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Single-spool filament, ranked by £/kg — page 38

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.

3,061 listings tracked, 551 on offer right now.

Product	Material	Weight	Rating	Price	Per kg	Deal
SainSmart Flexible TPU 3D Printing Filament, 1.75 mm, 0.8 kg, Dimensional Accu	TPU	0.8 kg	★★★★½ 4.6 out of 5 (1,837 Amazon ratings)	£29.50	£36.88	—
R3D Dual Color Silk PLA 3D Printer Filament Filament, Co-Extrusion, 1.75mm 1KG	PLA	1 kg	★★★★☆ 4.1 out of 5 (232 Amazon ratings)	£36.89	£36.89	—
MarsWork PLA Basic, Pre-Dried Refill Filament 1kg (2.2lbs) for Reusable Spools	PLA	1 kg	★★★★☆ 4.2 out of 5 (17 Amazon ratings)	£36.91	£36.91	—
Creality 1.75 mm PLA Filament, Blue, 1 kg, High Speed 30-600 mm/s, Dimensional	PLA	1 kg	★★★★★ 4.8 out of 5 (7 Amazon ratings)	£36.94	£36.94	—
Bambu Lab PLA Filament Matte 3D Printer Filament 1.75mm PLA 1kg High Tenacity	PLA	1 kg	★★★★☆ 4.0 out of 5 (19 Amazon ratings)	£36.97	£36.97	5% below
Bambu Lab PLA Basic 1.75 mm 3D Printer Filament Refill 1 kg, Black	PLA	1 kg	★★★★½ 4.7 out of 5 (81 Amazon ratings)	£36.97	£36.97	—
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	—
Polymaker ABS Pro Filament Black 1KG 1.75mm, Heat Resistant, Strength	ABS	1 kg	★★★½☆ 3.5 out of 5 (17 Amazon ratings)	£37.05	£37.05	—
Creality Hyper PETG-CF Filament 1.75 mm, High Speed Carbon Filament (30-300 mm	PETG-CF	1 kg	★★★★★ 4.8 out of 5 (66 Amazon ratings)	£37.06	£37.06	—
extrudr® PLA NX2 Matte Diameter 1.75 mm (1 kg) 'Matte White' - 3D Printer Fila	PLA	1 kg	★★★★½ 4.3 out of 5 (211 Amazon ratings)	£37.08	£37.08	—
Creality Hyper PETG-CF Filament 1.75 mm, High Speed Carbon Filament (30-300 mm	PETG-CF	1 kg	★★★★★ 4.8 out of 5 (62 Amazon ratings)	£37.09	£37.09	—
Bambu Lab PETG Translucent Filament 1.75mm 1kg Spool - Strong Durable 3D Print	PETG	1 kg	★★★★½ 4.3 out of 5 (48 Amazon ratings)	£37.10	£37.10	5% below
PCTG 3D Printing Filament 1.75 mm, 1 kg Roll (Silver)	PCTG	1 kg	★★★★☆ 4.1 out of 5 (19 Amazon ratings)	£37.12	£37.12	—
Polymaker PolyLite LW-PLA - 1.75mm - 800g - Black	PLA	0.8 kg	★★★★☆ 4.2 out of 5 (148 Amazon ratings)	£29.77	£37.21	7% 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)	£37.24	£37.24	—
Creality Hyper PETG-CF Filament 1.75 mm, High Speed Carbon Filament (30-300 mm	PETG-CF	1 kg	★★★★★ 4.8 out of 5 (65 Amazon ratings)	£37.27	£37.27	—
AICOPYTO Dual Color Silk PLA 3D Printer Filament 1.75mm, Dual Color 2-in-1 Gre	PLA	1 kg	★★★★½ 4.5 out of 5 (346 Amazon ratings)	£37.37	£37.37	—
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
Panchroma PLA Steel Grey 3D Printer Filament, 1.75mm, 1kg Spool, Easy to Print	PLA	1 kg	★★★★½ 4.6 out of 5 (295 Amazon ratings)	£37.44	£37.44	—
Panchroma PLA White 3D Printer Filament, 1.75mm, 1kg Spool, Easy to Print, Hig	PLA	1 kg	★★★★½ 4.6 out of 5 (293 Amazon ratings)	£37.44	£37.44	—
Panchroma PLA Polymaker Teal 3D Printer Filament, 1.75mm, 1kg Spool, Easy to P	PLA	1 kg	★★★★½ 4.6 out of 5 (295 Amazon ratings)	£37.44	£37.44	—
TINMORRY Silk PLA Filament 1.75 mm, 1 KG, Silk Green	PLA	1 kg	★★★★½ 4.6 out of 5 (1,097 Amazon ratings)	£37.47	£37.47	—
Prusament 3D Printer Premium Filament ASA Jet Black 1.75mm - 800g Spool	ASA	0.8 kg	★★★★½ 4.6 out of 5 (29 Amazon ratings)	£29.99	£37.49	6% below
HP3DF PLA Filament, Silk PLA, 3D Printer Filament, PLA Filament 1.75mm Dimensi	PLA	1 kg	★★★★☆ 4.2 out of 5 (72 Amazon ratings)	£37.53	£37.53	—
SainSmart - 540GBL Flexible TPU 3D Printing Filament, Glow in The Dark, Lumino	TPU	1 kg	★★★★☆ 4.1 out of 5 (74 Amazon ratings)	£37.54	£37.54	—
colorFabb XT Light Gray 3D Print Filament,1.75mm,750g	—	0.75 kg	★★★★★ 5.0 out of 5 (1 Amazon ratings)	£28.16	£37.55	38% 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	—
Panchroma PLA Cream 3D Printer Filament, 1.75mm, 1kg Spool, Easy to Print, Hig	PLA	1 kg	★★★★½ 4.6 out of 5 (256 Amazon ratings)	£37.58	£37.58	—
Miailuy Silk Filament PLA 1.75mm Silk 3D Printer Filament, Silk Red 1kg Spool	PLA	1 kg	—	£37.58	£37.58	—
Polymaker PolyLite LW-PLA - 1.75mm - 800g - Grey	PLA	0.8 kg	★★★★☆ 4.2 out of 5 (310 Amazon ratings)	£30.07	£37.59	8% below
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	—
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	—
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)	£41.41	£37.65	6% below
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
Polymaker PD01006 PolyFlex TPU-95A Filament TPU flexibel 1.75mm 750g Orange 1	TPU	0.75 kg	★★★★½ 4.7 out of 5 (47 Amazon ratings)	£28.27	£37.69	33% below
iSANGHU ASA Filament 1.75mm, UV/Heat Resistant/Weather Resistant ASA 3D Printe	ASA	1 kg	★★★★☆ 4.0 out of 5 (318 Amazon ratings)	£37.69	£37.69	—
PCTG 3D Printing Filament 1.75mm, 1KG Spool PCTG Basic Filament Highly Transpa	PCTG	1 kg	★★★★☆ 4.1 out of 5 (20 Amazon ratings)	£37.74	£37.74	—
Stronghero3D PETG 3D Printer Filament 1.75mm,Silk Rainbow,Multi Color,Solid Op	PETG	1 kg	★★★★½ 4.4 out of 5 (44 Amazon ratings)	£37.75	£37.75	—
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	—
YUANEANG Matte Lavender Purple PLA 3D Printer Filament 1.75mm, 1kg Spool, Soft	PLA	1 kg	★★★★☆ 4.2 out of 5 (33 Amazon ratings)	£37.77	£37.77	—
Reusable and removable empty filament spool, 3D printer filament refill PLA Pl	PLA+	1 kg	★★★★½ 4.5 out of 5 (626 Amazon ratings)	£37.80	£37.80	—
PETG Filament 1.75mm 2025 Upgrade Spool Compatible with Bambulab Refill Filame	PETG	1 kg	★★★★☆ 4.1 out of 5 (35 Amazon ratings)	£37.80	£37.80	—
XZN PETG Filament 1.75mm Metallic Gold, with Metallic Shimmer, 1kg (2.2lbs), E	PETG	1 kg	★★★★½ 4.4 out of 5 (39 Amazon ratings)	£37.84	£37.84	—
Bambu Lab PETG Translucent Filament 1.75mm 1kg Spool - Strong Durable 3D Print	PETG	1 kg	★★★★½ 4.3 out of 5 (45 Amazon ratings)	£37.84	£37.84	—
Gitter Pink PLA 3D Printer Filament PLA 1.75mm HP3DF Premium Toughness Enhance	PLA+	1 kg	★★★★½ 4.4 out of 5 (1,359 Amazon ratings)	£37.85	£37.85	—
Gitter Purple PLA 3D Printer Filament PLA 1.75mm HP3DF Premium Toughness Enhan	PLA+	1 kg	★★★★½ 4.4 out of 5 (1,356 Amazon ratings)	£37.87	£37.87	—
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	—
eSUN Silk PLA Filament Black Silky Shiny 3D Printing PLA Filament 1.75mm Dimen	PLA	1 kg	—	£37.94	£37.94	16% below
R3D PLA Pro Silk Gold High Speed Filament 1.75mm 1KG, 3D Printer Filament for	PLA	1 kg	★★★★½ 4.3 out of 5 (624 Amazon ratings)	£37.97	£37.97	16% below
Bambu Lab PLA Matte (Matte) - 3D Filament 1.75mm, Matte Finish Uniform, ±0.3mm	PLA	1 kg	★★★★½ 4.7 out of 5 (567 Amazon ratings)	£38.06	£38.06	26% below
eSUN Silk PLA Filament Purple Silky Shiny 3D Printing PLA Filament 1.75mm Dime	PLA	1 kg	★★★★★ 5.0 out of 5 (1 Amazon ratings)	£38.16	£38.16	8% 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	—
TECSONAR Silk Rainbow PLA 3D Printer Filament, 1KG Spool(2.2lbs) 1.75mm PLA Fa	PLA	1 kg	★★★★½ 4.5 out of 5 (56 Amazon ratings)	£38.33	£38.33	—
Kingroon PETG 3D Printer Filament, Dimensional Accuracy +/- 0.03 mm, 1 kg Spoo	PETG	1 kg	★★★★½ 4.4 out of 5 (515 Amazon ratings)	£38.37	£38.37	60% below
YXPOLYER Flexible PLA Filament Flex PLA Pro 1.75mm 1kg Soft PLA 92A 3D Printer	TPU	1 kg	★★★½☆ 3.6 out of 5 (4 Amazon ratings)	£38.38	£38.38	—
PCTG 3D Printing Filament 1.75 mm, 1 kg Roll (Grey)	PCTG	1 kg	★★★★☆ 4.1 out of 5 (20 Amazon ratings)	£38.38	£38.38	—

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.