How this calculator works
No black box - this is the arithmetic the tool runs, written out.
low = linear feet × price_low high = linear feet × price_high
- linear feet
- Total run of gutter, measured along the eaves it will hang from.
- price_low / price_high
- Installed price per linear foot for the gutter material and profile you chose.
Gutters price by the running foot rather than by area. Measure every eave that will carry gutter and add the runs together.
Downspouts, corners, and end caps are usually priced as separate items. A quote that is only a per-foot rate is probably incomplete.
What it looks like with real numbers
Starting from
- Total gutter run
- 180 linear ft
- Material
- Seamless aluminum, $8-$18 per linear ft installed
The working
Low end: 180 × $8 = $1,440High end: 180 × $18 = $3,240
$1,440 - $3,240
Reading it: Gutters price by the running foot, so the number that matters is how many feet of eave you have - not your roof area. Downspouts, corners, and end caps are usually separate line items.
How the calculation runs
Four operations, in this order. Nothing is hidden behind a button.
- Read your total gutter run in linear feet.
- Look up the installed per-foot range for the material chosen.
- Multiply the run by each end of that range.
Every option on this calculator, side by side
The same 2,400 sq ft roof priced against each choice in the gutter material dropdown - so you can compare without changing the selector four times and trying to remember the answers.
| Gutter material | Installed rate | 2,400 sq ft | Spread |
|---|---|---|---|
| Vinyl | $4 - $9 | $9,600 - $21,600 | 125% |
| Seamless aluminum | $8 - $18 | $19,200 - $43,200 | 125% |
| Galvanized steel | $9 - $20 | $21,600 - $48,000 | 122% |
| Copper (premium) | $25 - $45 | $60,000 - $108,000 | 80% |
The spread column is how much the high rate exceeds the low one. A wide spread means installer skill and job complexity swing that option's price a lot - get more quotes on it.
Typical results by size
Vinyl at the rate this page uses, across the sizes most jobs fall into. Find the row nearest yours to sanity-check a quote in seconds.
| Size | linear ft | Estimated range |
|---|---|---|
| Small run (120 ft) | 120 | $480 - $1,080 |
| Average (180 ft) | 180 | $720 - $1,620 |
| Large (240 ft) | 240 | $960 - $2,160 |
| Wraparound (320 ft) | 320 | $1,280 - $2,880 |
Getting your inputs right
The answer is only as good as what goes in. This is where estimates usually go wrong.
Measure the eaves, not the roof
Walk the perimeter and measure only the edges that will actually carry gutter. Gable ends usually do not.
Count downspouts separately
Downspout runs are vertical and priced per unit or per foot on their own. Note how many and roughly how tall.
Note the corners
Inside and outside corners are mitred fittings. A house with a complex outline has more of them, and they cost more than straight run.
Note second-storey runs
Height changes the labor and the equipment. Flag which runs are upstairs when you get quotes.
What changes your number
A calculator applies an average. These are the things that decide where in the range you actually land.
- Seamless versus sectional Seamless gutter is formed on site to the length of the run, so there are no joints along it to fail. Sectional is cheaper and has more seams.
- Material The dropdown spans vinyl through copper, and the spread is wide. Copper is an architectural choice as much as a performance one.
- Gutter size and roof area served A large steep roof dumps a lot of water fast, and standard-size gutter can be undersized for it. Oversized gutter and extra downspouts cost more and prevent overflow.
- Fascia condition Gutters hang on the fascia. If the old gutter leaked, the fascia behind it may be rotten, and that is carpentry before gutter work.
Common mistakes
Every one of these is something people genuinely do, and most of them cost real money.
- Using roof area instead of eave length Gutters are a linear product. Roof square footage tells you nothing about how many feet of gutter you need.
- Too few downspouts Gutter capacity is limited by how fast water can leave it. Long runs with one downspout overflow in heavy rain regardless of gutter size.
- Ignoring where the water goes Downspouts discharging at the foundation move a roof problem into a basement problem. Extensions and drainage matter as much as the gutter.
How gutter cost adds up
Gutters are priced by the linear foot installed. Seamless aluminum is the most popular residential choice; vinyl is cheapest but shorter-lived; copper is the premium look. Downspouts, corners, and gutter guards add to the total. A typical home needs 150-250 linear ft.
Cost ranges reflect 2026 U.S. installed prices (BLS producer/labor data, Remodeling Cost vs. Value, and manufacturer pricing). Your real price depends on your roof, region, and pro - see the full cost guide.
Where this stops being accurate
Per-foot rates assume a straightforward single-storey hang. Second-storey work, steep or fragile landscaping under the eave, and runs that need custom mitred corners all cost more.
This is a free estimating tool, not a quote. When you want a number somebody will stand behind, get matched with local pros - they measure the roof before they price it.
The terms on your quote, explained
A roofing quote is written in trade vocabulary. These are the words that actually change what you are paying for.
- Square
- 100 square feet of roof surface. The unit the entire trade orders, prices, and quotes in - a 2,400 sq ft roof is 24 squares.
- Pitch
- The slope, written as rise over a 12-inch run. A roof climbing 6 inches per 12 horizontal inches is "6/12".
- Decking (sheathing)
- The structural panels over the rafters that everything else fastens to. Its condition is unknown until the old covering is off.
- Underlayment
- The water-resistant layer between decking and covering. Synthetic or felt; it is the roof's second line of defense.
- Ice-and-water shield
- A self-adhering membrane at eaves and valleys that seals around fasteners. Commonly required by code in freeze-thaw climates.
- Flashing
- Metal that seals the joins - around chimneys, walls, valleys and vents. Most roof leaks are flashing failures, not covering failures.
Gutter Calculator questions
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