Solar Panel Tilt Angle Calculator
Find the optimal fixed, seasonal, and month-by-month tilt angle for your latitude.
Year-Round Optimal Tilt
40.0°
13.5°
Summer-Optimized
65.0°
Winter-Optimized
Due South
Face Panel
Year-round tilt equals your latitude. Summer tilt (latitude × 0.9 − 23.5°) favors long high-sun days; winter tilt (latitude × 0.9 + 29°) favors low winter sun. Adjust twice a year to capture both.
Side view of the year-round tilt angle (illustrative, not to scale)
Month-by-Month Optimal Tilt
| Month | Optimal Tilt |
|---|
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