Gutter Calculator
Calculate total gutter length and downspouts needed. Enter roof length, sections, and downspout spacing.
How to Use the Gutter Calculator
- Enter the roof edge length.
- Enter the number of gutter sections.
- Enter the downspout spacing.
- Click Calculate for totals.
快速参考
| 从 | 到 |
|---|---|
| Small roof (6 m) | 6 m gutter, 1 downspout |
| Medium roof (12 m) | 12 m, 2 downspouts |
| Large roof (20 m × 2) | 40 m, 4–6 downspouts |
| Standard gutter | 125 mm half-round |
| Downspout | 75 mm round |
| Spacing max | ~10–12 m |
使用场景
- •Planning a new gutter installation.
- •Replacing existing gutters.
- •Budgeting rainwater drainage.
- •Sizing gutter systems for additions.
公式
Total gutter = Roof length × Sections. Downspouts = ceil(Total gutter / Downspout spacing).
常见问题
How far apart should downspouts be?
Typically every 6–12 meters depending on rainfall and gutter size.
What are sections?
The number of roof edges that need gutters (e.g., 2 for a gable roof).
Is it free?
Yes, all calculators are completely free.