How is the price-per-kg calculated?

The price-per-kg is calculated by dividing the offer price by the listed spool weight (converting grams to kilograms). For products with variants, the variant weight is used. Products without weight data are excluded from the analysis.

Why are Amazon prices excluded?

Amazon prices are excluded from the report because their dynamic pricing and third-party marketplace listings can skew aggregate material statistics. The report focuses on dedicated filament retailer pricing for more consistent comparisons.

How often is this report updated?

This report is generated monthly based on the most recent 14 days of pricing data. Check back each month for the latest filament price trends and best-value recommendations.

Updated August 1, 2026

Filament Price Report: August 2026

Our monthly filament pricing report for August 2026. 2137 products tracked across 14 material types. Overall trend: falling (-18.7% MoM).

The latest SpoolIndex Filament Price Report for August 2026 is here. This report covers 2137 products across 14 material types. **Overall Trend:** Prices are falling (-18.7% vs last month) **Quick Highlights:** - Biggest price drops: PLA (Sovol3d: -90.3%), PETG (Sovol3d: -90%), PLA-SILK (Sovol3d: -90%) - Biggest price spikes: PLA (Polymaker: +100%), PETG (Polymaker: +112.8%), PLA-SILK (Printed Solid: +9.1%) - Best value brands: PLA: Sunlu ($9/kg); PETG: Bolton ($5.72/kg); PLA-SILK: Sovol3d ($10.9/kg) **Price Breakdown by Material:** | Material | Products | Avg $/kg | Median $/kg | MoM | YoY | Best Value | |----------|----------|----------|-------------|-----|-----|------------| | PLA | 897 | $22.24 | $19.99 | -0.8% | N/A | Sunlu ($9/kg) | | PETG | 361 | $24.73 | $20.99 | +13.1% | N/A | Bolton ($5.72/kg) | | PLA-SILK | 243 | $22.51 | $19.99 | -3.6% | N/A | Sovol3d ($10.9/kg) | | ASA | 159 | $28.19 | $26.99 | -3.8% | N/A | Qidi Tech ($17.99/kg) | | PLA+ | 124 | $26.48 | $25.99 | +26.4% | N/A | American Filament ($16/kg) | | ABS | 95 | $22.78 | $21.99 | -10.7% | N/A | Jayo ($11.7/kg) | | TPU | 69 | $36.19 | $33.98 | +32.7% | N/A | Polar Filament ($19.68/kg) | | NYLON | 68 | $52.69 | $49.99 | -7.3% | N/A | Filamatrix ($34.99/kg) | | PLA-CF | 48 | $32.2 | $31.57 | -47.9% | N/A | Anycubic ($13/kg) | | PC | 28 | $41.44 | $34.49 | -6.9% | N/A | Polymaker ($28/kg) | | NYLON-CF | 21 | $82.97 | $86.66 | +3.2% | N/A | eryone3d ($22.99/kg) |

FAQ

How is the price-per-kg calculated?: The price-per-kg is calculated by dividing the offer price by the listed spool weight (converting grams to kilograms). For products with variants, the variant weight is used. Products without weight data are excluded from the analysis.
Why are Amazon prices excluded?: Amazon prices are excluded from the report because their dynamic pricing and third-party marketplace listings can skew aggregate material statistics. The report focuses on dedicated filament retailer pricing for more consistent comparisons.
How often is this report updated?: This report is generated monthly based on the most recent 14 days of pricing data. Check back each month for the latest filament price trends and best-value recommendations.

Filament Price Report: August 2026

FAQ

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