recommended cable.
Calculator
Low Voltage Wire Size & Voltage Drop
Choose 15% for practical installs, or 10% for premium brightness.
Best Practices for Choosing Landscape Lighting Cable
- Use the next thicker wire if your run is close to the voltage drop limit.
- Split loads across multiple runs to reduce drop.
- Use direct-burial copper cable for underground installs.
- Consider multi-tap transformers (13–15V) to offset drop on long runs.