One kilogram asks for less money at checkout. The 2 kg package buys more resin per dollar. Before trusting a price badge, check what comes in the selected package.
Two packages of the same grey resin
At 11:01 UTC on November 9, 2026, Elegoo’s US storefront listed these two Grey Standard Resin V2.0 variants as available. The prices are in USD before shipping and tax. The package mass comes from the manufacturer’s selected variant label. Elegoo variant metadata
| Package | Offer at the check | Cost per kg |
|---|---|---|
| 1 kg grey · 44479715672167 | $19.99 | $19.99 |
| 2 kg grey · 44479768461415 | $32.99 | $16.50 |
Divide each offer by its own mass. For the 2 kg package, $32.99 ÷ 2 = $16.495/kg, displayed as $16.50/kg. The larger order costs $13.00 more upfront. If you need both kilograms, buying two of the 1 kg package at the observed price would cost $39.98, or $6.99 more than the 2 kg package before shipping and tax.
Pick the question you need answered. How much do you have to spend to start? How much will it cost to buy the amount you expect to use? If you’re qualifying a new resin, paying $13 more for stock you may never use can erase the appeal of a lower unit price.
Give the filter a denominator
Open the Material Explorer with a $20/kg resin ceiling and inspect an offer’s package and observation date. The catalog carries the reviewed 1 kg variant of Standard Resin V2.0. The 2 kg variant is the second line of this dated comparison.
To compare an offer yourself, record the exact formulation, color, package mass, market and date. A collection price without a matched package leaves cost per kilogram unknown. Recheck the selected offer and shipping at checkout. When you need the cost of a finished part, include the rest of the resin workflow in your job costing.