Cheapest by length
| Length | Amazon, per cable | eBay, per cable |
|---|---|---|
| 6 ft | $5.99 | $4.45 |
| 8 ft | $12.99 | $4.50 (4-pack, $18.00) |
| 10 ft | $6.99 | — |
| 12 ft | — | $6.99 |
| 15 ft | — | $8.79 |
| 20 ft | $8.99 | $13.49 |
| 25 ft | $11.99 | $17.99 |
| 35 ft | — | $19.99 |
| 40 ft | $16.99 | — |
| 50 ft | $19.44 | $29.99 |
| 100 ft | — | $46.98 |
| 200 ft | — | $88.39 |
Length is rounded to the nearest standard size. Per-cable price = listing price ÷ cables in the pack (eBay includes shipping).
Cheapest by wire gauge (AWG)
| Wire gauge (AWG) | Amazon, per ft | eBay, per ft |
|---|---|---|
| 12 | $1.00 ($49.99 for 50 ft) | — |
| 14 | — | $0.54 ($109 for 200 ft) |
| 16 | $0.42 ($16.99 for 40 ft) | $0.50 ($14.95 for 30 ft) |
All 35 listings, cheapest per ft first
| Item | Size | Price | Per ft | ||
|---|---|---|---|---|---|
| Amazon Basics 50-Foot 3-Prong Indoor/Outdoor Extension Cord, Heavy-Duty, 13 Amps, 1625 Watts, 125 VAC, Orange 50 ft | 50 ft | $19.44 | $0.39 | Amazon → | |
| Amazon Basics 50-Foot 3-Prong Indoor/Outdoor Extension Cord, Heavy-Duty, 13 Amps, 1625 Watts, 125 VAC, Green 50 ft | 50 ft | $19.44 | $0.39 | Amazon → | |
| GE Outdoor Extension Cord, 40 Ft, Grounded Heavy Duty Extension Cord, 16AWG 40 ft | 40 ft | $16.99 | $0.42 | Amazon → | |
 | 200ft Outdoor/Indoor Extension Cord 14/3 Gauge Heavy Duty 3 Prong SJTW 200 ft | 200 ft | $88.39 | $0.44 | eBay → |
| Amazon Basics Extension Cord, 20 Ft, 3 Prong Outlet Extender, Indoor, 13 Amps, 125V, 16 AWG, Black 20 ft | 20 ft | $8.99 | $0.45 | Amazon → | |
 | Total Home 3-Outlet Indoor Extension Cord 6.5 Ft White Lot of 6 39 ft | 39 ft | $18.00 | $0.46 | eBay → |
 | 3 Pack 25 Ft Indoor Extension Cord 16/3 AWG 3 Prong 3 Outlet White New 75 ft | 75 ft | $34.99 | $0.47 | eBay → |
 | Black Outdoor Extension Cord 100 FT Waterproof Flexible 16/3 Gauge Power Cord 100 ft | 100 ft | $46.98 | $0.47 | eBay → |
| TiFFCOFiO Indoor Outdoor Extension Cord Waterproof, 25 Feet 3 Prong Power Cord for Home and Garden, 16 AWG, 13A/1625W, … 25 ft | 25 ft | $11.99 | $0.48 | Amazon → | |
 | Set Of 2: HDX 15 Ft 16 Gauge Indoor/Outdoor Extension Cords (Black) 30 ft | 30 ft | $14.95 | $0.50 | eBay → |
 | CP (2-Pack) 15ft 16/2 SPT-2 3-Outlet Indoor Extension Cord White, CP10034X2 30 ft | 30 ft | $14.99 | $0.50 | eBay → |
| HUANCHAIN Indoor Outdoor Black Extension Cord 50 FT Waterproof 16/3 Gauge 50 ft | 50 ft | $24.99 | $0.50 | Amazon → | |
 | 9 Ft Brown Extension Cords with 3 Electrical Power Outlets, 4 Pack 36 ft | 36 ft | $18.00 | $0.50 | eBay → |
 | 50 Ft Extension Cord 14 Gauge 3 Prong Plug 3 Prong Outlet *LOT OF 4* 200 ft | 200 ft | $109 | $0.54 | eBay → |
 | CP 100 ft 14/3 SJEOW, TPE Rubber Heavy Duty Extension Cord, Blue/Orange, CP10089 100 ft | 100 ft | $56.99 | $0.57 | eBay → |
 | CP Green Extension Cord 35 ft 16/3 SJTW 3-Outlet Holiday Outdoor Garden CP10194 35 ft | 35 ft | $19.99 | $0.57 | eBay → |
 | 100ft Outdoor/Indoor Extension Cord 14/3 Gauge Heavy Duty 3Prong SJTW Waterproof 100 ft | 100 ft | $57.82 | $0.58 | eBay → |
 | 12 ft. 16/2 Cube Tap Extension Cord White 12 ft | 12 ft | $6.99 | $0.58 | eBay → |
 | 2 Pack 12 ft White Extension Cord with 3 Outlets - 16 AWG 2 Prong Indoor Cord 24 ft | 24 ft | $13.98 | $0.58 | eBay → |
 | 15 Ft. 16/2 SPT-2 Multi-Outlet (3) Indoor Light-Duty Extension Cord with Safety 15 ft | 15 ft | $8.79 | $0.59 | eBay → |
 | 12 ft. 16/2 Light Duty Indoor Multi-Outlet Extension Cord White 12 ft | 12 ft | $7.06 | $0.59 | eBay → |
 | Prime 50ft Extension Cord 14 Gauge AWG 14/3 SJTOW Outdoor Heavy Duty 50 ft | 50 ft | $29.99 | $0.60 | eBay → |
 | NEW 12 ft Indoor Extension Cord 16 Gauge 3 Outlet Multi Plug for Home Office Use 12 ft | 12 ft | $7.36 | $0.61 | eBay → |
 | Total Home Single Outlet Grounded 8 Foot Extension Cord Orange Lot of 10 80 ft | 80 ft | $49.99 | $0.62 | eBay → |
 | 2 Pack 25 ft White Extension Cord with 3 Outlets - 16/2 SJTW 2 Prong Indoor Cord 50 ft | 50 ft | $32.99 | $0.66 | eBay → |
 | 2 Pack Philips 15 Foot Indoor Outdoor Green Extension Cord 3 Prong 3 Outlet 30 ft | 30 ft | $19.99 | $0.67 | eBay → |
 | Amazon Basics 20 Ft Indoor Extension Cord 13A 125V 16 AWG Black 3-Prong Outlet 20 ft | 20 ft | $13.49 | $0.67 | eBay → |
| Amazon Basics Extension Cord, 10 Ft, 3-Prong Outlet Extender, Indoor Use, 13 Amps, 125V, White 10 ft | 10 ft | $6.99 | $0.70 | Amazon → | |
 | Extension Cord 6,12,20 or 25 FOOT 13 Amp 3 Way Cube Tap White 25 ft | 25 ft | $17.99 | $0.72 | eBay → |
 | CP 15 ft (2-Pack ) Indoor/Outdoor Extension Cord 16/3 SJTW, White, CP10206X2 30 ft | 30 ft | $21.99 | $0.73 | eBay → |
 | 6 ft. 16/2 Light Duty Indoor Multi-Outlet Extension Cord, White 6 ft | 6 ft | $4.45 | $0.74 | eBay → |
 | Thonapa Weatherproof Green Extension Cord 50 ft 3 Outlets, 16/3 SJTW Outdoor Ext 50 ft | 50 ft | $37.99 | $0.76 | eBay → |
| Amazon Basics Extension Cord, 3 Prong Outlet Extender, Indoor Power Cord, 13 Amps, 125V, 6 Ft, Black 6 ft | 6 ft | $5.99 | $1.00 | Amazon → | |
| POWGRN 50 ft 12/3 Outdoor Extension Cord Waterproof Heavy Duty with Lighted Indicator End 12 Gauge 3 Prong, Flexible Co… 50 ft | 50 ft | $49.99 | $1.00 | Amazon → | |
| GE 3-Outlet Flat Plug Extension Cord 8 Ft Grounded Extension Cord 8 ft | 8 ft | $12.99 | $1.62 | Amazon → |
Amazon per ft, by day
typical cheapest, per ft
eBay per ft, by day
typical cheapest, per ft
Amazon as of 2026-11-06 11:52:16 UTC: Amazon's own price, else its lowest new offer, before shipping and tax (via Keepa); product prices and availability are accurate as of the date/time indicated and are subject to change. eBay: new Buy It Now listings from US sellers as of 2026-11-06 UTC, item plus shipping.
Size comes from the seller's unit count or the listing title; check the listing before buying. As an Amazon Associate and eBay Partner, Sharpest earns from qualifying purchases.
Alert me when extension cord hit my price per ft
We check Amazon and eBay several times a day and email you when any listing is at or under your price. One email per new low, unsubscribe in one click.
By continuing you agree to our Terms and Privacy Policy.
More cables
Coaxial cable $0.14/ftDisplayPort cable $0.68/ftLightning cable $0.71/ftUSB-C wall charger $2.79/chargerUSB-C to USB-C cable $0.21/ftUSB-C to USB-A cable $0.28/ftHDMI cable $0.35/ftMicro USB cable $0.30/ftThunderbolt 4 cable $1.83/ft3.5mm aux cable $0.49/ftCat6 bulk Ethernet cable $0.067/ftCat6 Ethernet patch cable $0.27/ft