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Single-spool filament, ranked by £/kg — on offer now, page 10

One spool per listing, with bundles and multipacks left out. Bundles take the top of any ranking by cost per kilogram, so this is the list to use when you want the cheapest single spool: to try a brand, to match a colour, or for a first order. Pick a weight below to compare like with like.

665 currently discounted.

Product	Material	Weight	Rating	Price	Per kg	Deal
kexcelled TPU 95A Filament 1.75mm 1kg, Flexible and Soft, Yellow	TPU	1 kg	★★★★½ 4.5 out of 5 (74 Amazon ratings)	£36.65	£36.65	—
iSANGHU PETG 3D Printer Filament, 1.75mm, Multicolor Changing 3D Printing Fila	PETG	1 kg	★★★★★ 4.9 out of 5 (16 Amazon ratings)	£36.66	£36.66	—
LOVOON 3D PLA Filament Color Changing Glitter, Shining 1.75mm PLA Filament, Di	PLA	1.18 kg	★★★★½ 4.5 out of 5 (1,390 Amazon ratings)	£43.39	£36.80	—
SainSmart 1.75mm Black ePA-CF Carbon Fiber Filled Nylon Filament 1KG (2.2lbs)	Nylon	1 kg	★★★★½ 4.3 out of 5 (567 Amazon ratings)	£36.99	£36.99	8% below
eSUN PLA Basic Refill Filament Brown 1.75mm 1KG 3D Printer Filament No Spool P	PLA	1 kg	★★★★½ 4.4 out of 5 (74 Amazon ratings)	£37.00	£37.00	—
Bambu Lab PETG Translucent Filament 1.75mm 1kg Spool - Strong Durable 3D Print	PETG	1 kg	★★★★½ 4.3 out of 5 (38 Amazon ratings)	£37.10	£37.10	5% below
TECSONAR TECSONAR Matte Rainbow PLA 3D Printer Filament, 1KG Spool(2.2lbs) 1.7	PLA	1 kg	★★★★☆ 4.2 out of 5 (26 Amazon ratings)	£37.22	£37.22	5% below
TECSONAR Silk Rainbow PLA 3D Printer Filament, 1KG Spool(2.2lbs) 1.75mm PLA Fa	PLA	1 kg	★★★★★ 5.0 out of 5 (3 Amazon ratings)	£37.39	£37.39	6% below
eSUN Silk PLA 3D Printer Filament 1.75mm Black Gold Dual Color Shiny Silky Fil	PLA	1 kg	★★★★½ 4.6 out of 5 (47 Amazon ratings)	£37.43	£37.43	7% below
PCTG 3D Printing Filament 1.75mm, 1KG Spool PCTG Basic Filament Highly Transpa	PCTG	1 kg	★★★★☆ 4.1 out of 5 (19 Amazon ratings)	£37.57	£37.57	—
eSUN Silk PLA 3D Printer Filament 1.75mm Red Gold Dual Color Shiny Silky Filam	PLA	1 kg	★★★★½ 4.6 out of 5 (47 Amazon ratings)	£37.60	£37.60	5% below
kexcelled TPU 64D Filament 1.75mm, High Hardness & Wear Resistance, 1kg Roll,	TPU	1 kg	—	£37.61	£37.61	—
Siraya Tech Fibreheart PPA-GF 3D Printer Filament, 15% Glass Fiber Reinforced	Nylon	1 kg	★★★★★ 4.8 out of 5 (6 Amazon ratings)	£37.61	£37.61	41% below
Matte PLA Filament with Quick-Swap Reusable Spool 1kg (2.2lbs), 1.75mm 3D Prin	PLA	1 kg	★★★★★ 5.0 out of 5 (4 Amazon ratings)	£37.63	£37.63	—
Polymaker PolyLite LW-PLA - 1.75mm - 800g - White	PLA	0.8 kg	★★★★☆ 4.2 out of 5 (309 Amazon ratings)	£30.14	£37.68	8% below
Creality Hyper PLA-CF Carbon Fiber 3D Printer Filament 1.75mm Black 1KG, High-	PLA-CF	1 kg	★★★★★ 4.9 out of 5 (18 Amazon ratings)	£37.75	£37.75	—
Kretrum PLA 3D Printer Filament, 3D Printing Filament, Red PLA Filament 1.75mm	PLA	1 kg	★★★★½ 4.3 out of 5 (21 Amazon ratings)	£37.93	£37.93	—
extrudr® PETG Diameter 1.75 mm (1.1 kg) 'Transparent red' - 3D Printer Filamen	PETG	1.1 kg	★★★★★ 5.0 out of 5 (1 Amazon ratings)	£41.82	£38.02	5% below
AMOLEN PLA 3D Printer Filament, 1.75mm Silk Shiny Red Gold Gradient Filament,	PLA	1 kg	★★★★☆ 4.2 out of 5 (1,334 Amazon ratings)	£38.27	£38.27	9% below
eSUN Matte PLA Filament Strawberry Red 3D Printing PLA Filament 1.75mm Dimensi	PLA	1 kg	★★★☆☆ 3.0 out of 5 (2 Amazon ratings)	£38.27	£38.27	—
Bambu Lab PLA 3D Printer Filament 1.75mm RFID 1kg, Black Refill	PLA	1 kg	★★★★☆ 4.0 out of 5 (56 Amazon ratings)	£38.56	£38.56	9% below
colorFabb AllPHA White 3D Print Filament,1.75mm,750g	—	0.75 kg	★★★★☆ 4.0 out of 5 (1 Amazon ratings)	£28.98	£38.64	38% below
eSUN Silk PLA 3D Printer Filament 1.75mm Three-Color Gradient Shiny Silky Fila	PLA	1 kg	★★★★½ 4.6 out of 5 (47 Amazon ratings)	£38.88	£38.88	10% below
YXPOLYER PLA Plus 3D Printer Filament Food Grade PLA+ Violet Purple 1kg	PLA+	1 kg	—	£38.92	£38.92	—
Polymaker PLA Pro 3D Printing Filament Metallic Gold 1.75mm 1KG, High-Impact T	PLA	1 kg	★★★★½ 4.3 out of 5 (88 Amazon ratings)	£38.93	£38.93	12% below
TINMORRY Rapid PLA Filament 1.75 mm, 1 KG, Cold White	PLA	1 kg	★★★★½ 4.3 out of 5 (10 Amazon ratings)	£38.99	£38.99	—
Bambu Lab 3D Printer Filament, 1.75mm PLA 3D Printing Filament Dimensional Acc	PLA	1 kg	★★★★½ 4.6 out of 5 (372 Amazon ratings)	£39.12	£39.12	10% below
Amoybaby Yellow Silk Pla Filament 1.75mm 1kg,High Precision Dimensional Accura	PLA	1 kg	★★★★½ 4.5 out of 5 (1,074 Amazon ratings)	£39.25	£39.25	—
PLA Basic Filament 1.75mm, 1KG Spool (2.2 LBS) High Speed Printing 3D Printer	PLA	1 kg	★★★★½ 4.4 out of 5 (125 Amazon ratings)	£39.33	£39.33	—
TINMORRY ABS Filament 1.75 mm, ABS (Pro) 3D Printer Filament 1 kg, Good Heat R	ABS	1 kg	★★★★★ 5.0 out of 5 (6 Amazon ratings)	£39.42	£39.42	—
YXPOLYER Carbon Fiber Nylon Filament 3D Printer Filament PA6-CF Filament 1.75m	Nylon	1 kg	★★★★½ 4.4 out of 5 (211 Amazon ratings)	£39.52	£39.52	—
OVV3D Dual-Color Silk PLA Filament 1.75mm Black Red, 1kg	PLA	1 kg	★★★★½ 4.3 out of 5 (31 Amazon ratings)	£39.55	£39.55	5% below
Prusament 3D Printer Premium Filament PETG Jet Black 1.75mm - 1kg Spool	PETG	1 kg	★★★★½ 4.6 out of 5 (474 Amazon ratings)	£39.62	£39.62	—
TPU 3D Printer Filament, TINMORRY TPU Filament 1.75mm, 1 kg (2.2 lbs)/Spool, B	TPU	1 kg	★★★★½ 4.7 out of 5 (201 Amazon ratings)	£39.62	£39.62	7% below
UGEE PLA 3D Printer Filament PLA Filament 1.75mm, Neatly Wound 3D Printing Fil	PLA	1 kg	—	£39.62	£39.62	—
Carbon Fiber PETG Filament 1.75mm, TINMORRY PETG-CF 3D Printer Filament, 1 KG	PETG-CF	1 kg	★★★★★ 4.8 out of 5 (188 Amazon ratings)	£39.71	£39.71	13% below
Prusament Urban Grey, PETG Filament 1.75mm 1kg Spool (2.2 lbs), Diameter toler	PETG	1 kg	★★★★☆ 3.9 out of 5 (12 Amazon ratings)	£39.72	£39.72	30% below
OVVNYXE Tri-Colors Coextruded PLA Filament, 1.75mm, 2.2lbs, Silk PLA, Rainbow	PLA	1 kg	★★★★½ 4.6 out of 5 (800 Amazon ratings)	£39.79	£39.79	—
TINMORRY Fibreglass PETG Filament, High Impact Resistance PETG-GF 3D Printing	PETG-CF	1 kg	★★★★★ 4.8 out of 5 (106 Amazon ratings)	£39.81	£39.81	12% below
eSUN Silk PLA Filament Blue Silky Shiny 3D Printing PLA Filament 1.75mm Dimens	PLA	1 kg	★★★★★ 5.0 out of 5 (3 Amazon ratings)	£40.17	£40.17	—
JAREES Matte Petg Filament 1.75, Olive Green Matte Petg 3D Printing Filament 1	PETG	1 kg	★★★½☆ 3.4 out of 5 (32 Amazon ratings)	£40.24	£40.24	—
Kretrum PLA Filament 1.75mm 3D Printer Filaments Cardboard Spool Refills 1kg W	PLA	1 kg	★★★★½ 4.4 out of 5 (523 Amazon ratings)	£40.28	£40.28	—
eSUN Silk PLA Filament Rose Gold Silky Shiny 3D Printing PLA Filament 1.75mm D	PLA	1 kg	★★★★★ 5.0 out of 5 (2 Amazon ratings)	£40.58	£40.58	5% below
IEMAI Transparent Clear PLA Filament 1.75mm, High Light Transmittance Orange 3	PLA	1 kg	★★★★☆ 4.0 out of 5 (173 Amazon ratings)	£40.84	£40.84	—
JAREES PLA Filament 1.75mm Ruby Red 1KG, Clog-Free 3D Printer Filament Dimensi	PLA	1 kg	★★★★½ 4.5 out of 5 (102 Amazon ratings)	£41.06	£41.06	—
PLA 3D Printer Filament 1.75mm, Green,Blue,Purple,Pink,Cold serials,Multi Colo	PLA	1 kg	★★★★½ 4.3 out of 5 (463 Amazon ratings)	£41.19	£41.19	—
OVV3D PLA Filament 1.75mm, 3D Printer Filament Silk PLA Dual Color PLA Filamen	PLA	1 kg	★★★★★ 4.8 out of 5 (11 Amazon ratings)	£41.59	£41.59	—
OVVNYXE PLA Filament 1.75mm, Silk Black Green Color Changing, 1kg	PLA	1 kg	★★★★☆ 4.2 out of 5 (118 Amazon ratings)	£41.90	£41.90	—
LOVOON 3D Printer Filament 1KG Silk PLA Filament 1.75mm +/- 0.02mm Accuracy, 2	PLA	1 kg	★★★★½ 4.5 out of 5 (1,390 Amazon ratings)	£42.16	£42.16	6% below
Bambu Lab PLA Matte Filament 1.75mm 1kg Spool - PLA 3D Printer Filament, Smoot	PLA	1 kg	★★★★½ 4.4 out of 5 (74 Amazon ratings)	£42.58	£42.58	—
Bambu Lab PLA Matte Filament 1.75mm 1kg Spool - PLA 3D Printer Filament, Smoot	PLA	1 kg	★★★★½ 4.4 out of 5 (73 Amazon ratings)	£42.58	£42.58	—
Semdon 3D Printer Filament Rainbow Universe PLA Silk 1kg 1.75mm Multi Color, D	PLA	1 kg	★★★★½ 4.4 out of 5 (7 Amazon ratings)	£42.97	£42.97	—
XYZprinting PLA Filament, 1.75 mm, 600 g NFC Spool, Clear Red, RFPLCXEU02A	PLA	0.6 kg	★★★★☆ 4.1 out of 5 (1,039 Amazon ratings)	£25.86	£43.10	20% below
3D Printer Filament 1.75mm Dimensional 200g Spool for Most 3D Printer	—	0.2 kg	—	£8.69	£43.45	—
Bambu Lab PLA Matte Filament 1.75mm 1kg Spool - PLA 3D Printer Filament, Smoot	PLA	1 kg	★★★★½ 4.4 out of 5 (76 Amazon ratings)	£43.51	£43.51	—
ASA Filament 1.75mm Mint Green 1KG, High-Speed Printing UV & Weather & Heat Re	ASA	1 kg	★★★★½ 4.3 out of 5 (78 Amazon ratings)	£43.60	£43.60	—
CIYODO 1.75mm TPU Filament for 3D Printer 1kg Roll Non-Clogging with Stable Me	TPU	1 kg	—	£43.69	£43.69	12% below
Cookiecad Granite Mixer Dual-PLA 3D Printer Filament 1.75mm 1kg	PLA	1 kg	★★★★½ 4.6 out of 5 (1,006 Amazon ratings)	£43.92	£43.92	19% below
Polymaker PolyMax Tough PLA 3D Printer Filament - 1.75mm - 750G Blue	PLA	0.75 kg	★★★★★ 4.9 out of 5 (18 Amazon ratings)	£32.96	£43.95	28% below
Polymaker HT-PLA-GF Filament 1.75mm White, High Temp PLA for 3D Printing, Heat	PLA-CF	1 kg	★★★★☆ 4.2 out of 5 (29 Amazon ratings)	£43.97	£43.97	—

Guides

• Bed adhesion: what actually works
  Glue sticks, hairspray, rafts, brims and expensive surfaces — an honest ranking of what fixes prints coming loose, starting with the free fix that solves most cases.
• Do you need a filament dryer?
  Wet filament is real and ruins prints, but a dedicated dryer is not the only answer. How to tell if moisture is your problem, and what to do about it.
• Filament storage: dry boxes, vacuum bags and desiccant
  Keeping filament dry is cheaper than drying it out. What actually works, what desiccant to use, and why the little sachet in the bag is already spent.
• First layer calibration, properly
  Nearly every adhesion problem and half of all print failures start in the first layer. How to set Z offset by eye, and what a good first layer actually looks like.

Best-selling Filament by year — which actually sold best, going back several years, ranked by sales position rather than opinion.