The price of an extension cord typically ranges from $5 to $80, with most household cords costing $10 to $35. Length, wire gauge, indoor or outdoor rating, and features such as a reel or multiple outlets drive the price; specialty and heavy-duty cords can cost more.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Indoor household cord | $5 | $12 | $25 | 16/2 or 16/3, usually 6-25 ft |
| Outdoor general-use cord | $10 | $25 | $55 | Jacket rated for outdoor use, often 25-50 ft |
| Heavy-duty 12/3 cord | $20 | $45 | $100 | Commonly 25-100 ft; price varies by jacket and brand |
| Reel or multi-outlet cord | $20 | $45 | $120 | Added outlets, reel, or power features raise price |
What a household extension cord typically costs
A basic 6- to 25-foot indoor cord generally costs $5-$20. A 25- to 50-foot outdoor cord commonly runs $15-$45, while a 100-foot outdoor model can cost $35-$90 depending on gauge and construction. Heavy-duty cords for tools or higher electrical loads are often $25-$100.
For ordinary household use, expect about $10-$35 for a dependable cord, not including unusual specialty features. These ranges cover common retail products before sales tax. Assumptions: U.S. retail pricing, standard products, and no custom wiring or installation.
Plug, copper wire, and jacket components behind the price
Extension cords are usually sold as finished products, so the price reflects conductor size and length, plug construction, insulation, testing, and retail markup. A longer cable uses more wire and jacket material; heavier-gauge wire costs more per foot but can be appropriate for equipment drawing more current.
| Price component | Typical price impact | What changes it | Common example |
|---|---|---|---|
| Indoor cord and plugs | $5-$25 total | Length, gauge, outlet count | 16/3, 25 ft, $10-$20 |
| Outdoor jacket and plugs | $10-$55 total | Weather-resistant construction | 14/3, 50 ft, $25-$45 |
| Heavy-duty conductors | $20-$100 total | 12-gauge wire and length | 12/3, 50 ft, $35-$65 |
| Reel or power features | $10-$70 added | Reel, multiple outlets, breaker | 25-50 ft reel, $30-$80 |
Gauge and jacket rating are functional specifications, not just price upgrades. A cheaper cord may be unsuitable if it is too light-duty, too short, or not rated for the location.
How length, gauge, and outdoor rating change the shelf price
Length creates a visible price jump: a basic 25-foot cord may cost $8-$20, compared with $20-$50 for 50 feet and $35-$90 for 100 feet. Similar cords do not always scale evenly because thicker wire, brand, and construction affect the total.
Gauge is another key threshold. A 16-gauge cord is common for light household loads, while 14-gauge models are often selected for moderate loads and longer runs. A 12-gauge cord is heavier duty and frequently costs $30-$100 at 25-100 feet. Follow the appliance or tool instructions; voltage drop and overheating risk increase when an undersized cord is used over a long distance.
Outdoor use requires an outdoor-rated cord, and cold-weather or rugged jackets can add roughly 10%-40% over a comparable basic model. Look for the product’s stated rating rather than assuming a thick-looking jacket is weatherproof. Assumptions: Prices compare broadly similar lengths; gauge, ratings, and brands vary.
Does a 100-foot outdoor cord cost more than indoor cord?
Usually. A 100-foot indoor cord may cost about $25-$60, while an outdoor-rated 100-foot cord commonly falls around $35-$90. A 12/3 outdoor cord can reach $60-$120, especially with a cold-resistant jacket or reinforced plugs. Prices also differ by seller and product quality.
Compare cords with the same length, gauge, and rating before treating a lower sticker price as a better deal. Indoor-only cords are not a safe substitute for outdoor-rated products in exposed conditions, and a longer cord is not automatically suitable for every tool or appliance.
When a 12/3 heavy-duty cord earns its higher price
A 12/3 cord may cost $25-$55 at 25 feet, $35-$75 at 50 feet, and $60-$120 at 100 feet. It can make sense for compatible power tools or equipment with higher current needs, particularly when a longer run is unavoidable. The product’s rated amperage and the equipment manufacturer’s requirements should guide selection.
A 16/3 cord can cost less—often $8-$25 for common lengths—but is intended for lighter loads. Choosing the cheapest gauge for a demanding tool can create a safety concern, while buying 12-gauge wire for a small lamp may be unnecessary. Match cord capacity to the device and run length instead of buying by price alone.
What reels, extra outlets, and replacement add to the bill
A basic cord is usually the lowest-cost option. A multi-outlet cord can add $5-$20; a cord reel commonly adds $15-$50 over a comparable loose cord. Heavy-duty retractable reels or models with built-in circuit protection may cost $50-$150 or more, depending on capacity and length.
Check whether a reel includes the full cord length and the same gauge as a loose cord under comparison. A damaged plug, split jacket, exposed conductor, or heat damage generally calls for replacement rather than patching with tape. Replace unsafe cords promptly; the purchase is usually less expensive than risking damage or injury.
Why extension cord prices vary between stores and seasons
Large retailers and online sellers may price common cords about 5%-20% below smaller hardware stores during promotions, though shipping can erase savings on bulky reels. Local prices can also differ by roughly 10%-25% in remote areas or where selection is limited. These are useful comparison ranges, not fixed regional rules.
Demand often rises before summer outdoor projects and during holiday lighting season. Promotions can bring basic cords down by several dollars, but premium outdoor and heavy-duty models may not discount as deeply. Compare the final price, including delivery and tax, against an identical gauge, length, and safety rating.
How to spend less without choosing an undersized cord
Measure the actual route before buying. Purchasing a 50-foot cord when 25 feet reaches safely can avoid paying an extra $10-$30, and buying multiple cords for one continuous run may create connection and voltage-drop issues. Select the shortest practical length that meets the manufacturer’s specifications.
Skip reels, extra outlets, and premium jackets unless the work requires them. For occasional indoor use, a basic listed cord may be enough; for outdoor work or power tools, keep the required rating and gauge in the comparison. Check sales across a few sellers and compare unit pricing, such as $0.40-$1.00 per foot for many ordinary cords and $0.60-$1.50 per foot for heavier models. The safest savings come from avoiding unnecessary length and features, not reducing the cord’s required capacity.