Landscape Lighting Calculator — Plan Your Outdoor Lighting

Landscape Lighting Calculator

Calculate landscape lighting requirements for pathways, gardens, decks, and outdoor spaces. Determine fixtures, wattage, energy costs, and illumination levels for your project.

Step 1: Area & Lighting Type

Lighting Guidelines

Pathways: 8-10 ft spacing • Gardens: 6-8 ft spacing • Decks: 4-6 ft spacing • Security: 10-15 ft spacing. LED fixtures use 75-85% less energy than halogen/incandescent.

Step 2: Power & Usage

Energy Savings Tips

LED Fixtures: Last 25,000+ hours vs 2,000 for halogen
Motion Sensors: Can reduce usage by 70%
Solar Options: Zero operating costs after installation
Timers/Dimmers: Reduce unnecessary usage

Landscape Lighting Results

Lighting Summary
Fixture Comparison
Cost Analysis

Recommended Fixtures

15 fixtures
Coverage: 30 ft × 20 ft area
Total Wattage
150 W
Monthly Energy Cost
$4.05
Annual Energy Cost
$48.60
Transformer Needed
200 W

Fixture Type Comparison

Fixture Type Avg Wattage Life Span Energy Cost/Year Initial Cost

5-Year Cost Analysis

LED Lighting

Initial Cost: $450 (15 fixtures × $30)
5-Year Energy Cost: $243
5-Year Maintenance: $0 (no bulb replacements)
Total 5-Year Cost: $693

Halogen Lighting

Initial Cost: $300 (15 fixtures × $20)
5-Year Energy Cost: $1,215
5-Year Maintenance: $225 (3 bulb replacements)
Total 5-Year Cost: $1,740

Solar Lighting

Initial Cost: $525 (15 fixtures × $35)
5-Year Energy Cost: $0
5-Year Maintenance: $150 (battery replacements)
Total 5-Year Cost: $675

Key Insight

LED lighting typically pays for itself in energy savings within 2-3 years compared to halogen. Solar has higher upfront costs but zero energy bills. Always consider total cost of ownership, not just purchase price.

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